/live/media/NP/NP_3381_Fro.jpg)
Denso 3381 Spark Plug
| Brand | Denso 3381 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | U-Groove |
| Hex Size | 16.0 |
| Manufacturer Heat Range | 20 |
| Pre-Gap Size | 1.1 |
| Reach | 26.50 |
| Resistance | 5000 |
| Seat Type | Flat |
| Thread Diameter | 14.00 |
| Product line | U-Groove Conventional |
| Fits | Mitsubishi, Subaru, Toyota, Lexus, BMW, Ram, Suzuki, Mercedes-Benz, Volvo, Dodge, Honda, Jeep, Yamaha, Saab, Chrysler, Nissan, Cadillac, and INFINITI · 301 vehicles |
U-Groove design. Improves ignitability for more efficient engine performance.
Copper core. Helps promote consistent spark delivery.
Conventional spark plug. A straightforward secondary ignition replacement.
Cross-references Chrysler 5149 050AB, Chrysler 5149 888AA and Chrysler SPFR8TE2AA for the same application. See all 7.
Denso 3381 U-Groove Spark Plug
Denso 3381 is a conventional spark plug built for consistent ignition performance across a wide range of import and domestic applications. Its U-Groove ground electrode design helps improve ignitability, supporting smoother combustion and more efficient engine operation in compatible vehicles.
Key Features
- U-Groove ground electrode design for improved spark exposure
- 5000 ohm resistor for stable ignition performance
- Copper center electrode core for dependable heat transfer
- Nickel center and ground electrode tip materials
- 1.1 pre-gap size for OE-style service replacement
- Flat seat, 14.00 mm thread diameter, 26.50 mm reach, 16.0 mm hex
- Manufacturer heat range 20
Product Details
The Denso U-Groove Conventional line is engineered as a practical OE-style spark plug option for drivers who want reliable starting, steady idle quality, and consistent combustion characteristics. Part number 3381 uses a copper core with nickel electrode materials and a U-shaped ground electrode tip to promote better ignitability at the spark gap. This design is commonly selected for vehicles that call for a conventional plug specification rather than a fine-wire iridium or platinum design. This part cross-references DENSO Auto Parts K20HR-U11 for the same application.
Compatible With applications such as Toyota Tacoma, Toyota Tundra, Toyota 4Runner, Subaru Outback, Subaru Forester, BMW 328i, and Volvo XC90, depending on engine configuration and model year. Denso 3381 also appears in fitments for Toyota Land Cruiser, Lexus GX460, Mitsubishi Mirage, and Honda Civic applications listed in the catalog.
What It Helps Address
- Hard starting caused by worn spark plugs
- Rough idle from weak or inconsistent spark delivery
- Misfire conditions related to aged ignition components
- Reduced fuel efficiency from incomplete combustion
- Loss of throttle response from degraded plug performance
Installation Notes and Tips
Verify engine-specific fitment before installation, especially on vehicles with special notes such as dual-plug cylinder heads or mixed plug types. Confirm the specified thread diameter, reach, seat type, and heat range match the engine requirements. Check and compare the pre-gap to the vehicle service specification before installing Denso 3381. For fitment examples, this plug is listed for 2005-2017 Toyota Tundra, 2004-2010 Subaru Forester, and 2007-2013 BMW X3 in the catalog.
Quality Assurance
Denso manufactures this spark plug to OE-style dimensional and performance specifications for secondary ignition service. The U-Groove design is intended to improve ignitability while maintaining the durability expected from a conventional replacement plug.
