Engle Valve Collet Set

This heavy duty valve cotter set from ENGLE is designed for use on all aircooled Volkswagen engines fitted with 8mm stem valves, making it suitable for both standard rebuilds and high-performance applications. Valve cotters (also known as valve keepers or collets) are a critical component of the valvetrain, locking the valve spring retainer securely onto the valve stem and ensuring consistent, reliable valve operation.

Manufactured to ENGLE’s high standards, these cotters are made for strength, accuracy, and long-term durability. Their precision-machined profile ensures a positive, secure fit between the valve stem and retainer, reducing the risk of slippage or failure under high spring pressures and elevated engine speeds. This makes them especially well suited to engines running heavy duty single or dual valve springs, performance camshafts, and higher RPM limits.

Correctly fitting valve cotters is essential for maintaining valve control and preventing catastrophic valvetrain failure. These heavy duty ENGLE cotters provide peace of mind in both road and competition engines by delivering reliable retention and consistent engagement with the valve stem grooves.

Supplied as a 16-piece set, this kit provides enough cotters to fully assemble one complete aircooled VW engine using 8mm stem valves.

Fitting Notes & Compatibility

• Fits all aircooled VW engines with 8mm valve stem valves

• Suitable for Type 1, Type 2, Type 3 and Type 4 aircooled engines (with 8mm stems)

• Compatible with standard and performance valve spring retainers

• Ideal for use with heavy duty or dual valve springs

• Always inspect for correct seating during assembly