Maintain a reliable seal on your engine’s timing cover with this Genuine Nissan Square Timing Cover O-Ring, designed for Nissan Patrol GQ Y60 and GU Y61 models fitted with TD42, TD42T, and TD42Ti engines. This OEM square-profile O-ring seals the timing cover to the engine block, preventing oil leaks from the front of the engine.

Over time, the original seal can harden, flatten, or crack due to constant heat cycles and engine oil exposure. A failing timing cover O-ring is a common cause of oil leaks around the front of the TD42 engine and, if left unattended, can lead to low oil levels and potential engine damage.

Manufactured to genuine Nissan specifications, this direct-fit replacement ensures accurate sealing, correct fitment, and long-lasting durability in demanding diesel and off-road conditions.

Features & Benefits

• Genuine Nissan OEM part for exact fitment and reliability
• Designed specifically for TD42, TD42T, and TD42Ti engines
• Square-profile O-ring for superior sealing performance
• Prevents oil leaks from timing cover to engine block interface
• Heat and oil resistant material for long service life
• Helps maintain correct engine oil levels and lubrication
• Direct replacement for worn or hardened factory seal
• Ideal for engine servicing or timing cover reseal jobs

Vehicle Fitment

Suitable for:

• Nissan Patrol GQ Y60 TD42
• Nissan Patrol GU Y61 TD42
• Nissan Patrol GU Y61 TD42T
• Nissan Patrol GU Y61 TD42Ti

Please confirm compatibility before purchase or contact with your VIN for assistance.

Common Signs of a Worn Timing Cover O-Ring

• Oil leaks from front of engine (timing cover area)
• Oil residue around crank pulley or timing cover
• Gradual loss of engine oil
• Visible hardened or flattened seal during inspection
• Persistent leaks after gasket replacement elsewhere

Replacing this seal during timing cover service helps prevent repeat oil leaks and costly engine damage.