DeatschWerks DW400 In-Tank Fuel Pump w/ Install Kit 415 LPH — 2015-2026 Ford Mustang
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DeatschWerks DW400 In-Tank Fuel Pump — 415 LPH
The DeatschWerks DW400 is a high-flow 415 lph in-tank fuel pump built for the 2015-2026 Ford Mustang — both S550 and S650 platforms, every engine option. Whether you're pushing a bolt-on GT, a supercharged Coyote, or a tuned EcoBoost, this pump delivers the fuel volume your build demands without starving at high RPM or wide-open throttle.
This is the complete kit. You get the DW400 pump plus the 9-1047 install kit — electrical connectors, filter sock, hose, clamps, and spacers — everything you need for a drop-in swap. No hunting for adapters, no extra trips to the parts store.
Why the DW400?
- 415 lph flow rate — supports 700+ whp on E85 or 850+ whp on gasoline, depending on fuel pressure and tune
- Direct drop-in fit — uses the factory fuel pump cradle on all 2015-2026 Mustangs (GT, EcoBoost, V6)
- Includes 9-1047 install kit — connectors, filter sock, hose, clamps, and spacers included
- 1/8" venturi included — keeps fuel feeding the pump during hard acceleration and cornering
- Proven reliability — DeatschWerks fuel pumps are used in competitive drag, road racing, and daily-driven builds worldwide
Technical Specifications
| Spec | Value |
|---|---|
| Flow Rate | 415 lph |
| Series | DW400 Pump Modules |
| Amperage at 80 PSI | 19.4 amps |
| Recommended Wiring | 10-gauge (hardwire kit recommended) |
| Wiring Upgrade PN | FPHWK-10-HD (sold separately) |
| Venturi | 1/8" included |
| Weight | 3.0 lbs |
| UPC | 887753532954 |
Vehicle Fitment
| Vehicle | Years | Platform |
|---|---|---|
| Ford Mustang GT (5.0L Coyote) | 2015 – 2026 | S550 / S650 |
| Ford Mustang EcoBoost (2.3L Turbo) | 2015 – 2026 | S550 / S650 |
| Ford Mustang V6 (3.7L) | 2015 – 2017 | S550 |
| Ford Mustang Dark Horse (5.0L) | 2024 – 2026 | S650 |
Note: DeatschWerks recommends a 10-gauge hardwire kit (PN: FPHWK-10-HD) for maximum voltage delivery at the pump. The DW400 draws 19.4 amps at 80 PSI — stock wiring can create voltage drop under high demand. The hardwire kit runs a dedicated circuit from the battery to the pump.
What's in the Box
- DeatschWerks DW400 in-tank fuel pump (415 lph)
- 1/8" venturi
- 9-1047 installation kit: electrical connectors, filter sock, fuel hose, clamps, spacers
- Installation instructions
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