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Champion 808 Spark Plug
| Brand | Champion 808 |
|---|---|
| Center Electrode Diameter (Inch) | 0.078 |
| 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 | 0.625 |
| Hex Size | 15.880 |
| Hex Type | Hex |
| Installed Height (Inch) | 1.99 |
| Insulator Height | 0.03 |
| Insulator Projection (Inch) | 0.03 |
| Manufacturer Heat Range | 9 |
| Plug Type | Z9Y |
| Pre-Gap Size | 0.025 |
| Pre-Gap Size | 0.65 |
| Reach | 0.5 |
| Resistor Type | No |
| Seat Type | Flat |
| Taper Diameter (Inch) | 0.22 |
| Thread Diameter | 0.394 |
| Thread Diameter | 10.000 |
| Product line | Copper Plus |
| Fits | Honda, Yamaha, Can-Am, Polaris, Kawasaki, Bristol, Lagonda, Frazer Nash, and Aston Martin |
Copper core electrode. Improves conductivity and heat control for steady wear.
Nickel electrode materials. Built with nickel and nickel-copper alloy for reliable spark delivery.
Champion Copper Plus. Dependable performance from Champion's Copper Plus line.
Cross-references Airtex Fuel Pumps 4008, AMS Automotive 4002 and AMS Automotive 4004 for the same application. See all 61.
Champion Copper Plus 808 Spark Plug
Champion Copper Plus 808 is a small engine spark plug built for dependable ignition performance and steady heat control. Its copper core electrode improves conductivity, while nickel-based electrode materials support consistent wear characteristics in secondary ignition service.
Key Features
- Copper core electrode for improved conductivity and heat management
- Nickel center electrode tip and nickel ground electrode core material
- Flat seat design with a 0.5 in. reach and 10 mm thread diameter
- Pre-gapped to 0.025 in. / 0.65 mm for setup convenience
- Non-resistor design with removable nut terminal
- Champion Copper Plus small engine classification
Product Details
The Champion Copper Plus line focuses on straightforward ignition performance with a copper core that helps transfer heat efficiently from the firing end. Part number 808 uses nickel electrode materials and a flat-seat configuration, making it a practical choice for small engine ignition systems that call for this plug type. If you are searching for Champion 808 spark plug replacement options or a Champion Copper Plus 808 cross reference, this part is built around the same core specifications used in many small engine applications. It also cross-references NGK 4549 for the same application.
Common Issues This Spark Plug Can Address
- Hard starting caused by worn or fouled spark plugs
- Weak ignition output from degraded electrode surfaces
- Rough running linked to inconsistent spark delivery
- Misfire symptoms in small engine ignition systems
- Heat-related plug wear from extended service intervals
Installation Notes and Tips
Verify thread diameter, reach, seat type, and heat range before installation. Champion 808 uses a 10 mm thread, 0.5 in. reach, flat seat, and removable nut terminal, so it should be matched carefully to the engine specification. Check the pre-gap before installation and confirm the ignition system calls for a non-resistor plug. For fitment-based searches, this part is commonly researched as a Champion 808 spark plug for small engine applications and as a Champion Copper Plus 808 replacement.
Quality Assurance
Champion is a long-established ignition brand, and the Copper Plus line is built around copper-core construction for controlled heat transfer and consistent service life in the specified application.
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