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Denso 3005 Spark Plug
| Brand | Denso 3005 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Platinum |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Platinum Chip |
| Hex Size | 16.0 |
| Manufacturer Heat Range | 16 |
| Pre-Gap Size | 1.1 |
| Reach | 19.00 |
| Resistance | 5000 |
| Seat Type | Flat |
| Thread Diameter | 14.00 |
| Product line | Double Platinum |
| Fits | Saturn, Jaguar, Saab, Mercedes-Benz, BMW, Geo, Toyota, Acura, Honda, Peugeot, Cadillac, Chevrolet, Nissan, Buick, Ford, Oldsmobile, Pontiac, and Mercury · 201 vehicles |
OE performance standards. Built to meet strict durability and emissions requirements.
Double platinum design. Platinum on both electrodes helps maintain consistent spark performance.
Copper core construction. Promotes efficient heat transfer for reliable ignition.
Cross-references Datsun/Nissan 22401-01P15, DENSO Auto Parts PQ16R and Ford AGSP32P for the same application. See all 14.
Denso Double Platinum Spark Plug 3005
Denso 3005 is a Double Platinum spark plug built for OE-style ignition performance, durability, and emissions control. It is a fitment-based replacement for a wide range of import and domestic vehicles, including Saturn SC1, Saturn SL2, and Toyota Supra applications.
Key Features
- Double Platinum design with platinum on the center electrode tip for extended wear resistance
- Platinum chip ground electrode tip design for stable spark performance
- Copper center electrode core and nickel ground electrode core for efficient heat transfer
- 5000 ohm resistor helps reduce electrical noise
- Pre-gapped to 1.1 mm for OE-style service fitment
- Flat seat, 14.00 mm thread diameter, 19.00 mm reach, and 16.0 mm hex size
- Manufactured to meet strict OE performance, durability, and emissions standards
Product Details
The Denso Double Platinum line is engineered for drivers who want a direct replacement spark plug with consistent ignition characteristics and long service life. Part number 3005 uses a platinum center electrode tip and platinum chip ground design to support dependable spark delivery in applications such as Saturn SC2, Honda CRX, and Mercedes-Benz 300SL. Its OE-style construction and heat range 16 specification make it a practical choice for vehicles that call for this exact plug design.
This part cross-references DENSO Auto Parts PQ16R and Toyota 90919-01121 for the same application.
Common Symptoms This Spark Plug Can Address
- Rough idle caused by worn or fouled spark plugs
- Hard starting from weak or inconsistent ignition output
- Misfire conditions related to electrode wear
- Reduced fuel economy from inefficient combustion
- Loss of throttle response in aging ignition systems
Installation Notes and Tips
Verify the thread diameter, reach, seat type, and heat range against the vehicle’s service specifications before installation. Check the pre-gap against the engine requirement and inspect ignition wires or coils for wear so the new plug can perform as intended. Confirm fitment carefully for vehicles such as Saturn SL1, Toyota Camry, and Saab 9000, since spark plug applications vary by engine and model year.
