The RCM Billet Half Moon seals (also known as cylinder head plugs) have been specifically designed to replace the problematic OE plastic seals which become hardened and brittle with the constant temperature changes, eventually leaking and requiring replacement again.
Manufactured from high grade aluminium, these RCM engraved replacements will not suffer from these issues. This simple, quality part will ensure that leaks on the rear of your cylinder heads become a thing of the past.
- All EJ20, EJ22 and EJ25 Turbo Engines
