•  Secures injector under clamp with snug fit
  
• Fits around narrow section of injector body
• One required per injector – don’t forget the small seal

This large retaining O-ring is essential for properly securing your fuel injector in place. It slips around the thinner section of the injector, allowing the clamp to hold it firmly against the intake manifold. Designed for a precise fit, it ensures stability and prevents fuel leaks during operation.

You’ll need one of these O-rings for each injector. And don’t forget the small injector seal, part number 311-133-261/A that fits between the injector and the intake manifold—both components are crucial for a leak-free, efficient fuel system.