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
20-0171 SUBARU INJECTOR SEAT, 22MM
20-0171 is used to convert side feed injectors to top feed injectors. They are green anodized, as shown below.
COMPATIBILITY
04-06 SUBARU EJ257 (that came with side feed injectors)
NOTE: There may be other compatible engines but have never been verified.
20-0305 SUBARU INJECTOR SEAT, 26MM
20-0305 is used to convert side feed injectors to top feed injectors. They are black anodized, as shown below.
COMPATIBILITY
All Subaru EJ engines (that came with side feed injectors) excluding 04-06 EJ257
91-97 Subaru SVX, EG33 (shown below)
20-0816 SUBARU AIR ASSIST INJECTOR SEAT
20-0816 is used to convert Subaru air assist injectors to standard top feed injectors.
They are black anodized, as shown below.
COMPATIBILITY
00-04 Subaru Outback H6
00-03 Subaru Lancaster 6
02-03 Subaru Legacy GT30
02-03 Subaru Legacy RS30
2002 Subaru Blitzen 6 Wagon
20-0778 INJECTOR SEAT ADAPTER. 14MM TO 17MM O-RING, 2MM EXTENSION
This Radium green adapter converts a fuel injector lower O-ring from 14mm to 17mm. These adapters were designed to fit into Subaru tumble generator valve housings (shown below) that came with top feed injectors. They effectively make the fuel injector 2mm taller.
Includes
-Anodized Aluminum Injector Seat (x1)
-FKM Viton O-ring (x1)
Sold individually. Be sure to lubricate O-rings prior to installation.