Quality Assurance
Denso manufactures this spark plug to OE performance, durability, and emissions standards for consistent service in the listed applications. Fitment coverage includes 1981-2002 vehicles across Saturn, Toyota, Honda, Mercedes-Benz, BMW, Saab, Nissan, Ford, GM, and more, with confirmed applications such as Fits 1999-2002 Saturn SC1, Fits 1986-1992 Toyota Supra, and Fits 1991-1994 Saab 900.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2002 | Saturn | SC1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2002 | Saturn | SC2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2002 | Saturn | SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2002 | Saturn | SL1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2002 | Saturn | SL2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2001 | Saturn | SC1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2001 | Saturn | SC2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2001 | Saturn | SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2001 | Saturn | SL1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2001 | Saturn | SL2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2001 | Saturn | SW2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2000 | Saturn | SC1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2000 | Saturn | SC2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2000 | Saturn | SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2000 | Saturn | SL1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2000 | Saturn | SL2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 2000 | Saturn | SW2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Jaguar | XK8 | — | N/A | Double Platinum |
| 1999 | Saturn | SC1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Saturn | SC2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Saturn | SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Saturn | SL1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Saturn | SL2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Saturn | SW1 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1999 | Saturn | SW2 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1998 | Saab | 900 | — | N/A | Double Platinum |
| 1997 | Mercedes-Benz | C280 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1997 | Mercedes-Benz | S420 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1997 | Mercedes-Benz | S500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1997 | Mercedes-Benz | SL320 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1997 | Mercedes-Benz | SL500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1997 | Saab | 900 | — | N/A | Double Platinum |
| 1996 | Mercedes-Benz | C220 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | BMW | 850CSi | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | C220 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | E420 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | S420 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | S500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | S600 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | SL500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1995 | Mercedes-Benz | SL600 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | BMW | 850Ci | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | BMW | 850CSi | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | C220 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | E420 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | E500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | S420 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | S500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | S600 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | SL500 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Mercedes-Benz | SL600 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1994 | Saab | 900 | — | N/A | Double Platinum |
| 1993 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | BMW | 850Ci | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Geo | Storm | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 300CE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 300E | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 300SE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 300SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 300TE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 400E | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 400SEL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 500E | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 500SEC | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 500SEL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 500SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 600SEC | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 600SEL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Mercedes-Benz | 600SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1993 | Saab | 900 | — | N/A | Double Platinum |
| 1992 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | BMW | 850i | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Geo | Storm | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 300CE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 300SE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 300SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 400E | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 400SE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 500E | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 500SEL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 500SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Mercedes-Benz | 600SEL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1992 | Saab | 900 | — | N/A | Double Platinum |
| 1992 | Toyota | Cressida | — | N/A | Double Platinum |
| 1992 | Toyota | Supra | — | N/A | Double Platinum |
| 1991 | Acura | Integra | — | N/A | Double Platinum |
| 1991 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1991 | BMW | 850i | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1991 | Honda | CRX | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1991 | Mercedes-Benz | 300SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1991 | Mercedes-Benz | 500SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1991 | Saab | 900 | — | N/A | Double Platinum |
| 1991 | Toyota | Camry | — | N/A | Double Platinum |
| 1991 | Toyota | Cressida | — | N/A | Double Platinum |
| 1991 | Toyota | Supra | — | N/A | Double Platinum |
| 1990 | Acura | Integra | — | N/A | Double Platinum |
| 1990 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Cadillac | Brougham | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Chevrolet | Caprice | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Honda | CRX | HF | N/A | Double Platinum |
