Stage X Billet Aluminium High Temp Half Moon Seal

These billet half moon seals, also known as cylinder head plugs, are designed to replace the problematic OE plastic seals. The OE seals harden and become brittle with constant temperature changes, eventually leak and need replacing again.

Made from high-grade aluminium, these replacements do not suffer from this problem. They fit precisely and are sealed with liquid gasket, which puts an end to leaks at the rear of the cylinder heads.

A complete engine uses 4 half moon seals.