Cometic 14-21 Sherco SEF-R300 85mm Bore Top End Gasket Kit - C3748

The Cometic 14-21 Sherco SEF-R300 85mm Bore Top End Gasket Kit - C3748 is a precision-engineered gasket kit designed for a 85mm bore.

This Cometic complete gasket kit delivers a comprehensive, precision-matched set of seals and gaskets engineered to OE or better specifications. Each component is manufactured from materials specifically chosen for their temperature range, chemical resistance, and compressibility — ensuring every sealing surface in your engine is properly protected during rebuild or performance upgrades.

• Bore Size: 85mm
• Part Number: C3748