Description
Features
- Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance and longevity of the spark plug
- Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression
- Patented Ultraseal coated shell for rust prevention
- Made in the USA
| Position | Notes | |||
|---|---|---|---|---|
| 1983-1985 | Harley-Davidson | XLX 1000 | - | - |
| 1979-1985 | Harley-Davidson | XLH1000 | - | - |
| 1979-1985 | Harley-Davidson | XLS Roadster | - | - |
| 1983-1984 | Harley-Davidson | XR1000 | - | - |
| 1979 | Harley-Davidson | XLCH | - | - |
| 2001-2002 | Aprilia | SR 50 | - | - |
| 1992-1998 | Aprilia | Amico 50 | - | - |
