Today's lightweight engines are producing more horsepower, higher cylinder pressures, clamp loads and extreme temperatures. Our commitment is to provide innovative, quality gaskets while maximizing your engine's power and performance. Cometic's gaskets are proudly made in the USA with materials manufactured on American soil. We are constantly updating and adding models to our ever growing library of gaskets for Powersports, Street Bikes, Snowmobiles, Harley-Davidson and V-Twin applications.
All of Cometic's gaskets and seals have been tested on both the street and the track as well as vigorous Dyno shakedowns
Yamaha 2007-2015 WR450F, 2009+ YFZ450R, 2006-2009 YZ450F Top End Gasket Kit, 98mm Bore, .023" MLS Cylinder Head Gasket
Cometic utlizes their in-house dynamometersand engine assembly rooms to ensure quality and reliability
Yamaha 2007-2015 WR450F, 2009+ YFZ450R, 2006-2009 YZ450F Top End Gasket Kit
Cometic 06-09 Yamaha YZ450F/07-15 WR450/09-23 YFZ450R Top End Kit 98MM
Yama WR450F/YFZ450R/YZ450F Top End Kit
High Performance Gasket Kits
98mm Top End Gasket Kit
Top End Gasket Kit
Engine Top End Kit