Overview
The DeatschWerks DW420 is an in-tank fuel pump rated at 420 LPH, supplied with its vehicle-specific install kit, for Subaru Impreza WRX STI (GDB).
Every DeatschWerks fuel pump is performance tested before it ships: flow at 40, 60, 80 and 100 psi, amperage draw at each pressure, pressure-relief valve activation point, check valve function and cavitation.
Vehicle-specific pump kits include a fitment kit assembled for the application, and vehicle-specific install instructions are available on the DeatschWerks website.
Features
- Rated flow: 420 LPH
- Includes vehicle-specific install kit
Vehicle Fitment
- Subaru Impreza WRX STI GDB (2004-2007)
DeatschWerks application: DW420 series, 420lph in-tank fuel pump w/ install kit for Forester 97-07, Impreza (including WRX and STI) 93-07 and Legacy GT 90-99 and 05-07
DeatschWerks DW420 420 LPH In-Tank Fuel Pump Kit - Subaru Impreza WRX STI (GDB) (9-421-0791)
DeatschWerks DW420 420 LPH In-Tank Fuel Pump Kit - Subaru Impreza WRX STI (GDB) (9-421-0791)
SKU:DWK 9-421-0791
In stock
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Shipping & Returns
Shipping charges are non-refundable.
30-day return window from delivery. Items must be unused, uninstalled, and in original packaging with tags/seals intact. Installed, modified, or used parts (including wheels and tires) can't be returned. Open-box, clearance, and overstock items are final sale.
A restocking fee may apply.
Please contact us for return authorization before shipping anything back.
Vehicle Fitment
- Subaru Impreza WRX STI GDB (2004-2007)






