Radium Injector Seats for Top Feed Conversion Fuel Rails - Subaru

Radium Injector Seats for Top Feed Conversion Fuel Rails - Subaru

Application: Subaru EJ and EG33 engines converting to top-feed injectors – see Vehicle Fitment
Part Type: Injector seats for top feed conversion
Part Number: 20-0171-04, 20-0305, 20-0305-04, 20-0305-06

Radium Subaru injector seats are the same machined aluminium seats used in many Radium fuel rails. They are needed when converting OEM side-feed injectors to aftermarket top-feed injectors.

The seats press-fit into the intake manifold or TGV injector ports with no modification and seal against the injector counterbore with the included FKM O-ring, preventing vacuum and boost leaks. The bores suit a common 14mm lower injector O-ring.

Key Features

• Two Sizes: 22mm for later EJ engines, 26mm for earlier EJ and EG33 engines
• Press-Fit Install: Fits the manifold/TGV injector ports without modification
• FKM O-Ring Seal: Prevents vacuum and boost leaks
• 14mm Lower Bore: Suits common aftermarket top-feed injectors
• Billet Aluminium: The same seats used in Radium Subaru fuel rails

Available Configurations

• 20-0171-04: 22mm seats, set of 4
• 20-0305: 26mm seat, single
• 20-0305-04: 26mm seats, set of 4
• 20-0305-06: 26mm seats, set of 6

What's Included

• Injector seat(s) as per selected configuration
• FKM O-ring for each seat

Important Notes

• Measure the lower injector O-ring and confirm the seat size for your engine before ordering
• Clean the injector seat bores and lubricate the O-rings with O-ring lube, petroleum jelly or engine oil, then press the seats in until fully seated (a small rubber mallet may be used)
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• 22mm (20-0171-04): 2004–2007 WRX STI (USDM); 2004–2005 Forester XT; 2005–2006 Legacy GT; 2004–2006 Legacy GT (JDM); 2005–2006 Outback XT
• 26mm (20-0305): 1992–1996 WRX (JDM/EDM); 1997–2000 WRX (JDM/EDM); 1994–1996 WRX STI (JDM); 1998–2001 Forester (JDM); 1998 Forester 2.5L; 1998 Impreza
• 26mm (20-0305): 1992–1999 Legacy GT (JDM); 1996–1999 Legacy GT; 1994–1995 Legacy 2.5L; 1996–1999 Outback 2.5L; 1992–1997 SVX (EG33)

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.