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Champion
Copper PlusChampion 431 Spark Plug
| Brand | Champion 431 |
|---|---|
| Center Electrode Tip Material | Nickel |
| Classification | Champion Copper Plus |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| Insulator Height | 0.06 |
| Manufacturer Heat Range | 14 |
| Plug Type | RC14YC |
| Pre-Gap Size | 0.035 |
| Pre-Gap Size | 0.90 |
| Reach | 0.75 |
| Resistor Type | Yes |
| Seat Type | Flat |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
| Product line | Copper Plus |
| Fits | Argo, John Deere, Saturn, Bentley, Rolls-Royce, Oldsmobile, Chevrolet, Ford, Lincoln, and Mercury · 96 vehicles |
Copper core electrode. Improves conductivity and heat control for dependable performance.
Nickel electrode materials. Supports good overall wear in everyday use.
Champion Copper Plus. A proven spark plug line with dependable performance.
Cross-references Airtex Fuel Pumps 41618, AMS Automotive 4421 and Autolite 3926 for the same application. See all 23.
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Champion Copper Plus 431 Spark Plug
Champion Copper Plus 431 is a copper-core spark plug built for dependable ignition performance and steady heat control. Its nickel center and ground electrode materials support consistent conductivity for everyday driving, while the resistor design helps maintain stable operation in secondary ignition systems.
Key Features
- Copper core electrode for improved conductivity and heat control
- Nickel center electrode tip and nickel ground electrode core material
- Pre-gapped at 0.035 in / 0.90 mm
- Resistor type spark plug for controlled ignition performance
- Flat seat design with 0.75 in reach and 14 mm thread diameter
- Hex size 0.625 in / 15.880 mm with non-removable nut terminal
- Champion Copper Plus classification, plug type RC14YC
Product Details
The Champion Copper Plus line focuses on practical, OE-style ignition service with a copper core that helps transfer heat efficiently and maintain consistent spark delivery. Part number 431 is specified as RC14YC and is listed across a wide range of applications, including Saturn SC1, Saturn SL, Saturn SL1, and Saturn SW1, along with select Chevrolet Camaro and Chevrolet Corvette models. It also appears in fitment for older Ford, Lincoln, Mercury, Oldsmobile, Bentley, and Rolls-Royce applications where the RC14YC specification is required.
This part cross-references Autolite 3926 and DENSO Auto Parts 5092 for the same application.
Common Issues This Spark Plug Can Address
- Rough idle caused by worn or inconsistent spark plugs
- Hard starting related to weak secondary ignition performance
- Misfire conditions from excessive plug wear or incorrect gap
- Reduced throttle response from degraded spark delivery
- Heat control concerns in engines specified for RC14YC plugs
Installation Notes and Fitment
Verify the required plug type, seat style, thread diameter, reach, and gap before installation. Champion 431 is listed with a 0.035 in pre-gap, while many fitments note OE gap requirements such as 0.040 in or 0.044 in; always confirm the engine specification for the vehicle being serviced. Compatible fitment examples include Fits 1993-2002 Saturn SC1, N/A; Fits 1991-2002 Saturn SL, N/A; Fits 1989-1992 Chevrolet Camaro, N/A; and Fits 1988-1990 Chevrolet Corvette, N/A. Additional fitment coverage includes Fits 1981 Ford Escort, N/A and Fits 1982 Mercury Cougar, N/A.
For Saturn SC1, Saturn SL, and Saturn SL1 service, confirm the RC14YC plug type and the specified gap before installation. On Chevrolet Camaro and Chevrolet Corvette applications, note the aluminum-head fitment details listed in the vehicle notes.
Quality Assurance
Champion Copper Plus spark plugs are built around a copper-core design for dependable conductivity and heat management in routine ignition service. Part number 431 is cataloged to match the RC14YC specification across the listed vehicle applications.
