Radium Fuel Pump Hanger - Subaru WRX 08-21/STI 08-21/FXT 08-18/LGT 04-09
Application: Subaru Impreza / WRX / STI, Forester, Legacy and Outback - see Vehicle Fitment
Part Type: Fuel pump hanger (single or dual pump)
Part Number: 20-0780-00, 20-0781-00, 20-0782-00
The Radium Late Model Subaru Fuel Pump Hanger replaces the OEM hanger and fuel hold-down flange (reusing the OEM gasket) and supports one or two high-flow aftermarket fuel pumps. It is safe with E85 and other alternative fuels and requires no permanent modifications.
An anodised aluminium collector box keeps fuel around the pumps to help prevent starvation, fed by two one-way fill valves and a venturi jet pump with an integrated pressure relief valve that moves fuel from the passive to the active side of the tank without restricting the return. Each pump merges internally into a single outlet, so no external line merging is needed.
Key Features
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Single or Dual Pump: Supports one or two high-flow aftermarket pumps
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Collector Box: Anodised aluminium, with two 355 LPH one-way fill valves (710 LPH total)
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PRV Jet Pump: Venturi jet pump with integrated pressure relief valve transfers fuel without restricting the return
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Duckbill Valve: One-way valve prevents backflow and reduces fuel spray noise
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Merged Outlet: 8AN ORB (3/4"-16) pump-out port with preinstalled SAE quick connect male fitting
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Return and Crossover: 6AN ORB (9/16"-18) ports with preinstalled SAE quick connect male fittings
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Electrical: Anti-rotation stainless studs, separate +/- connection per pump, non-conductive anodised acorn nuts
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OEM Sensors: Level sensor mounts on the collector box; temperature sensor mounts on the internal pump bracket
Available Configurations
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20-0780-00: Walbro GSS342 (255 LPH), AEM 50-1200, AEM 50-1230* or AEM 50-1235*
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20-0781-00: DeatschWerks DW400
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20-0782-00: Walbro F90000267, F90000274, F90000285 or F90000295*
What's Included
- Anodised aluminium, laser engraved fuel hat
- Collector box with two one-way fill valves
- PRV venturi jet pump
- Stainless electrical terminals and hardware
- SAE quick connect fittings
- Submersible fuel tubing
Optional Parts
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Radium Fuel Rail Plumbing Kit w/Filter - Subaru WRX 08-14/STI 08-21/FXT 08-13/LGT 04-09 (20-0629-03 / 20-0629-05) - plumbing kit with post-pump filter, feed/return lines, retainers and filter bracket
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Radium Fuel Level Sensor Adaptor, Subaru WRX VA / Forester XT SJ (20-0850) - required for 2015-2021 WRX and 2014-2018 Forester XT (FA20 returnless system)
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Radium Engineering Check Valve - 6AN ORB to 8.5mm Barb (20-1533) - check valve for AEM 50-1230 / 50-1235 pumps
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Radium Engineering Check Valve - 6AN ORB to 10mm Barb (20-1534) - check valve for Walbro F90000295 pumps
Important Notes
- Fuel pumps not included
- *AEM 50-1230, AEM 50-1235 and Walbro F90000295 have no internal check valve - add 20-1533 (AEM) or 20-1534 (Walbro) if required
- An external post-pump fuel filter is required on all installations (included in the 20-0629 plumbing kit)
- 2015-2021 WRX and 2014-2018 Forester XT have a returnless OEM system and need the 20-0850 level sender adaptor plus an aftermarket FPR
- Single-pump installs can reuse the OEM wiring, but upgraded wiring is recommended for high-current pumps - one DIY wiring kit per pump
- Radium recommends aftermarket fuel rails and an aftermarket FPR when using the plumbing kit
- Radium's instructions include extra steps for RHD vehicles
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Subaru Impreza incl. WRX / STI (2008-2014)
- Subaru WRX STI (2015-2021)
- Subaru WRX (2015-2021) - requires 20-0850 adaptor and aftermarket FPR
- Subaru Forester (2008-2014)
- Subaru Forester XT (2014-2018) - requires 20-0850 adaptor and aftermarket FPR
- Subaru Legacy (2005-2009)
- Subaru Outback (2005-2009)
For application support, send your vehicle details to TJ Auto Parts through the Parts Finder.
Supplier-listed applications:
- Subaru Impreza incl. WRX / STI (2008-2014)
- Subaru WRX STI (2015-2021)
- Subaru WRX (2015-2021) - requires 20-0850 adaptor and aftermarket FPR
- Subaru Forester (2008-2014)
- Subaru Forester XT (2014-2018) - requires 20-0850 adaptor and aftermarket FPR
- Subaru Legacy (2005-2009)
- Subaru Outback (2005-2009)
Note: Compatibility information is provided as a general guide only. Some vehicles may have multiple part variations for the same model or engine. To ensure this product is the correct fit and to be eligible for our Fitment Guarantee, please contact our team before purchasing.
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If you can’t find the part you need, please fill out our Fitment Finder or visit our Contact Us page. One of our expert team members will respond promptly to assist with your enquiry.
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Payment is completed during checkout. We accept all major payment methods via Shopify Payments including credit/debit cards, Apple Pay, Google Pay, and more. Direct bank transfer is also available please contact us at contact@tjautoparts.com.au for bank details and instructions.
How long will it take to process my order?
We aim to process and dispatch all orders within 1–2 business days. If there are any delays, we will notify you promptly via email.
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Where do the products come from?
All products are sourced directly from the manufacturer or authorised suppliers to ensure authenticity. Every item is backed by the manufacturer’s warranty.
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Yes, we offer trade accounts and pricing for qualified customers. To find out more or apply, simply email us at contact@tjautoparts.com.au and our team will assist you.
To see more FAQs visit our FAQs page or get in touch today.
Shipping Rates
We offer free standard shipping on all orders over $150 (excluding bulky items). For orders under $150. Standard shipping starts at $9.95. Express shipping starts at $14.95. Shipping costs can be calculated in the cart or at checkout. Orders containing bulky items such as batteries, brake discs, liquids, and lift kits may incur additional shipping charges, particularly to remote or regional areas.
Dispatch & Handling
We aim to process and dispatch all orders within 1-2 business days. In the event of any delays, our customer service team will notify you. Tracking numbers are sent via email once your order has been dispatched and can also be accessed from your account.
For enquires on same day delivery or pickup, please contact our team before ordering to check availability. Custom or order in only items may have longer lead times. For more details on shipping, see our Delivery information page.
Returns and Refunds
If you change your mind or need to cancel an order, simply contact us at contact@tjautoparts.com.au within 30 days of delivery. Items should be unused and in their original packaging. A small restocking/admin fee of 5–20% may apply to help cover processing costs. This fee is only applicable at the discretion of our staff and may not apply to all orders. Return shipping is covered by you unless we sent the wrong or faulty item, in which case we’ll take care of it. Once we receive your return, refunds are processed quickly, usually within 48 hours, with up to 5 business days for your bank to complete the transfer.
We’re here to help make returns easy and hassle free! Contact us with any questions.
Warranty
All products come with the manufacturer’s warranty. If you experience any issues, please contact us at contact@tjautoparts.com.au. For full details on warranty coverage and claims, please visit our Returns page.
