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Champion 803 Spark Plug
| Brand | Champion 803 |
|---|---|
| Center Electrode Diameter (Inch) | 0.1 |
| Center Electrode Tip Material | Nickel |
| Classification | Champion Copper Plus Small Engine |
| Electrical Terminal Type | Removable Nut |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Material | Nickel Copper Alloy |
| Ground Electrode Quantity | 1 |
| Hex Size | 0.813 |
| Hex Size | 20.650 |
| Hex Type | Hex |
| Installed Height (Inch) | 2.15 |
| Manufacturer Heat Range | 4 |
| Plug Type | N4C |
| Pre-Gap Size | 0.025 |
| Pre-Gap Size | 0.65 |
| Reach | 0.75 |
| Resistor Type | No |
| Seat Type | Flat |
| Taper Diameter (Inch) | 0.25 |
| Thread Diameter | 0.551 |
| Thread Diameter | 14.000 |
| Product line | Copper Plus |
| Fits | Suzuki, Yamaha, Volkswagen, Kawasaki, Beta, Renault, Bultaco, Polaris, Harley Davidson, Sno-Jet, NSU, Lancia, Alfa Romeo, Simca, Alvis, Fiat, Turner, BMW, Facel Vega, Lotus, Panhard, MG, and Mercedes-Benz · 8 vehicles |
Copper core electrode. Improves conductivity and heat control for more consistent wear.
Nickel center electrode. Supports dependable performance and steady ignition.
Flat seat design. Provides a secure, straightforward spark plug fit.
Cross-references Anchor 2615, Anchor 3051 and Anchor 3054 for the same application. See all 40.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Champion Copper Plus 803 Spark Plug
Champion Copper Plus 803 is a spark plug built for dependable ignition performance in small engine and automotive secondary ignition applications. It uses a copper core electrode for improved conductivity and heat control, with nickel center and ground electrode materials for steady wear characteristics.
Compatible with 1984-1991 Volkswagen Vanagon applications, this Champion spark plug is specified as a non-resistor, OE-type replacement with a 0.028 in gap note in the fitment data. The Champion Copper Plus line focuses on straightforward, serviceable ignition performance for engines that call for a conventional copper-core plug.
Key Features
- Part number 803
- Copper core electrode for conductivity and heat control
- Nickel center electrode tip and nickel ground electrode core material
- Non-resistor design
- Flat seat design with 0.75 in reach
- 14 mm thread diameter and 0.813 in hex size
- Pre-gapped at 0.025 in / 0.65 mm
- Removable nut terminal
Product Details
The Champion Copper Plus line is built around a copper-core design that helps manage spark plug temperature while maintaining consistent electrical transfer. For Volkswagen Vanagon owners searching for a Champion 803 spark plug or an OE-style replacement for 1984-1991 Volkswagen Vanagon ignition service, this plug matches the listed fitment and specifications, including a non-resistor configuration and flat seat construction. The plug type is N4C, with a manufacturer heat range of 4 and a 0.25 in taper diameter.
This part cross-references AP Exhaust 7310 for the same application.
Common Issues It Can Address
- Hard starting caused by worn or fouled spark plugs
- Misfire from weak or inconsistent spark delivery
- Rough idle related to aged ignition components
- Reduced throttle response from degraded plug performance
- Service replacement for a worn Champion 803 spark plug
Installation Notes and Tips
- Verify the plug type, thread diameter, reach, and seat style before installation.
- Check and set the gap to the vehicle specification; fitment notes list 0.028 in for the Volkswagen Vanagon application.
- Inspect ignition wires, cap, and rotor during spark plug service to avoid repeat misfire concerns.
- Use the removable nut terminal only if your ignition lead requires that terminal style.
Quality Assurance
Champion Copper Plus spark plugs are built to support consistent ignition performance with copper-core construction and nickel electrode materials. Part number 803 is listed with direct fitment for 1984-1991 Volkswagen Vanagon applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1990 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1989 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1988 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1987 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1986 | Volkswagen | Vanagon | 2.1L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1985 | Volkswagen | Vanagon | 1.9L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| 1984 | Volkswagen | Vanagon | 1.9L | H4 | N/A | Non-Resistor Type; OE Type; Gap 0.028 (in); Plug Type Number N4C; Copper Plus |
| No rows match your filter. | ||||||