Cometic C9688-HB-040-020 HD EVO Stock Bore MLS Head Gasket Set .040" Head .020" Base

The Cometic C9688-HB-040-020 is a premium Multi-Layer Steel (MLS) gasket kit designed specifically for Harley-Davidson Evolution engines with stock bore dimensions. This heavy-duty gasket set includes a .040" MLS head gasket and a .020" base gasket, engineered to provide superior sealing performance under high compression and extreme temperatures.

Key Features:

• Multi-Layer Steel (MLS) construction for maximum durability and heat resistance
• .040" thick MLS head gasket designed for stock bore Evolution engines
• .020" thick base gasket included for complete top-end sealing
• Heavy-duty design withstands high compression and performance applications
• Precision-engineered fitment for Harley-Davidson Evolution V-Twin engines
• Superior sealing technology prevents leaks and blowouts
• Eliminates the need for additional sealants or gasket dressing

Cometic gaskets are manufactured using state-of-the-art materials and processes, making them the preferred choice for both OEM replacement and high-performance engine builds. The MLS construction features multiple layers of stainless steel with strategically placed embossments that provide even clamping pressure and exceptional recovery characteristics.