Fuel Pump Modules

Can the stock fuel pump no longer keep up as boost pressure and power increase? A fuel pump module combines the pump and hanger in one unit that is installed in the tank. This category is for you if you want to increase the fuel supply in your project without building the solution from individual parts.

What a fuel pump module does

The module replaces the original pump assembly in the tank and delivers fuel to the engine at the flow and pressure the system requires. The advantage over a standalone pump is that the pump and hanger are matched to each other and to the specific tank, which typically makes installation easier. DeatschWerks, for example, offers modules such as the X2 Series with two DW400 pumps as well as DW300 and DW400 modules for specific cars, e.g. BMW F20, F30 and F87 with the N55 engine, Mustang and Cadillac CTS-V. The category also includes brands such as Walbro, QuadBoss and OMIX.

How to choose a fuel pump module

Choose based on several factors – pump size alone does not determine whether the module suits your project:

• Flow requirement: the module must be able to deliver enough fuel for your power target, but unnecessarily high flow can strain the system without giving anything extra.
• Returnless or return-style: the module must match the car's fuel system. The DW400 Performance Module, for example, is available in a returnless version, while the X2 Series is available with a PTFE return line kit.
• Fitment: the module must fit your specific tank and car model, so always check the specific part number.
• Pressure regulation: with increased flow, it may be relevant to look at a fuel pressure regulator.

If you need a standalone pump or a new strainer, you will find fuel pumps and pump strainers in the sister categories. During installation, wiring and electrical supply should be assessed, as a more powerful pump typically draws more current.

Frequently asked questions

What is the difference between a pump module and a standalone fuel pump?

A module is a complete unit with pump and hanger that is installed in the tank as one part. A standalone pump must be fitted in the existing hanger, possibly with an installation kit. What suits you best depends on the car and the project.

Should I choose a module with one or two pumps?

It depends on your power target and fuel requirement. A module with two pumps, e.g. the X2 Series with dual DW400 pumps, can deliver more flow but typically places greater demands on the electrical supply.

Does a new pump module require engine management adjustment?

It depends on the product and the car. If flow or pressure changes, it may be necessary to adjust the engine management or the pressure regulator. Always check the information for the specific part number before installing the module.