Ishino JF-36420-1 Valve Stem Seal

The Ishino JF-36420-1 is a precision-engineered valve stem seal designed to prevent oil from entering the combustion chamber through the valve guide. This critical engine component ensures proper valve lubrication while maintaining optimal compression and preventing excessive oil consumption.

Key Features:

• High-temperature resistant seal material for durability under extreme engine conditions
• Precision-molded construction ensures proper fit and consistent sealing performance
• Prevents oil leakage past valve stems into the combustion chamber
• Helps maintain proper engine compression and reduces blue exhaust smoke
• OEM-quality replacement part manufactured to strict specifications

Ishino is a trusted manufacturer of engine seals and gaskets, providing reliable replacement parts for engine rebuilds and valve train service. Valve stem seals should be replaced whenever cylinder heads are removed or during valve guide service to ensure optimal engine performance and prevent oil consumption issues.