Viton Valve Stem Seals MINI R53 | R52 | R50 | Cooper | Cooper S | JCW

New Viton valve stem seals for a reliable, leak-free seal between the valve stem and the valve guide.

Set contains 8 pieces, 16 required per cylinder head. Order 2 sets for a complete installation.

Produced from Viton rubber, offering superior resistance to heat, oil, and fuel.

Supertech valve train components are engineered for high-performance racing applications, combining over 30 years of experience. Their valves are crafted from premium materials, undergoing precision CNC machining, specialized heat treatments, and advanced coatings. These processes enhance strength, reduce friction, and improve heat resistance, ensuring durability under extreme conditions.