Cometic C10034-030-B-020RC HD Twin Cam Head Gasket Bore Thickness - 3.937 030

The Cometic C10034-030-B-020RC is a heavy-duty Multi-Layer Steel (MLS) head gasket designed for 2002 and newer Harley-Davidson Twin Cam engines. This premium gasket features a 3.937-inch bore diameter with top and edge (T/E) construction and incorporates updated hat-style valve seals for improved sealing performance.

Key Features:

• Multi-Layer Steel construction with .030-inch compressed thickness for enhanced durability
• 3.937-inch bore diameter optimized for Twin Cam applications
• Top and edge (T/E) design provides superior combustion sealing
• Updated hat-style valve seals (Part #020RC) improve oil control and longevity
• Precision-engineered for 2002 and newer HD Twin Cam engines
• Exceeds OEM specifications for high-performance and rebuilt engines

Cometic MLS head gaskets utilize multiple layers of stainless steel with advanced coating technology to maintain seal integrity under extreme temperatures and pressures. The .030-inch thickness makes this gasket ideal for stock to mild performance applications, engine rebuilds, or when resurfacing has been performed. The integrated hat-style valve seals eliminate the need for separate seal installation, streamlining assembly and ensuring proper valve stem sealing.