Upgrade your Harley Davidson engine with KPMI® Red 100% Viton valve stem seals, engineered for superior performance and durability.

Designed for optimal fitment and maximum lift, these seals are resistant to high temperatures, petroleum products, and corrosive gasses produced during combustion.

The advanced Viton material ensures these seals maintain their integrity, preventing oil leakage into the combustion chamber, which could cause detonation, carbon build-up, and power loss.

Perfect for Evolution, Sportster, and Twin Cam models, these seals are the trusted choice for racers and riders seeking reliable performance.

Features:

• Constructed from 100% Red Viton for exceptional durability.
• Resists high temperatures, petroleum products, and corrosive combustion gases.
• Prevents oil leaks, detonation, and carbon build-up for enhanced engine performance.
• Designed for optimal fitment and maximum lift applications.
• Retains sealing ability under extreme conditions.
• Sold in packs of 4, as required for specific Harley Davidson applications.

Item Specifics:

• Brand: KPMI
• SKU: 71010-4
• Type: Intake/Exhaust Valve Stem Seal
• Material: Red Viton®
• Stem Diameter: 5/16"
• Seal O.D.: 0.566"
• Overall Length: 0.412"
• OEM Reference P/N: 35178930
• Package Quantity: Pack of 4

Fitment Table:

Note: Ensure proper fitment by verifying the valve guide dimensions match the provided specifications. Refer to the included diagram and measurements for precise compatibility.

Upgrade your Harley Davidson today with KPMI® Red Viton valve stem seals, the racer's choice for superior performance and reliability. Order now!