Maintain proper fuel sealing and reliable injector operation with this Genuine Nissan Top Injector O-Ring, designed for Nissan Patrol GQ Y60 models fitted with the TB42 EFI engine. This OEM O-ring seals the top of the fuel injector where it interfaces with the fuel rail, helping maintain correct fuel pressure and preventing fuel leaks in the injection system.

Over time, the original O-rings can harden, crack, or flatten due to heat cycles and constant fuel exposure. A worn seal may lead to fuel leaks, poor engine performance, hard starting, rough idle, or fuel pressure loss. Replacing these small but critical seals helps restore proper injector function and ensures consistent engine operation.

Manufactured to genuine Nissan specifications, this direct-fit replacement delivers precise sealing performance, long-lasting durability, and reliable operation for everyday driving, towing, touring, and off-road use.

Features & Benefits

• Genuine Nissan OEM injector O-ring for exact fitment and reliability
• Designed specifically for Nissan Patrol GQ Y60 TB42 EFI engines
• Seals the top of the injector to the fuel rail
• Helps maintain correct fuel pressure and injector performance
• Prevents fuel leaks and air ingress into the fuel system
• Restores smooth idle and consistent engine operation
• Fuel- and heat-resistant rubber construction for long service life
• Ideal for injector servicing or fuel system rebuilds
• Direct replacement with no modifications required

Vehicle Fitment

Suitable for:

• Nissan Patrol GQ Y60 with TB42 EFI engine

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

Common Signs You Need Injector O-Ring Replacement

• Fuel smell in engine bay
• Visible fuel leaks around injectors or fuel rail
• Hard starting or extended cranking
• Rough idle or inconsistent running
• Loss of fuel pressure or drivability issues
• Injector removal during servicing or rebuild

Replacing worn injector O-rings is essential for maintaining fuel system integrity, safe operation, and long-term reliability of your TB42 EFI engine.