Genuine OEM Nissan RB Rocker Cover Half Moon Seal – 11051-58S00

Genuine OEM Nissan rocker cover half moon seal to suit a wide range of RB-series engines, including the legendary RB26DETT.

Located at the rear of the cylinder head beneath the rocker cover gasket, this genuine rubber half moon seal helps prevent oil leaks from the back of the engine. Over time the original seal becomes hard and brittle due to years of heat cycles, making it one of the most common sources of rocker cover oil leaks. Replacing it whenever the rocker cover is removed is highly recommended.

Ideal for rocker cover reseals, engine rebuilds and preventative maintenance.

Features:

• Genuine OEM Nissan part

• Direct factory replacement

• High-quality OEM rubber construction

• Helps prevent oil leaks from the rear of the cylinder head

• Perfect to replace during rocker cover gasket servicing

Part Number:

• 11051-58S00

Engine Compatibility:

• RB20DE

• RB20DET

• RB25DE (Non-NEO)

• RB25DET (Non-NEO)

• RB26DETT

• CA18DE

• CA18DET

• VG30DE

• VG30DETT

Vehicle Compatibility (including but not limited to):

• Nissan Skyline R31, R32, R33 & R34

• Nissan Skyline GT-R BNR32, BCNR33 & BNR34

• Nissan Stagea WC34 & 260RS

• Nissan Laurel C33 & C34

• Nissan Cefiro A31

• Nissan Silvia S13 / 180SX (CA18)

• Nissan 300ZX Z32

Note: This listing is for one (1) genuine OEM Nissan rocker cover half moon seal only. Two (2) seals are required per engine for a complete rocker cover reseal. Supplied in genuine OEM Nissan packaging (packaging may be removed for product photography).