Sinister Diesel

Driving a diesel truck and want an engine that lasts longer and performs better? Sinister Diesel makes upgrade and repair parts for popular diesel engines in American pickups. Here you’ll find coolant filters, intercooler pipes, up-pipes, fuel and oil parts and much more for Cummins, Duramax and Power Stroke.

Parts for American diesel trucks

Sinister Diesel is an American brand specialising in diesel engines for pickups such as Ram, Chevrolet, GMC and Ford. The focus is on the weak points many owners know from everyday use: cooling systems that collect debris, pipes and couplers that give way under boost, and fuel and oil systems that can be improved. The parts are designed to replace or supplement the original components, so truck and engine can handle hard work, heavy loads and extra power.

Sinister Diesel’s key products

Coolant filters are among the brand’s best-known products. They catch casting sand and other particles in the cooling system that could otherwise settle in the radiator and oil cooler. Heavy-duty intercooler pipes and couplers hold boost better than stock pipes. Up-pipes and manifold parts improve the exhaust side between engine and turbo. Sinister Diesel also offers fuel parts, oil cooler parts, gaskets and maintenance kits. See each product for the engines and model years it fits.

Buy Sinister Diesel 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 Sinister Diesel solution for your project and take the next step towards more performance.

Frequently asked questions

Why fit a coolant filter to a diesel engine?

Some diesel engines can have leftover casting sand and other particles in the cooling system. A coolant filter catches them before they settle in the radiator and oil cooler, and the filter is easy to check at service.

What is the benefit of upgraded intercooler pipes?

Stock pipes and couplers can flex or blow off at higher boost. Stronger pipes and better couplers seal more reliably, so the engine gets the boost it is tuned for.