Radium Injector Seat O-Ring Service Kits | Universal (20-0947 / 20-0948 / 34-502075 / 35-508075 / 35-514075)

An injector that weeps at the seat is an O-ring problem, not an injector problem.

Radium Engineering injector seat O-ring service kits and individual O-rings for Radium fuel rails. The kits cover Nissan seats; the individual O-rings cover Subaru and Toyota seats and adapters, sold each.

Choose Your Part

• Nissan 25mm injector seat O-ring service kit (20-0947)
• Nissan 30mm injector seat O-ring service kit (20-0948)
• O-ring for Subaru 27mm injector seat, each (34-502075)
• O-ring for Toyota / Subaru air-assist seat, each (35-508075)
• O-ring for Subaru 14-17mm injector adapter, each (35-514075)

Features

• Service kits for Nissan 25mm and 30mm injector seats
• Individual replacement O-rings for Subaru and Toyota seats
• Fuel and ethanol compatible

The Details

Replace seat O-rings any time injectors come out of a rail. They are the cheapest part of the job and the most likely cause of a seep after reassembly, since an O-ring that has been compressed and heat cycled will not seal the same way a second time.

The individual O-rings are sold each, so order one per injector plus a spare. The air-assist O-ring (35-508075) covers both Toyota and Subaru air-assist seats, which is convenient given Radium sells air-assist seats for both platforms.

Applications

• Radium fuel rails with Nissan, Subaru, or Toyota injector seats and adapters

Important Notes

• Individual O-rings are sold each; order one per injector
• Match the seat size before ordering; 25mm and 30mm Nissan kits are not interchangeable