Cometic C9653 Heavy Duty Rocker Box Gasket Kit for Harley-Davidson 1340 Evolution Big Twin 1986-1991

The Cometic C9653 is a premium heavy-duty rocker box gasket kit engineered specifically for Harley-Davidson 1340cc Evolution Big Twin engines from 1986-1991. This complete 4-piece kit features high-quality cork gaskets designed to provide superior sealing and durability in demanding conditions.

Key Features:

• Complete 4-piece rocker box gasket set for both cylinders
• Premium cork gasket material for excellent oil sealing and conformability
• Heavy-duty construction designed to withstand high temperatures and vibration
• Precision-cut to OEM specifications for proper fit and sealing
• Direct replacement for stock rocker box gaskets

Cometic Gasket is an industry leader in high-performance gasket manufacturing, utilizing advanced materials and precision manufacturing processes. This rocker box gasket kit is ideal for engine rebuilds, routine maintenance, or performance upgrades on Evolution Big Twin engines. Cork gaskets provide excellent sealing properties while maintaining flexibility to accommodate thermal expansion and engine movement.