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NGK 93163 Spark Plug
| Brand | NGK 93163 |
|---|---|
| Resistance | 5000 |
| Ground Electrode Tip Design | Disk |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Stud |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Iridium |
| Pre-Gap Size | 0.031 |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.6299212598 |
| Insulator Height | 50.50 |
| Manufacturer Heat Range | 5 |
| Seat Type | Flat |
| Reach | 1.04 |
| Thread Diameter | 14.00 |
| Part Number | Ilzfr5e8d |
| Stock Number | 93163 |
| Product line | Laser Iridium Spark Plug |
| Fits | Ram · 6 vehicles |
OE-focused design. Built to original equipment standards for dependable ignition performance.
Laser Iridium line. Uses an iridium center tip with a nickel ground electrode for stable spark delivery.
Precision spec match. Features a 14 mm thread, flat seat, and 0.031 pre-gap for the listed application.
Cross-references NGK 93163 for the same application. See all 1.
Laser Iridium Spark Plug Overview
NGK Laser Iridium Spark Plug 93163 is an OE-style ignition component built for precise combustion performance and long service life. It is a direct fit for select Ram 2500 applications and uses an iridium center electrode with a nickel ground electrode for stable spark delivery.
Fits 2013-2018 Ram 2500, N/A. Part number 93163 is listed with a 0.031 pre-gap, 14 mm thread diameter, flat seat, and 1.04 reach for the specified application.
- Laser iridium center electrode for consistent ignition performance.
- Nickel ground electrode with standard configuration.
- 5000 ohm resistance for controlled electrical output.
- Stud terminal type for the listed OE-style application.
- NGK 93163 is engineered to meet original equipment standards.
Detailed Fitment and Design
NGK 93163, also identified as ILZFR5E8D, is part of NGK’s Laser Iridium Spark Plug line. This product line focuses on precise electrode design and OE-level construction for dependable ignition performance. For Ram 2500 owners, the specified fitment covers 2013-2018 Ram 2500 applications with the listed dual-plug configuration and OE manufacturer service interval notes.
The plug’s iridium center tip, nickel ground electrode, and standard ground configuration support consistent spark characteristics under normal engine demands. The flat seat, 14 mm thread diameter, and 1.04 reach are important fitment details for matching the correct spark plug specification.
Common Replacement Reasons
- Misfire or rough idle caused by worn spark plug electrodes.
- Hard starting from degraded ignition performance.
- Reduced fuel efficiency related to weak spark output.
- Service replacement for the specified Ram 2500 ignition interval.
Installation Notes and Tips
Verify the engine’s required plug specification before installation, including thread diameter, reach, seat type, and pre-gap. Confirm the dual-plug application notes for the Ram 2500 fitment and follow the vehicle service procedure for torque and gap verification. Part number 93163 should be matched to the exact engine application listed in the fitment data.
Quality Assurance
NGK is a major OE supplier of spark plugs in North America and has more than 80 years of automotive manufacturing experience. The Laser Iridium Spark Plug line is built to original equipment standards for durability and operational performance. Part number 93163 reflects NGK’s OE-focused ignition engineering.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Notes |
|---|---|---|---|---|---|---|
| 2018 | Ram | 2500 | 5.7L | V8 | CNG | Dual Plug; 16 Req'd; Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2017 | Ram | 2500 | 5.7L | V8 | CNG | Dual Plug; 16 Req'd; Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2016 | Ram | 2500 | 5.7L | V8 | CNG | Dual Plug; 16 Req'd; Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2015 | Ram | 2500 | 5.7L | V8 | CNG | Dual Plug; 16 Req'd; Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2014 | Ram | 2500 | 5.7L | V8 | CNG | Dual Plug; 16 Req'd; Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
| 2013 | Ram | 2500 | 5.7L | V8 | CNG | Dual Plug; 16 Req'd; Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug |
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