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Autolite
Iridium Spark PlugAutolite XP5243 Spark Plug
| Brand | Autolite XP5243 |
|---|---|
| Resistance | 4000 |
| Ground Electrode Tip Design | Taper cut |
| 11589 | Metric |
| Ground Electrode Core Material | Nickel |
| Washer Included | No |
| Grade Type | Performance |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Iridium |
| Ground Electrode Quantity | 1 |
| Hex Size | 5/8 |
| Manufacturer Heat Range | 10 |
| Seat Type | Tapered |
| Reach | 0.679 |
| Reach | 17 |
| Insulator Material | Ceramic |
| Resistor Type | Yes |
| Thread Size | M14 - 1.25 |
| Ground Electrode Tip Material | Platinum |
| Skirt | Yes |
| Hex Type | Hex |
| Center Electrode Design | Fine wire |
| 9746 | No |
| 9805 | Long projection |
| Thread Diameter | 14 |
| Product line | Iridium Spark Plug |
| Fits | Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac · 243 vehicles |
Iridium fine-wire design. Helps improve ignitability, acceleration, and fuel efficiency.
Platinum ground electrode. Adds durability with a tapered ground wire for efficient combustion.
Performance grade. Built as a spark plug with a ceramic insulator and copper core.
Cross-references 41-110, 12571165 and 12680072 for the same application. See all 10.
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Autolite XP5243 Iridium Spark Plug
Autolite XP5243 is an iridium spark plug built for performance-focused ignition service in a wide range of GM applications. It uses an iridium-enhanced fine-wire center electrode, a platinum ground electrode tip, and a tapered ground wire to support efficient combustion, steady ignitability, and responsive engine operation.
The Autolite Iridium Spark Plug line is engineered for drivers who want OE-style fitment with upgraded electrode materials. In applications such as Chevrolet Silverado 2500 HD, GMC Sierra 3500 HD, and Cadillac CTS, XP5243 is specified for modern ignition systems that demand consistent spark quality and durability.
Key Features
- Iridium-enhanced fine-wire center electrode for precise spark delivery
- Platinum ground electrode tip for added durability
- Taper-cut ground electrode design to improve combustion efficiency
- Resistor type plug with 4,000 ohms resistance
- Ceramic insulator and copper core center electrode
- M14 x 1.25 thread size, 14 mm thread diameter, 17 mm reach
- 5/8 hex size with tapered seat and long projection design
- Heat range 10 for specified OE-style applications
Detailed Description
Autolite XP5243 is a performance-grade iridium spark plug designed around a fine-wire center electrode and a platinum-tipped ground electrode. That combination helps maintain stable spark characteristics while supporting durability in demanding ignition environments. The tapered ground wire and long projection configuration are used to promote efficient flame travel and consistent engine response.
This part number is used across many GM truck, SUV, and performance car applications, including Chevrolet Express 2500, Chevrolet Silverado 3500 HD, GMC Savana 3500, GMC Sierra 2500 HD, and Cadillac Escalade. If you are servicing a Chevrolet Camaro, Corvette, or GMC Yukon application that calls for XP5243, this plug is built to match the specified OE-style requirements.
This part cross-references AC Delco 41-110 for the same application.
What It Helps Address
- Rough idle caused by worn spark plug electrodes
- Hard starting from weak or inconsistent ignition output
- Misfire conditions related to degraded spark quality
- Reduced throttle response from inefficient combustion
- Fuel economy loss tied to aging ignition components
Installation Notes and Tips
Verify thread size, reach, seat type, and heat range against the vehicle’s service specification before installation. XP5243 uses a tapered seat and non-removable nut terminal, so confirm the ignition coil or wire connection style matches the vehicle application. For best results, inspect coil boots, plug wires, and ignition coils during service, and gap-check only if the application specification requires it.
