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ChampionPart #: 20
Champion 20 Spark Plug
⚙️ 52 vehicles fit this part
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📦Copper Plus
🚗Fitment: Buick, Chevrolet, GMC, Isuzu, Oldsmobile, Pontiac, and Saturn, Cavalier, Century, Corsica, Cutlass Ciera, Cutlass Supreme, Grand Prix, Hombre, Lumina, Monte Carlo, S10, Sonoma, Sunfire, and Vue
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Champion Copper Plus Spark Plug 20
Champion Copper Plus spark plug Part Number 20 is built for dependable ignition performance with a copper core electrode that improves conductivity and heat control. It is a direct-fit style spark plug for a wide range of GM and Saturn applications, including Chevrolet Cavalier, Chevrolet S10, Pontiac Grand Prix, and Saturn Vue models listed below.
Copper Plus Product Line
The Champion Copper Plus line focuses on consistent spark delivery and stable operating temperatures for everyday driving. This plug uses nickel center and ground electrode tip materials, a tapered seat, a 0.050 pre-gap, and a resistor design to support reliable secondary ignition performance in the specified applications.
Key Features
- Copper core electrode for improved conductivity and heat control
- Nickel center electrode tip and nickel ground electrode core material
- Pre-gapped at 0.050 in. (1.29 mm)
- Resistor type spark plug
- Tapered seat design with 14 mm thread diameter and 0.689 in. reach
- Hex size: 0.625 in. (15.880 mm)
- Champion Copper Plus classification
- Part Number 20 / plug type RS13LYC5
Vehicle Fitment
- Fits 2010 Saturn Vue, N/A; Gap 0.044 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 2008-2009 Saturn Vue, N/A; Gap 0.040 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1995-1997 Chevrolet Cavalier, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1996-1997 Chevrolet S10, N/A; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1994-1997 GMC Sonoma, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1996-1997 Isuzu Hombre, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1995-1997 Pontiac Sunfire, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1994-1996 Buick Century, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1995-1996 Chevrolet Corsica, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1994-1996 Oldsmobile Cutlass Ciera, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1995 Chevrolet Monte Carlo, N/A; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1994-1995 Chevrolet S10, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1991-1995 Oldsmobile Cutlass Supreme, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1991-1995 Pontiac Grand Prix, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1988-1989 Pontiac Grand Prix, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1994 Chevrolet Cavalier, N/A; OE Type; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1994 Chevrolet Corsica, N/A; OE Type; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1993 Buick Century, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1992-1993 Chevrolet Cavalier, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1992-1993 Chevrolet Corsica, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1993 Chevrolet Lumina, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1993 Oldsmobile Cutlass Ciera, N/A; OE Type; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1993 Oldsmobile Cutlass Supreme, N/A; OE Type; Gap 0.060 in.; Plug Type Number RS13LYC5; Copper Plus
- Fits 1989-1990 Pontiac Grand Prix, N/A; Gap 0.045 in.; Plug Type Number RS13LYC5; Copper Plus
This part cross-references Carlson 7981 for the same application.
What It Helps Address
- Hard starting caused by worn spark plug electrodes
- Misfire conditions related to weak or inconsistent spark
- Rough idle from degraded ignition performance
- Reduced throttle response from aged secondary ignition components
- Maintenance replacement for vehicles calling for Champion RS13LYC5 / Part Number 20
Installation Notes and Tips
Verify the required gap and plug type before installation, since listed applications include different gap specifications by vehicle. Confirm the tapered seat design, 14 mm thread diameter, 0.689 in. reach, and hex size match the cylinder head requirements for your Chevrolet Cavalier, Chevrolet S10, Pontiac Grand Prix, Saturn Vue, or other listed application. Use the vehicle-specific service procedure and torque specification when installing spark plugs.
Quality Assurance
Champion Copper Plus spark plugs are built around a copper core electrode for conductivity and heat control, with nickel electrode materials and a resistor design for stable ignition performance in the listed fitments. Part Number 20 is identified as plug type RS13LYC5 and is cataloged for the applications shown above.
| Brand | Champion |
| Part Number | 20 |
| Position | Copper Plus |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Non-removable nut |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.050 |
| Pre-Gap Size | 1.29 |
| Ground Electrode Quantity | 1 |
| Insulator Height | 0.06 |
| Manufacturer Heat Range | 13 |
| Seat Type | Tapered |
| Reach | 0.689 |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
| Resistor Type | Yes |
| Hex Type | Hex |
| Classification | Champion copper plus |
| Hex Size | 0.625 |
| Hex Size | 15.880 |
| Plug Type | Rs13lyc5 |
This part fits 52 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Saturn | Vue | 3.5L | V6 | N/A | Gap 0.044 (in); Plug Type Number RS13LYC5; Copper Plus |
| 2009 | Saturn | Vue | 3.5L | V6 | N/A | Gap 0.040 (in); Plug Type Number RS13LYC5; Copper Plus |
| 2008 | Saturn | Vue | 3.5L | V6 | N/A | Gap 0.040 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1997 | Chevrolet | Cavalier | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1997 | Chevrolet | S10 | 2.2L | L4 | N/A | Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1997 | GMC | Sonoma | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1997 | Isuzu | Hombre | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1997 | Pontiac | Sunfire | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Buick | Century | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Chevrolet | Cavalier | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Chevrolet | Corsica | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Chevrolet | S10 | 2.2L | L4 | N/A | Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | GMC | Sonoma | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Isuzu | Hombre | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Oldsmobile | Cutlass Ciera | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1996 | Pontiac | Sunfire | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Buick | Century | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Chevrolet | Cavalier | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Chevrolet | Corsica | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Chevrolet | Monte Carlo | 3.1L | V6 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Chevrolet | S10 | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | GMC | Sonoma | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Oldsmobile | Cutlass Ciera | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Pontiac | Grand Prix | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1995 | Pontiac | Sunfire | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Buick | Century | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Chevrolet | Cavalier | 2.2L | L4 | N/A | OE Type; Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Chevrolet | Corsica | 2.2L | L4 | N/A | OE Type; Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Chevrolet | S10 | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | GMC | Sonoma | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Oldsmobile | Cutlass Ciera | 2.2L | L4 | N/A | Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1994 | Pontiac | Grand Prix | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Buick | Century | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Chevrolet | Cavalier | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Chevrolet | Corsica | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Chevrolet | Lumina | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Oldsmobile | Cutlass Ciera | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Oldsmobile | Cutlass Supreme | 3.1L | V6 | N/A | OE Type; Gap 0.060 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1993 | Pontiac | Grand Prix | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1992 | Chevrolet | Cavalier | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1992 | Chevrolet | Corsica | 2.2L | L4 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1992 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1992 | Pontiac | Grand Prix | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1991 | Oldsmobile | Cutlass Supreme | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1991 | Pontiac | Grand Prix | 3.4L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1990 | Pontiac | Grand Prix | 3.1L | V6 | N/A | Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1989 | Pontiac | Grand Prix | 2.8L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1989 | Pontiac | Grand Prix | 3.1L | V6 | N/A | Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
| 1988 | Pontiac | Grand Prix | 2.8L | V6 | N/A | OE Type; Gap 0.045 (in); Plug Type Number RS13LYC5; Copper Plus |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
7981HR9HCR44LTSMARS13LYCRS13LYC5TR42
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.