- 4-stroke kits contain header gasket
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2002-2004 | Arctic Cat | 90 2x4 | |
| 2005 | Arctic Cat | 90 2x4 4 Stroke | |
| 2002-2006 | Bombardier | DS50 | |
| 2002-2006 | Bombardier | DS90 | |
| 2003 | Bombardier | Quest 50 | |
| 2013-2020 | Honda | CRF110F | |
| 2014-2021 | Honda | CRF125F | |
| 2017 | Honda | CRF125F Big Wheel | |
| 2014-2016 | Honda | CRF125FB Big Wheel | |
| 2018-2021 | Honda | CRF125FB Big Wheel | |
| 2004-2009 | Honda | CRF50F | |
| 2011-2022 | Honda | CRF50F | |
| 2004-2009 | Honda | CRF70F | |
| 2011-2012 | Honda | CRF70F | |
| 1980-1986 | Honda | CT110 Trail | |
| 1970-1980 | Honda | CT70 Trail | |
| 1982 | Honda | CT70 Trail | |
| 1991-1994 | Honda | CT70 Trail | |
| 1971 | Honda | SL70 Motosport 70 | |
| 1973 | Honda | SL70 Motosport 70 | |
| 1993-2006 | Honda | Sportrax 90 TRX90 2x4 | |
| 2016-2020 | Honda | TRX90X | |
| 2009 | Honda | TRX90X 2x4 | |
| 2012-2015 | Honda | TRX90X 2x4 | |
| 1976 | Honda | XL70 | |
| 2000-2003 | Honda | XR50R | |
| 1997-2003 | Honda | XR70R | |
| 1972-1978 | Honda | Z50A Mini Trail | |
| 1979-1989 | Honda | Z50R | |
| 1991-1999 | Honda | Z50R | |
| 2016-2020 | Polaris | Outlaw 110 EFI | |
| 2008-2019 | Polaris | Outlaw 50 | |
| 2007-2014 | Polaris | Outlaw 90 | |
| 2004-2007 | Polaris | Predator 50 | |
| 2003-2006 | Polaris | Predator 90 | |
| 2009-2013 | Polaris | RZR 170 | |
| 2017-2020 | Polaris | RZR 170 EFI | |
| 2001-2003 | Polaris | Scrambler 50 | |
| 2001-2003 | Polaris | Scrambler 90 | |
| 2016-2020 | Polaris | Sportsman 110 EFI | |
| 2001-2014 | Polaris | Sportsman 90 | |
| 2019-2020 | Yamaha | Grizzly 90 YFM90 | |
| 2016-2020 | Yamaha | Raptor 90 YFM90 | |