| Year | Make | Model | Submodel | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Mitsubishi | Mirage | — | — | N/A | U-Groove Conventional |
| 2017 | Mitsubishi | Mirage G4 | — | — | N/A | U-Groove Conventional |
| 2017 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2017 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2017 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2017 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2017 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2016 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2016 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2016 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2016 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2016 | Subaru | WRX STI | — | — | N/A | U-Groove Conventional |
| 2016 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2016 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2016 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2016 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2015 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2015 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2015 | Mitsubishi | Mirage | — | — | N/A | U-Groove Conventional |
| 2015 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2015 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2015 | Subaru | WRX STI | — | — | N/A | U-Groove Conventional |
| 2015 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2015 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2015 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2015 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2014 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2014 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2014 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2014 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2014 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2014 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2014 | Toyota | Tundra | — | — | N/A | To 06/2013; U-Groove Conventional |
| 2013 | BMW | 128i | — | — | N/A | U-Groove Conventional |
| 2013 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2013 | BMW | 328i xDrive | — | — | N/A | U-Groove Conventional |
| 2013 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2013 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2013 | Ram | 1500 | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2013 | Suzuki | Grand Vitara | — | — | N/A | U-Groove Conventional |
| 2013 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2013 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2013 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2013 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2013 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2013 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2012 | BMW | 128i | — | — | N/A | U-Groove Conventional |
| 2012 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2012 | BMW | 328i xDrive | — | — | N/A | U-Groove Conventional |
| 2012 | BMW | X3 | — | — | N/A | U-Groove Conventional |
| 2012 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2012 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2012 | Suzuki | Grand Vitara | — | — | N/A | U-Groove Conventional |
| 2012 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2012 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2012 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2012 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2012 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2011 | BMW | 128i | — | — | N/A | U-Groove Conventional |
| 2011 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2011 | BMW | 328i xDrive | — | — | N/A | U-Groove Conventional |
| 2011 | BMW | 528i | — | — | N/A | U-Groove Conventional |
| 2011 | BMW | X3 | — | — | N/A | U-Groove Conventional |
| 2011 | BMW | Z4 | — | — | N/A | U-Groove Conventional |
| 2011 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2011 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2011 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2011 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2011 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2011 | Suzuki | Grand Vitara | — | — | N/A | U-Groove Conventional |
| 2011 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2011 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2011 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2011 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2011 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2011 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2011 | Volvo | C30 | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | 128i | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | 328i xDrive | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | 528i | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | 528i xDrive | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | X3 | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | X5 | — | — | N/A | U-Groove Conventional |
| 2010 | BMW | Z4 | — | — | N/A | U-Groove Conventional |
| 2010 | Dodge | Dakota | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2010 | Dodge | Ram 1500 | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2010 | Honda | Civic | Hybrid | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2010 | Jeep | Commander | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2010 | Lexus | GX460 | — | — | N/A | U-Groove Conventional |
| 2010 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2010 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2010 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2010 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2010 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2010 | Suzuki | Grand Vitara | — | — | N/A | U-Groove Conventional |
| 2010 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2010 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2010 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2010 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2010 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2010 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | C30 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | C70 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | S80 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | V50 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | V70 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | XC60 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | XC70 | — | — | N/A | U-Groove Conventional |
| 2010 | Volvo | XC90 | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | 128i | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | 328i xDrive | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | 528i | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | 528i xDrive | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | X3 | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | X5 | — | — | N/A | U-Groove Conventional |
| 2009 | BMW | Z4 | — | — | N/A | U-Groove Conventional |
| 2009 | Dodge | Durango | — | — | N/A | U-Groove Conventional |
| 2009 | Honda | Civic | Hybrid | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2009 | Jeep | Commander | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2009 | Jeep | Grand Cherokee | — | FLEX | N/A | Intake: STD / Exhaust: Iridium, Qty2 Per Cyl.; U-Groove Conventional |
| 2009 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2009 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2009 | Mercedes-Benz | SLR McLaren | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2009 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2009 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2009 | Saab | 9-3 | — | — | N/A | U-Groove Conventional |
| 2009 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2009 | Suzuki | Grand Vitara | — | — | N/A | U-Groove Conventional |
| 2009 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2009 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2009 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2009 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2009 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2009 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2009 | Volvo | C30 | — | — | N/A | U-Groove Conventional |
| 2009 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2009 | Volvo | V50 | — | — | N/A | U-Groove Conventional |
| 2009 | Volvo | XC90 | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | 128i | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | 328xi | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | 528i | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | 528xi | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | X3 | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | X5 | — | — | N/A | U-Groove Conventional |
| 2008 | BMW | Z4 | — | — | N/A | U-Groove Conventional |
| 2008 | Chrysler | Aspen | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Honda | Civic | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Jeep | Commander | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Jeep | Grand Cherokee | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Lexus | LX570 | — | — | N/A | U-Groove Conventional |
