DeatschWerks 9-551-0500 DW550 Series 550lph In-Tank Fuel Pump w /Universal Install Kit

DeatschWerks DW550 Series 550 LPH In-Tank Fuel Pump w/ Universal Install Kit – Part No. 9-551-0500

The DeatschWerks DW550 Series 550 LPH In-Tank Fuel Pump with Universal Install Kit (Part No. 9-551-0500) is a high-flow, performance-engineered fuel delivery solution built for serious enthusiasts. Designed for vehicles running aggressive upgrades—turbocharged, supercharged or high-rev naturally aspirated—the DW550 delivers 550 litres per hour at 40 psi, providing the headroom demanded by high-output EFI systems. With its universal 46 mm fitment and included install kit, this pump offers flexibility for a wide range of vehicles. The motor is computer-balanced and backed by carbon commutators for E85 compatibility, ensuring smooth, reliable operation without sacrificing drivability—making it a smart choice when upgrading the fuel system is essential for peak performance.  If you’re building for bigger power and need a fuel system component that won’t hold you back, the DW550 delivers the flow, quality and fitment versatility required. 

Key Features

• 550 LPH (litres per hour) flow rate at 40 psi — designed for high-demand performance applications. 

• Universal in-tank design with 46 mm fitment diameter, simplifying installation across many platforms. 

• Integrated check valve built into pump housing for improved fuel system stability. 

• Quiet operation and compatibility with PWM (pulse width modulation) control for modern ECU systems.

• E85-ready construction: carbon commutators and fully encapsulated armature ensure durability with ethanol blends. 

• Includes a universal install kit for in-tank mounting, simplifying the upgrade from stock equipment.

• Offered by DeatschWerks, a recognized leader in aftermarket fuel system components.

Benefits

• Upgrading to this pump ensures the fuel supply keeps pace with high-horsepower or boosted builds, reducing risk of fuel starvation under load.

• Universal fitment reduces compatibility concerns—one solution works for multiple vehicle platforms.

• The built-in check valve helps maintain rail pressure after engine shutoff, enhancing reliability and throttle response.

• Quiet, PWM compatible operation means this high-flow pump integrates well with modern control systems without undue noise or modification.

• Ethanol compatibility means you’re protected if using high-Ethanol fuels (such as E85), giving flexibility for tuning or fuel choices.
  

• Smooth drivability is maintained despite the high-flow capability—ideal for enthusiasts who want street and track use.

Specifications

• Flow Rate: 550 litres per hour at 40 psi. 

• Fitment Diameter: 46 mm universal in-tank. 

• Included Kit: Universal install kit for in-tank mounting (hardware, fittings etc).

• Construction Materials: Brushed motor with carbon commutators and fully encapsulated armature. 

• Compatibility: E85-ready fuel system use, PWM control compatible. 

• Colour: Standard metallic finish typical of OEM-style in-tank pumps (manufacturer does not highlight custom colours).

• Series: DW550.

• Part Number: 9-551-0500.

• Universal Fuel Pump Kit part number included: 9-0500 (install kit) 

• Regulatory Note: Not CARB legal for sale in California or states requiring CARB certification.

Install Difficulty Level

Installation of the DW550 is described as straightforward for anyone comfortable working with in-tank fuel modules. Typical install time for similar pumps is about 30 minutes. The universal install kit simplifies the process by including necessary fittings and mounting hardware. It’s advisable to depressurize the fuel system, disconnect the battery, remove the fuel pump module or access panel, install the new pump and kit, prime the system, check for leaks and then start the engine. With proper tools and safety measures, the upgrade is well within reach for the capable DIY enthusiast. As always, ensure clean fuel, correct wiring, and proper grounding to maximize reliability.

Vehicle Fitment

Because this is a universal in-tank fuel pump upgrade kit, the DW550 (Part No. 9-551-0500) is not restricted to a specific year/make/model/engine combination. Instead, it is designed to replace or upgrade the in-tank fuel pump module across a range of vehicles that utilize a 46 mm diameter pump mount or can adapt to the universal install kit. It is best suited for performance builds where the stock pump cannot supply the required flow. For exact fitment, users should verify tank dimensions, fuel pump mounting diameter, connector compatibility, and return system fitment.

CARB Approval

This product is not CARB approved. It is explicitly listed as “Not for sale in California” and not legal for use in CARB-regulated states.

Should any questions arise—whether about fitment, compatibility, or to report any discrepancies in the product description—please contact the MPT Performance experts at (407) 636-7077 or by email.