| 1990 | Honda | Prelude | — | N/A | Double Platinum |
| 1990 | Mercedes-Benz | 300CE | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Mercedes-Benz | 300SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Mercedes-Benz | 500SL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Nissan | Pulsar NX | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Nissan | Sentra | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Saab | 9000 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1990 | Toyota | Camry | — | N/A | Double Platinum |
| 1990 | Toyota | Cressida | — | N/A | Double Platinum |
| 1990 | Toyota | Supra | — | N/A | Double Platinum |
| 1989 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Buick | LeSabre | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Cadillac | Brougham | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Chevrolet | Caprice | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Ford | Taurus | — | N/A | Double Platinum |
| 1989 | Geo | Prizm | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Honda | CRX | HF | N/A | Double Platinum |
| 1989 | Honda | Prelude | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Nissan | D21 | — | N/A | Double Platinum |
| 1989 | Nissan | Pathfinder | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Nissan | Pulsar NX | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Nissan | Sentra | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Oldsmobile | Cutlass Calais | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Pontiac | Grand Am | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Pontiac | Safari | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1989 | Saab | 9000 | — | N/A | Double Platinum |
| 1989 | Toyota | Camry | — | N/A | Double Platinum |
| 1989 | Toyota | Celica | — | N/A | Double Platinum |
| 1989 | Toyota | Corolla | — | N/A | Double Platinum |
| 1989 | Toyota | Cressida | — | N/A | Double Platinum |
| 1989 | Toyota | MR2 | — | N/A | Double Platinum |
| 1989 | Toyota | Supra | — | N/A | Double Platinum |
| 1988 | BMW | 750iL | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Buick | LeSabre | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Cadillac | Brougham | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Chevrolet | Caprice | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Chevrolet | Nova | — | N/A | Double Platinum |
| 1988 | Honda | CRX | HF | N/A | Double Platinum |
| 1988 | Honda | Prelude | 2.0 Si 4WS | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Honda | Prelude | 2.0 S | N/A | Double Platinum |
| 1988 | Nissan | 200SX | — | N/A | Double Platinum |
| 1988 | Nissan | D21 | — | N/A | Double Platinum |
| 1988 | Nissan | Pathfinder | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Oldsmobile | Cutlass Calais | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Oldsmobile | Cutlass Supreme | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Pontiac | Grand Am | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Pontiac | Safari | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1988 | Toyota | Camry | — | N/A | Double Platinum |
| 1988 | Toyota | Celica | — | N/A | Double Platinum |
| 1988 | Toyota | Corolla | SR5 | N/A | Double Platinum |
| 1988 | Toyota | Corolla | SR5 All Trac | N/A | Double Platinum |
| 1988 | Toyota | Corolla | LE | N/A | Double Platinum |
| 1988 | Toyota | Corolla | GTS | N/A | Double Platinum |
| 1988 | Toyota | Corolla | FX16 | N/A | Double Platinum |
| 1988 | Toyota | Corolla | FX16 GTS | N/A | Double Platinum |
| 1988 | Toyota | Corolla | DLX | N/A | Double Platinum |
| 1988 | Toyota | Corolla | DLX All Trac | N/A | Double Platinum |
| 1988 | Toyota | MR2 | — | N/A | Double Platinum |
| 1988 | Toyota | Supra | — | N/A | Double Platinum |
| 1987 | Buick | Regal | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Cadillac | Brougham | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Chevrolet | Caprice | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Nissan | 200SX | — | N/A | Double Platinum |
| 1987 | Nissan | D21 | — | N/A | Double Platinum |
| 1987 | Nissan | Pathfinder | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Oldsmobile | Calais | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Oldsmobile | Cutlass Salon | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Oldsmobile | Cutlass Supreme | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Pontiac | Firebird | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Pontiac | Safari | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1987 | Toyota | Camry | — | N/A | Double Platinum |
| 1987 | Toyota | Celica | — | N/A | Double Platinum |
| 1987 | Toyota | Corolla | — | N/A | Double Platinum |
| 1987 | Toyota | MR2 | — | N/A | Double Platinum |
| 1987 | Toyota | Supra | — | N/A | Double Platinum |
| 1986 | Buick | LeSabre | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Buick | Regal | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Cadillac | Fleetwood | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Chevrolet | Caprice | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Nissan | 200SX | — | N/A | Double Platinum |
| 1986 | Nissan | D21 | — | N/A | Double Platinum |
| 1986 | Oldsmobile | Cutlass Salon | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Oldsmobile | Cutlass Supreme | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Pontiac | Parisienne | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1986 | Toyota | Celica | — | N/A | Double Platinum |
| 1986 | Toyota | Corolla | — | N/A | Double Platinum |
| 1986 | Toyota | MR2 | — | N/A | Double Platinum |
| 1986 | Toyota | Supra | — | N/A | Double Platinum |
| 1985 | Buick | LeSabre | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1985 | Buick | Riviera | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1985 | Nissan | 200SX | — | N/A | Double Platinum |
| 1985 | Oldsmobile | Cutlass Salon | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1985 | Oldsmobile | Cutlass Supreme | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1985 | Oldsmobile | Delta 88 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1985 | Oldsmobile | Toronado | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1985 | Toyota | Corolla | — | N/A | Double Platinum |
| 1985 | Toyota | MR2 | — | N/A | Double Platinum |
| 1984 | Nissan | 200SX | — | N/A | Double Platinum |
| 1982 | Mercury | LN7 | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
| 1981 | Mercury | Lynx | — | N/A | Platinum spark plug with long life, taper tip, and patented U-groove design; Double Platinum |
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