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DeatschWerks builds the high-flow fuel pumps and injectors that feed modern boosted builds — from 750cc to 2200cc injectors and 415 lph to 750 lph pumps. The choice of EcoBoost Mustang, MK7 Golf R, EVO X, and forced-induction Honda builds.
The DeatschWerks DW420 Series 420lph In-Tank Fuel Pump is designed to meet the rigorous demands of modified Subaru engines. Whether you are driving a classic Impreza, a WRX/STI, or a Forester, this high-flow pump provides the overhead required for significant power gains. With 420 liters per hour of flow, this pump is ideal for those running E85, larger injectors, or upgraded turbochargers, ensuring your engine stays safe even at high RPM and boost levels.
Subaru engines are sensitive to fuel pressure drops, especially when modified. The DW420 pump ensures a steady, reliable supply of fuel, preventing lean conditions that can lead to engine damage. By choosing this high-performance pump, you are investing in the longevity and reliability of your engine. The installation process is straightforward, allowing you to spend less time in the garage and more time on the road or track. For top-tier performance parts and expert advice, look no further than GGCRACING.
| Brand | DeatschWerks |
|---|---|
| Manufacturer part number | 9-421-0791 |
| GGC SKU | DWK9-421-0791 |
| UPC / GTIN | 00887753542366 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 6.3 × 4.2 × 2.4 in |
|---|---|
| Shipping weight | 1.2 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 1998-2002 | Subaru | Forester | Base, L, S |
| 2003-2005 | Subaru | Forester | XS |
| 2003-2007 | Subaru | Forester | X |
| 2004-2005 | Subaru | Forester | XT |
| 2005 | Subaru | Forester | XS L.L. Bean Edition, XT Premium |
| 2006-2007 | Subaru | Forester | X L.L. Bean Edition, XT Limited |
| 1993-1994 | Subaru | Impreza | LS |
| 1993-1995 | Subaru | Impreza | Base |
| 1993-2001 | Subaru | Impreza | L |
| 1995-1996 | Subaru | Impreza | LX |
| 1995-2004 | Subaru | Impreza | Outback |
| 1996-1997 | Subaru | Impreza | Brighton |
| 1998-2005 | Subaru | Impreza | RS |
| 2002-2004 | Subaru | Impreza | TS |
| 2002-2007 | Subaru | Impreza | WRX |
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2005-2007 | Subaru | Impreza | Outback Sport |
| 2006-2007 | Subaru | Impreza | WRX Limited, 2.5i, WRX TR |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 1990-1996 | Subaru | Legacy | LS |
| 1990-1999 | Subaru | Legacy | L |
| 1991-1994 | Subaru | Legacy | Sport |
| 1991-1997 | Subaru | Legacy | LSi |
| 1994 | Subaru | Legacy | GT, Outdoor, Sun Sport, Touring, Alpine Sport |
| 1995 | Subaru | Legacy | Base |
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