| 2008 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Mercedes-Benz | SL55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Mercedes-Benz | SLR McLaren | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2008 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2008 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2008 | Saab | 9-3 | — | — | N/A | U-Groove Conventional |
| 2008 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2008 | Subaru | Impreza | WRX | — | N/A | U-Groove Conventional |
| 2008 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2008 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2008 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2008 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2008 | Toyota | Land Cruiser | — | — | N/A | U-Groove Conventional |
| 2008 | Toyota | Sequoia | — | — | N/A | U-Groove Conventional |
| 2008 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2008 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | C30 | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | C70 | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | S60 | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | S80 | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | V50 | — | — | N/A | U-Groove Conventional |
| 2008 | Volvo | XC90 | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | 328i | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | 328xi | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | 525i | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | 525xi | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | 530i | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | 530xi | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | X3 | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | X5 | — | — | N/A | U-Groove Conventional |
| 2007 | BMW | Z4 | — | — | N/A | U-Groove Conventional |
| 2007 | Honda | Civic | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2007 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2007 | Mercedes-Benz | SL55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2007 | Mercedes-Benz | SLR McLaren | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2007 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2007 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2007 | Nissan | Maxima | — | — | N/A | To 06/2006; U-Groove Conventional |
| 2007 | Saab | 9-3 | — | — | N/A | U-Groove Conventional |
| 2007 | Subaru | B9 Tribeca | — | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Impreza | WRX | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Impreza | WRX TR | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Impreza | WRX STI | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Impreza | WRX STI Limited | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2007 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2007 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2007 | Toyota | FJ Cruiser | — | — | N/A | U-Groove Conventional |
| 2007 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2007 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | C70 | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | S60 | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | S80 | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | V50 | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | V70 | — | — | N/A | U-Groove Conventional |
| 2007 | Volvo | XC90 | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 325i | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 325xi | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 330i | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 330xi | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 525i | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 525xi | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 530i | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | 530xi | — | — | N/A | U-Groove Conventional |
| 2006 | BMW | Z4 | — | — | N/A | U-Groove Conventional |
| 2006 | Honda | Civic | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2006 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| 2006 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2006 | Mercedes-Benz | S55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2006 | Mercedes-Benz | SL55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2006 | Mercedes-Benz | SLR McLaren | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2006 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2006 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2006 | Mitsubishi | Lancer | — | — | N/A | U-Groove Conventional |
| 2006 | Mitsubishi | Outlander | — | — | N/A | U-Groove Conventional |
| 2006 | Saab | 9-3 | — | — | N/A | U-Groove Conventional |
| 2006 | Subaru | B9 Tribeca | — | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Baja | — | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Impreza | WRX | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Impreza | WRX TR | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Impreza | WRX STI | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Impreza | WRX Limited | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2006 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2006 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2006 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2006 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2006 | Volvo | C70 | — | — | N/A | U-Groove Conventional |
| 2006 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2006 | Volvo | S60 | — | — | N/A | U-Groove Conventional |
| 2006 | Volvo | V50 | — | — | N/A | U-Groove Conventional |
| 2006 | Volvo | V70 | — | — | N/A | U-Groove Conventional |
| 2005 | Cadillac | STS | — | — | N/A | U-Groove Conventional |
| 2005 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| 2005 | INFINITI | QX56 | — | — | N/A | U-Groove Conventional |
| 2005 | Mercedes-Benz | G55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2005 | Mercedes-Benz | S55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2005 | Mercedes-Benz | SL55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2005 | Mercedes-Benz | SLR McLaren | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2005 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2005 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2005 | Mitsubishi | Lancer | — | — | N/A | U-Groove Conventional |
| 2005 | Mitsubishi | Outlander | — | — | N/A | U-Groove Conventional |
| 2005 | Subaru | Baja | — | — | N/A | U-Groove Conventional |
| 2005 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2005 | Subaru | Impreza | WRX STI | — | N/A | U-Groove Conventional |
| 2005 | Subaru | Legacy | — | — | N/A | U-Groove Conventional |
| 2005 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2005 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2005 | Toyota | Tacoma | — | — | N/A | U-Groove Conventional |
| 2005 | Toyota | Tundra | — | — | N/A | U-Groove Conventional |
| 2005 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2005 | Volvo | S60 | — | — | N/A | B5254T4; U-Groove Conventional |
| 2005 | Volvo | S60 | — | — | N/A | U-Groove Conventional |
| 2005 | Volvo | V50 | — | — | N/A | U-Groove Conventional |
| 2005 | Volvo | V70 | — | — | N/A | U-Groove Conventional |
| 2004 | Cadillac | SRX | — | — | N/A | U-Groove Conventional |
| 2004 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| 2004 | Mercedes-Benz | S55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2004 | Mercedes-Benz | SL55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2004 | Mitsubishi | Eclipse | — | — | N/A | U-Groove Conventional |
| 2004 | Mitsubishi | Galant | — | — | N/A | U-Groove Conventional |
| 2004 | Mitsubishi | Lancer | — | — | N/A | U-Groove Conventional |
| 2004 | Mitsubishi | Outlander | — | — | N/A | U-Groove Conventional |
| 2004 | Subaru | Baja | — | — | N/A | U-Groove Conventional |
| 2004 | Subaru | Forester | — | — | N/A | U-Groove Conventional |
| 2004 | Subaru | Impreza | WRX STI | — | N/A | U-Groove Conventional |
| 2004 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2004 | Volvo | S40 | — | — | N/A | U-Groove Conventional |
| 2004 | Volvo | S60 | — | — | N/A | B5254T4; U-Groove Conventional |
| 2004 | Volvo | V70 | — | — | N/A | U-Groove Conventional |
| 2003 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| 2003 | INFINITI | FX35 | — | — | N/A | U-Groove Conventional |
| 2003 | Mercedes-Benz | E55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2003 | Mercedes-Benz | S55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2003 | Mercedes-Benz | SL55 AMG | — | — | N/A | Two spark plugs are required per cylinder.; U-Groove Conventional |
| 2003 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2003 | Toyota | 4Runner | — | — | N/A | U-Groove Conventional |
| 2002 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| 2002 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2001 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| 2001 | Subaru | Outback | — | — | N/A | U-Groove Conventional |
| 2000 | Honda | Insight | — | — | N/A | U-Groove Conventional |
| No rows match your filter. | ||||||