Fits 2011-2020 Chevrolet Express 2500, N/A. Fits 2011-2020 Chevrolet Express 3500, N/A. Fits 2013-2020 GMC Savana 2500, N/A. Fits 2013-2020 GMC Savana 3500, N/A. Fits 2011-2019 Chevrolet Silverado 2500 HD, N/A. Fits 2011-2019 Chevrolet Silverado 3500 HD, N/A. Fits 2016-2019 Chevrolet Suburban 3500 HD, N/A. Fits 2016-2019 GMC Sierra 2500 HD, N/A. Fits 2013-2019 GMC Sierra 3500 HD, N/A. Fits 2013-2017 Chevrolet Caprice, N/A. Fits 2014-2017 Chevrolet SS, N/A. Fits 2007-2016 Cadillac Escalade, N/A. Fits 2007-2016 Cadillac Escalade ESV, N/A. Fits 2009-2015 Cadillac CTS, N/A. Fits 2010-2015 Chevrolet Camaro, N/A. Fits 2013-2015 GMC Savana 2500, N/A. Fits 2013-2015 GMC Savana 3500, N/A. Fits 2013-2015 GMC Sierra 2500 HD, N/A. Fits 2011-2014 Chevrolet Express 1500, N/A. Fits 2013-2014 Chevrolet Suburban 1500, N/A. Fits 2010-2014 Chevrolet Tahoe, N/A. Fits 2013-2014 GMC Savana 1500, N/A. Fits 2013-2014 GMC Yukon, N/A. Fits 2013-2014 GMC Yukon XL 1500, N/A. Fits 2007-2013 Cadillac Escalade EXT, N/A. Fits 2013 Chevrolet Avalanche, N/A. Fits 2006-2013 Chevrolet Corvette, N/A. Fits 2011-2013 Chevrolet Silverado 1500, N/A. Fits 2013 Chevrolet Suburban 2500, N/A. Fits 2013 GMC Sierra 1500, N/A. Fits 2013 GMC Yukon XL 2500, N/A. Fits 2006-2009 Chevrolet Impala, N/A. Fits 2009 Pontiac G8, N/A. Fits 2006-2007 Cadillac CTS, N/A. Fits 2003-2006 Chevrolet SSR, N/A. Fits 1991-1995 Chevrolet Lumina, N/A. Fits 1995 Chevrolet Monte Carlo, N/A. Fits 1991-1995 Oldsmobile Cutlass Supreme, N/A. Fits 1991-1995 Pontiac Grand Prix, N/A.
Quality Assurance
Autolite designs the XP Iridium Spark Plug line with iridium and platinum electrode materials to support durability and stable ignition performance in specified OE-style applications. XP5243 is built to the listed thread, seat, reach, and heat-range requirements for direct replacement service where specified.
This part fits 243 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2020 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2020 | GMC | Savana 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2020 | GMC | Savana 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | Chevrolet | Suburban 3500 HD | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | GMC | Savana 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | GMC | Savana 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | GMC | Sierra 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2019 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | Chevrolet | Suburban 3500 HD | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | GMC | Savana 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | GMC | Savana 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | GMC | Sierra 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2018 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Caprice | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Express 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | SS | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | Chevrolet | Suburban 3500 HD | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | GMC | Savana 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | GMC | Savana 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | GMC | Savana 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | GMC | Savana 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | GMC | Sierra 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2017 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Cadillac | Escalade | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Caprice | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Express 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | SS | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | Chevrolet | Suburban 3500 HD | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | GMC | Savana 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | GMC | Savana 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | GMC | Savana 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | GMC | Savana 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | GMC | Sierra 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2016 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Cadillac | Escalade | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Camaro | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Caprice | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Express 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | Chevrolet | SS | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | GMC | Savana 2500 | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Savana 2500 | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Savana 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | GMC | Savana 3500 | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Savana 3500 | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Savana 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2015 | GMC | Sierra 2500 HD | 6.0L | V8 | GAS | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Sierra 2500 HD | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Sierra 2500 HD | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2015 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Cadillac | Escalade | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Camaro | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Caprice | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Express 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Express 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | SS | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Suburban 1500 | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | Chevrolet | Tahoe | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Savana 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Savana 2500 | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Savana 2500 | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Savana 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Savana 3500 | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Savana 3500 | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Savana 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Sierra 2500 HD | 6.0L | V8 | GAS | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Sierra 2500 HD | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Sierra 2500 HD | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2014 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Yukon | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Yukon | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Yukon XL 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2014 | GMC | Yukon XL 1500 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Cadillac | Escalade | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Cadillac | Escalade | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Avalanche | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Camaro | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Caprice | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Corvette | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Express 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Express 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Silverado 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Silverado 1500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Silverado 1500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Silverado 1500 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Suburban 