This part fits 96 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2002 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2002 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2002 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2001 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2001 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2001 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2000 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2000 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 2000 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1999 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1999 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1999 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1999 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Bentley | Azure | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Bentley | Brooklands | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Bentley | Continental | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Bentley | Turbo R | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Rolls-Royce | Silver Spur | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1998 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Bentley | Azure | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Bentley | Brooklands | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Bentley | Continental | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Bentley | Turbo R | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Rolls-Royce | Silver Dawn | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Rolls-Royce | Silver Spur | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1997 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Bentley | Azure | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Bentley | Brooklands | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Bentley | Continental | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Bentley | Turbo R | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Rolls-Royce | Silver Dawn | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Rolls-Royce | Silver Spur | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1996 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Bentley | Brooklands | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Bentley | Continental | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Bentley | Turbo R | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Rolls-Royce | Corniche IV | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Rolls-Royce | Corniche S | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Rolls-Royce | Flying Spur | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Rolls-Royce | Silver Dawn | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Rolls-Royce | Silver Spirit | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Rolls-Royce | Silver Spur | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1995 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Bentley | Brooklands | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Bentley | Continental | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Bentley | Turbo R | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Oldsmobile | Achieva | 2.3L | L4 | N/A | OE Type; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Rolls-Royce | Corniche IV | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Rolls-Royce | Silver Spirit | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Rolls-Royce | Silver Spur | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Rolls-Royce | Touring Limousine | 6.8L | V8 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1994 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1993 | Bentley | Brooklands | 6.8L | V8 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1993 | Oldsmobile | Achieva | 2.3L | L4 | N/A | OE Type; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1993 | Saturn | SC1 | 1.9L | L4 | N/A | Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1993 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1993 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1993 | Saturn | SW1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1992 | Chevrolet | Camaro | 5.7L | V8 | N/A | with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1992 | Oldsmobile | Achieva | 2.3L | L4 | N/A | OE Type; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1992 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1992 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1991 | Chevrolet | Camaro | 5.7L | V8 | N/A | with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1991 | Chevrolet | Corvette | 5.7L | V8 | N/A | with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1991 | Saturn | SL | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1991 | Saturn | SL1 | 1.9L | L4 | N/A | OE Type; Gap 0.040 (in); Plug Type Number RC14YC; Copper Plus |
| 1990 | Chevrolet | Camaro | 5.7L | V8 | N/A | with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1990 | Chevrolet | Corvette | 5.7L | V8 | N/A | OE Type; with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1989 | Chevrolet | Camaro | 5.7L | V8 | N/A | with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1989 | Chevrolet | Corvette | 5.7L | V8 | N/A | OE Type; with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1988 | Chevrolet | Camaro | 5.7L | V8 | N/A | OE Type; with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1988 | Chevrolet | Corvette | 5.7L | V8 | N/A | OE Type; with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1987 | Chevrolet | Camaro | 5.7L | V8 | N/A | OE Type; with Aluminum Head; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1987 | Oldsmobile | Calais | 2.3L | L4 | N/A | OE Type; Gap 0.035 (in); Plug Type Number RC14YC; Copper Plus |
| 1982 | Ford | F-100 | 3.8L | V6 | N/A | OE Type; Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| 1982 | Ford | Thunderbird | 3.8L | V6 | N/A | OE Type; Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| 1982 | Lincoln | Continental | 3.8L | V6 | N/A | Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| 1982 | Mercury | Cougar | 3.8L | V6 | N/A | OE Type; Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| 1982 | Mercury | LN7 | 1.6L | L4 | N/A | Flat Seat; OE Type; Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| 1981 | Ford | Escort | 1.6L | L4 | N/A | Flat Seat; OE Type; Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| 1981 | Mercury | Lynx | 1.6L | L4 | N/A | Flat Seat; OE Type; Gap 0.044 (in); Plug Type Number RC14YC; Copper Plus |
| No rows match your filter. | ||||||
Directly replaces or cross-references 23 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Airtex Fuel Pumps — 41618AMS Automotive — 4421Autolite — 3926BBB Industries — 11299CSF — 3927DENSO Auto Parts — 5092Walker Exhaust — 4183148704160341629496018496018S66132016613201SBKR4EBKR4EVXFR4LSFR4LSJFR5FR5LMFR5LSK5RTVRC14YC