DeatschWerks VB40AX1 Voltage Booster with Plug-N-Play Harness for 10-25 Ford Mustang

SKU: 4-01-VB40aX1

DeatschWerks DW400 In-Tank Fuel Pump with Install Kit – 415 LPH High-Performance Fuel Delivery for Ford Mustang 2011-2025

Ford Mustang’s performance with the DeatschWerks DW400 In-Tank Fuel Pump (4-01 VB40AX1), the industry-leading solution for high-horsepower builds. Engineered for seamless integration and maximum fuel delivery, this 415 LPH (liters per hour) fuel pump is designed to support up to 1000 HP on gasoline and 750 HP on E85, making it the perfect upgrade for supercharged, turbocharged, or nitrous-equipped Mustangs. Whether you’re hitting the track or pushing the limits on the street, the DW400 ensures reliable, high-flow fuel delivery for your 2011-2025 Ford Mustang V6, L4, or V8 engine

• High Flow Rate: Delivers an impressive 415 LPH at 40 PSI and 350 LPH at 80 PSI, outperforming competitors like the Walbro 450 by 31% at high pressures.

E85 Compatibility: Built with corrosion-resistant internals, including carbon commutators, a composite impeller, and a fully encapsulated armature, ensuring durability with pump gas, E85, and race fuels.

• Compact Design: With a 46mm diameter, the DW400 is optimized for in-tank installation, offering a balance of performance and fitment.
• Quiet Operation: Features a turbine impeller and computer-balanced armature for smooth, low-noise performance.
• Pulse Width Modulation (PWM) Compatibility: Works seamlessly with modern fuel pump controllers for precise fuel delivery.
• 3-Year Limited Warranty: Backed by DeatschWerks’ commitment to quality, covering manufacturing defects for peace of mind.
• Fuel Type :All Fuel Types
• Material :T6061 Aluminum

Fitment:

Compatibility with Ford Mustang Models (2011-2025)

The DeatschWerks DW400 Fuel Pump (4-01 VB40AX1) with Install Kit is specifically designed for a wide range of Ford Mustang models, ensuring a perfect fit for:

• V6 Models: 2011-2014 Base (3.7L V6), 2015-2017 V6 (3.7L V6)
• L4 Models: 2015-2025 EcoBoost (2.3L L4), 2015-2025 EcoBoost Premium (2.3L L4)
• V8 Models (5.0L): 2011-2025 GT, 2015-2025 GT Premium, 2012-2013 Boss 302, 2019-2020 Bullitt, 2021-2023 Mach 1, 2015 GT 50 Years Limited Edition, 2024-2025 Dark Horse, 2024-2025 Dark Horse Premium
• V8 Shelby Models: 2015-2020 Shelby GT350 (5.2L V8), 2015-2020 Shelby GT350R (5.2L V8), 2020-2022 Shelby GT500 (5.2L V8), 2011-2012 Shelby GT500 (unspecified V8), 2013-2014 Shelby GT500 (5.8L V8)
• Special Model: 2025 GTD (engine unspecified)

Note: Specific fitment kits (e.g., 9-1046 for 2011-2014 V6/GT, 9-403-1047 for 2015-2025 GT/V6/Dark Horse) may be required depending on the model year. Check the DeatschWerks website or contact our team for exact compatibility.

Installation Details

• Drop-In Design: Reuses most of the stock fuel pump assembly, requiring minimal modifications. The included install kit (fuel hose, clamps, electrical harness, and filter) ensures a hassle-free setup.
• Fitment Notes: The DW400 is wider than stock pumps, so minor trimming of the stock fuel hat may be necessary for proper fitment.
• Skill Level: Expert-level installation recommended. Professional installation is advised for those unfamiliar with fuel system upgrades.
• For Competition Use: Designed primarily for track use; check local regulations for street legality.

Technical Specifications

• Weight: 19.4 oz (550 grams)
• External Materials: Electroplated steel
• Inlet Fitting: 14mm ID, 18.1mm OD
• Outlet Fitting: 3/8″ hose clamp
• PRV Activation: 120 PSI
• Impeller Design: Single scroll composite turbine
• Connector Terminal: Spade Pos/Neg
• Voltage Range: 6-18 Volts
• Current Draw: 16.5 amps at 40 PSI (13.5V)

Frequently Asked Questions

• Will this fuel pump fit my 2025 Mustang GTD? Yes, the DW400 is compatible with the 2025 GTD, but confirm the specific install kit required for your model.
• Is the DW400 street-legal? This pump is designed for competition use; verify local laws before using it on public roads.
• Can I use this with E85 fuel? Absolutely, the DW400 is fully E85-compatible with corrosion-resistant internals.
• What horsepower does this support? Up to 1000 HP on gasoline and 750 HP on E85, ideal for high-performance builds.

Manufacturer: DeatschWerks

Description: DeatschWerks VB40AX1 Voltage Booster with Plug-N-Play Harness for 10-25 Ford Mustang

Product Name: DW Voltage Booster

Box 1 Dims (LxWxH-W): 10.6 x 8.4 x 6.5 – 3.1

Born On Date: 04-08-2025

Why Choose the DeatschWerks DW400 Fuel Pump?

The stock fuel pump in your Ford Mustang can become a bottleneck when upgrading to forced induction or high-performance setups. The DeatschWerks DW400 eliminates this weak link by delivering nearly double the fuel flow of OEM pumps, ensuring your engine gets the fuel it needs to perform at its peak. Ideal for track enthusiasts and performance tuners, this fuel pump supports aggressive builds while maintaining reliability and efficiency. Its drop-in design simplifies installation, and its E85 compatibility makes it versatile for a wide range of fuel types.

Why Buy from DeatschWerks?

Founded in 2004 in Oklahoma City, DeatschWerks is a trusted name in high-performance fuel systems, known for innovative solutions like the DW300 and DW400 pumps. Operating from a 36,000 sq. ft. facility, DeatschWerks designs, manufactures, and tests all products in-house, ensuring unmatched quality and performance. With over 500 SKUs covering modern muscle and sport compact applications, DeatschWerks is the go-to brand for tuners and racers worldwide.