Fleece Performance

Do you drive a Cummins or Duramax and want more power, better fuel supply or a more reliable engine? Fleece Performance develops diesel parts for pickups used for towing, daily driving and competition. Here you’ll find turbochargers, injectors, lift pumps, CP3 conversion kits and a wide range of parts that address known weak points.

Diesel parts developed by enthusiasts

Fleece Performance is an American brand specialising in performance and reliability parts for diesel pickup engines, especially Cummins in Dodge and Ram and Duramax in GM. The brand is known in the diesel community both for developing parts for competition and for focusing on the problems ordinary owners face, such as fuel supply and the cooling system. Many products are made as complete kits with the parts needed for a clean installation.

Fleece Performance’s key products

Turbochargers are among the best-known products, both drop-in replacement turbos with larger compressor wheels and bigger turbos for higher power. The PowerFlo lift pumps fit inside the tank and provide steady fuel pressure to the high-pressure pump. For Duramax there are CP3 conversion kits that replace the original CP4 pump. The range also includes injectors, coolant bypass kits, fuel distribution blocks, intercooler pipes and other engine parts. See each product for engine, year and any other parts required.

Buy Fleece Performance 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 Fleece Performance solution for your project and take the next step towards more performance.

Frequently asked questions

What does a Fleece PowerFlo lift pump do?

It fits inside the fuel tank and delivers steady pressure and flow to the high-pressure pump. This reduces the risk of the pump running short of fuel, especially under heavy load or with extra power, and can help protect the fuel system.

Why choose a CP3 conversion kit for a Duramax?

Many Duramax owners choose to replace the original CP4 high-pressure pump with a CP3 to get a pump known for being robust and providing good fuel supply. The kit includes the parts needed for installation.