Cylinder Head Billet Half Moon Seal Black

Fuji Racing Half Moon Seals – Leak-Free for the Long Haul

Tired of oil leaks around your rocker covers? These Half Moon Seals are the fix that sticks. Found between the cylinder head and rocker cover on all EJ20 and EJ25 engines, factory half moon seals are prone to cracking and leaks over time — especially when changing rocker cover gaskets.

The Fuji Racing Half Moon Seals are CNC-machined from T6061 billet alloy for a snug, secure fit. Unlike the brittle factory plastic plugs, these are built to last and eliminate annoying oil leaks for good.

Direct Replacement For:

• Subaru Plug Cyl-Head 11051AA070 & 11051AA40

• RCM2728, RCM2616, IAG-ENG-2000 equivalents

Fits All EJ Engines
(If you're unsure, flick us your chassis number — we're happy to help.)

What’s in the Kit:

• 4x T6061 Alloy Half Moon Seals (enough for one full engine — two per head)

Lock in your oil. Forget the mess.