Gaskets and Seals

Includes all required gaskets and O-rings for both rocker boxes

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...

Top End Gasket Kit - Yamaha 8100025 Yamaha -- YZ 250 F -- (2020, 2024, 2021, 2023, 2019, 2022); Yamaha -- YZ 250 FX -- (2022, 2020, 2021, 2023, 2024); Yamaha -- WR 250 F -- (2020, 2021, 2023, 2022, 2024)

Top End Gasket Kit - Kawasaki 810469 Kawasaki -- KX 450 F -- (2006, 2008, 2007); Kawasaki -- KLX 450 R -- (2008, 2009)

Made in the U.S.A.

James Gasket Upper Rocker Cover Cork Gasket - Big Twin Jgi-17356-84

James Gasket Lower Rocker Cork - Xl Jgi-17353-86 Harley-Davidson -- 883 Deluxe XLH -- (1989, 1986, 1988, 1987, 1990); Harley-Davidson -- Sportster 883 XLH -- (1987, 1989, 1990, 1988, 1986); Harley-Davidson -- Sportster 1100 XLH -- (1986, 1987);...

James Gasket Upper Rocker Cork - Xl Jgi-17354-86

Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Kits do not...

Top End Gasket Kit - Yamaha 810687 Yamaha -- WR 450 F -- (2013, 2010, 2009, 2011, 2012, 2014, 2007, 2008, 2015); Yamaha -- YZ 450 F -- (2006, 2007, 2008, 2009)

James Gasket Lower Rocker Cover - Xl Jgi-17353-86-A

Top End Gasket Kit - Honda 810262 Honda -- CRF250R -- (2006, 2005, 2007, 2004); Honda -- CRF250X -- (2014, 2015, 2004, 2006, 2012, 2011, 2016, 2005, 2008, 2009, 2010, 2013, 2007, 2017)