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Suburban 2500 | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Tahoe | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | Chevrolet | Tahoe | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Savana 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Savana 2500 | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Savana 2500 | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Savana 2500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Savana 3500 | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Savana 3500 | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Savana 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Sierra 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Sierra 1500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Sierra 1500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Sierra 1500 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Sierra 2500 HD | 6.0L | V8 | GAS | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Sierra 2500 HD | 6.0L | V8 | FLEX | N/A | .040"/1.0mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Sierra 2500 HD | 6.0L | V8 | CNG | N/A | .030"/0.8mm; Iridium Enhanced Center Electrode. Proprietary V-trimmed Platinum side wire. 0.6mm finewire design.; OE Style; Iridium Spark Plug |
| 2013 | GMC | Sierra 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Yukon | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Yukon | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Yukon | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Yukon XL 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Yukon XL 1500 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2013 | GMC | Yukon XL 2500 | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Cadillac | Escalade | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Cadillac | Escalade | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Camaro | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Corvette | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Express 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Silverado 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Silverado 1500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Silverado 1500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Silverado 1500 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Tahoe | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2012 | Chevrolet | Tahoe | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Cadillac | Escalade | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Cadillac | Escalade | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Camaro | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Corvette | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Express 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Express 2500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Express 3500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Express 3500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Silverado 1500 | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Silverado 1500 | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Silverado 1500 | 4.8L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Silverado 1500 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Silverado 2500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Silverado 3500 HD | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Tahoe | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2011 | Chevrolet | Tahoe | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Cadillac | Escalade | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Chevrolet | Camaro | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Chevrolet | Corvette | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2010 | Chevrolet | Tahoe | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Cadillac | CTS | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Cadillac | Escalade | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Chevrolet | Corvette | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Chevrolet | Impala | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2009 | Pontiac | G8 | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2008 | Cadillac | Escalade | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2008 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2008 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2008 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2008 | Chevrolet | Corvette | 6.2L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2008 | Chevrolet | Impala | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2007 | Cadillac | CTS | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with V-trimmed platinum side wire, 0.6mm finewire design, .050" (1.3mm) OE style.; Iridium Spark Plug |
| 2007 | Cadillac | Escalade | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2007 | Cadillac | Escalade ESV | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2007 | Cadillac | Escalade EXT | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2007 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2007 | Chevrolet | Impala | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2006 | Cadillac | CTS | 6.0L | V8 | — | N/A | Iridium enhanced center electrode with V-trimmed platinum side wire, 0.6mm finewire design, .050" (1.3mm) OE style.; Iridium Spark Plug |
| 2006 | Chevrolet | Corvette | 7.0L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2006 | Chevrolet | Impala | 5.3L | V8 | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2006 | Chevrolet | SSR | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2005 | Chevrolet | SSR | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2004 | Chevrolet | SSR | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 2003 | Chevrolet | SSR | — | — | — | N/A | Iridium enhanced center electrode with platinum side wire, 0.6mm finewire design, 0.040"/1.0mm OE style.; Iridium Spark Plug |
| 1995 | Chevrolet | Lumina | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1995 | Chevrolet | Monte Carlo | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1995 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1995 | Pontiac | Grand Prix | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1994 | Chevrolet | Lumina | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1994 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1994 | Pontiac | Grand Prix | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1993 | Chevrolet | Lumina | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1993 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1993 | Pontiac | Grand Prix | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1992 | Chevrolet | Lumina | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1992 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1992 | Pontiac | Grand Prix | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1991 | Chevrolet | Lumina | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1991 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| 1991 | Pontiac | Grand Prix | 3.4L | V6 | — | N/A | Iridium enhanced center electrode with proprietary V-trimmed platinum side wire and 0.6mm finewire design; .045"/1.1mm; Iridium Spark Plug |
| No rows match your filter. | |||||||
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
41-1101257116512680072HR8LII33UIT16IT16TTIZTR5B11RS12WMPB4TR5IXZTJ16R10