Exergy

Driving a diesel pickup and want more power or a reliable replacement for worn injectors? Exergy makes diesel injectors and high-pressure pumps for popular diesel engines such as Duramax, Cummins and Power Stroke. Here you’ll find new and remanufactured injectors in stock and performance versions, CP3 pumps and conversion kits.

American specialist in diesel fuel injection

Exergy is an American brand focused on the fuel system of modern common rail diesel engines. Its injectors and pumps are built and tested for each engine type, and the range covers everyday driving, towing and pure performance. The brand is especially well known in the American diesel truck scene, where higher-flow injectors and stronger pumps are a classic step when the engine is tuned for more power.

Exergy’s key products

Diesel injectors are the core of the range and are available from stock flow up to larger injectors for performance and competition. Larger injectors can deliver more fuel and therefore more power when combined with suitable tuning and airflow. Exergy also offers CP3 high-pressure pumps for extra fuel capacity, as well as conversion kits that replace the factory CP4 pump with a CP3 on selected engines. Gaskets, lines and mounting parts complete the range. See each product for engine and year.

Buy Exergy from us

We specialise in performance parts and know what it takes for a project to succeed. You get a wide selection, competitive prices and personal service if you have questions along the way. Find the Exergy solution for your project and take the next step towards more performance.

Frequently asked questions

Does the truck need tuning when I fit larger injectors?

Yes, larger injectors usually require matching tuning so injection timing and pressure suit the increased flow. Without tuning you won’t get the benefit of the injectors and risk smoke and high exhaust gas temperatures.

Why do many switch from a CP4 to a CP3 pump?

Many consider the CP3 pump more robust, and it often offers more fuel capacity. A conversion kit makes it possible to fit a CP3 on engines that come with a CP4 from the factory. See each product for which engines the kit fits.

How do I know if a part fits my car?

Contact us with your car’s make, model, year and preferably engine code, and we’ll help you find the right part.

What is the delivery time?

The delivery time is shown on each product page. It depends on whether the item is in stock in our own warehouse or with our supplier.