Restore proper sealing inside your diesel injection pump with this Genuine Nissan Injector Pump Advance Plate O-Ring, designed for Nissan Patrol GQ Y60 and GU Y61 models fitted with RD28 and TD42 engines. This OEM O-ring seals the advance plate assembly on the injection pump, helping maintain correct fuel delivery and preventing leaks or air ingress.

Over time, this O-ring hardens, shrinks, or becomes brittle due to constant exposure to diesel fuel and heat cycling. A failing seal is a common cause of fuel leaks from the injection pump and can also allow air into the fuel system, leading to hard starting, rough idle, poor performance, and reduced reliability.

Manufactured to genuine Nissan specifications, this direct-fit seal ensures precise fitment, reliable fuel system operation, and long-term durability under diesel engine conditions.

Features & Benefits

• Genuine Nissan OEM part for exact fitment and reliability
• Designed for Nissan Patrol GQ Y60 and GU Y61 RD28 & TD42 engines
• Seals the injection pump advance plate assembly
• Helps prevent diesel leaks and air ingress into fuel system
• Restores correct fuel delivery and engine performance
• Diesel-resistant rubber compound for long service life
• Direct replacement for worn or hardened factory O-ring
• Ideal for injection pump servicing or reseal jobs

Vehicle Fitment

Suitable for:

• Nissan Patrol GQ Y60 RD28
• Nissan Patrol GU Y61 RD28
• Nissan Patrol GQ Y60 TD42
• Nissan Patrol GU Y61 TD42

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

Common Signs of a Failed Advance Plate O-Ring

• Diesel fuel leak from injection pump body
• Hard starting, especially after sitting
• Rough idle or inconsistent running
• Air bubbles in fuel lines
• Strong diesel smell in engine bay

Replacing this small but critical seal helps prevent major fuel system issues.