


Radium Engineering Injector Seats, 22mm for Subaru Forester XT SG 2003-2005 / Liberty GT BL 2004-2006
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Description
Radium Injector Seats, 22mm, Subaru Forester XT SG 03-05 / Liberty GT BL 04-06
Application: Subaru EJ – WRX STI, Forester XT, Legacy/Liberty GT, Outback XT (see fitment)
Part Type: Injector seat (sold individually)
Part Number: 20-0171
These are the same machined aluminium injector seats used in many Radium Engineering fuel rails. They are required when converting from OEM fuel injectors to aftermarket injectors, and press-fit directly into the intake manifold or TGV injector ports.
The included FKM O-ring seals the seat into the machined injector counterbore to prevent vacuum or boost leaks, and the seat bore is designed for a common 14mm lower injector O-ring. The same 22mm seat is supplied in Radium 20-0568-02 top feed conversion fuel rails for certain Subaru EJ engines.
Key Features
- Size: 22mm Subaru injector seat
- Construction: Machined aluminium
- Seal: FKM O-ring included
- Injector Bore: Suits a common 14mm lower injector O-ring
- Installation: Press-fit into the intake manifold / TGV injector port
What's Included
- 1 x 22mm injector seat
- 1 x FKM O-ring
Optional Parts
- Radium Top Feed Fuel Rail Conversion Kit - Subaru Liberty GT 04-06 (EJ20) (20-0568-02) – top feed conversion rails that use this seat
Important Notes
- Sold individually – order one seat per injector (adjust the quantity for your engine)
- Measure your lower injector O-ring before ordering
- Clean any debris from the injector seat bores, lubricate the O-rings with O-ring lube, petroleum jelly or motor oil, then press the seats in until fully seated (a small rubber mallet can help)
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Subaru WRX STI 2004-2007 (USDM)
- Subaru Forester XT 2004-2005
- Subaru Legacy GT 2005-2006
- Subaru Legacy GT 2004-2006 (JDM)
- Subaru Outback XT 2005-2006
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.

