- Superior construction for serious power
- Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot
- Features high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life
Fits:
| 1999-2003 | ATK | 50 MX | - | - |
| 1998 | Italjet | Dragster 50 | - | - |
| 1998 | Atala | Carosello 50 | - | - |
| 1997-1998 | Italjet | Formula 125 | - | - |
| 1990 | Ducati | 750 SS | - | - |
| 1984-1987, 1992-1994 | Ski-Doo | Safari 370 | - | - |
| 1981-1983 | Ski-Doo | Nordic 370 | - | - |
| 1980-1983 | Ducati | 500 Pantah | - | - |
| 1980 | Ducati | SD 900 | - | - |
| 1979-1981 | Kawasaki | KM 100 | - | - |
| 1978-1982, 1995-2000, 2003-2005 | Yamaha | MX 80 | - | - |
| 1978-1980 | Ducati | Sport 500 | - | - |
| 1976-1982 | Kawasaki | KV 100 | - | - |
| 1976-1978 | Kawasaki | KM 90 | - | - |
| 1976-1978 | Ducati | 500 GTL | - | - |
| 1976 | Yamaha | LB 80 2H Chappy | - | - |
| 1975 | Kawasaki | KT 250 | - | - |
| 1974-1996 | Ski-Doo | Elan 250 Deluxe w/bogies | - | - |
| 1974-1996 | Ski-Doo | Elan 250 Deluxe w/Slides | - | - |
| 1974-1984 | Yamaha | DT 80 | - | - |
| 1974-1977 | Yamaha | TY 80 | - | - |
| 1974-1976 | Yamaha | RD 200 | - | - |
| 1974, 1984-2017 | Suzuki | XR 400 | - | - |
| 1974 | Suzuki | Nomad 292 | - | - |
| 1973-1996 | Ski-Doo | Elan 250T | - | - |
| 1973-1996 | Ski-Doo | Elan 250M | - | - |
| 1973-1977 | Suzuki | RV 125 Tracker | - | - |
| 1973-1976 | Suzuki | GT 185 Adventurer | - | - |
| 1973-1976 | Suzuki | GT 500 Titan | - | - |
| 1973-1975 | Suzuki | TS 125 Duster | - | - |
| 1970-1975 | Kawasaki | KD 100 M | - | - |
| 1969-1982 | Ski-Doo | Alpine 640ER | - | - |
| 1969-1973 | Ski-Doo | TNT 340 SS F/A w/Cleated Track | - | - |
| 1969, 1982-1983 | Ski-Doo | Nordic 371 | - | - |
| 1969 | Ski-Doo | Nordic 371 E | - | - |
| 1968-1972 | Triumph | TR6 | - | - |
| 1968-1969 | Ski-Doo | Olympic 370 | - | - |
| 1968 | Ski-Doo | Super Olympic 370E | - | - |
| 1968 | Ski-Doo | Super Olympic 370 | - | - |
| 1967-1969 | Ski-Doo | Alpine 370E | - | - |
| 1967, 1969, 1975-1977, 1980-1983, 1985-1987 | Ski-Doo | Alpine 370 |