Radium Injector Seats for Subaru Top Feed Conversion Fuel Rails

Click here to download installation instructions (PDF)

These are the same machined aluminum injector seats used in many Radium Engineering fuel rails. They are required when converting the OEM fuel injector to aftermarket fuel injectors. They simply press-fit into the intake manifold/TGV injector ports with no modifications required.

Using the included FKM O-ring, they seal into the machined injector counterbore preventing vacuum (or boost) leaks.

The injector seat bores are designed to be used with a common 14mm lower injector O-ring.

NOTE: Because they are compatible with different cylinder engines, the injector seats are sold individually (not a set). Change quantity accordingly.

All injector seat styles use the following lower injector O-ring measurements shown. Measure before ordering.

FEATURES
-CNC machined 6061 aluminum
-Laser etched logo
-FKM O-rings

20-0216 TOYOTA INJECTOR SEAT
20-0216 is used to convert side feed injectors to top feed injectors.
 
COMPATIBILITY
2JZ-GTE
2JZ-GTE VVT-i
1JZ-GTE (Non VVT-i)

NOTE: There are other engines that are compatible but have never been verified.

 
20-0516 TOYOTA AIR ASSIST INJECTOR SEAT
20-0516 is used to convert Toyota air-assist injectors to standard top feed injectors. 
 
The Toyota air assist injector seats are anodized black, as shown below.
 
COMPATIBILITY
2JZ-GE VVT-i
1UZ-FE VVT-i
3UZ-FE

NOTE: There are other engines that are compatible but have never been verified.