Choate Engineering Performance builds Full Runner 5.9L Cummins 2003-2004 engines for high power and lasting durability. These engines use top-quality parts to provide maximum performance and reliability in tough conditions. Whether for motorsports, off-roading, or heavy-duty use, they deliver the strength you need to take on any challenge.

Boost your performance with a Choate full runner engine—designed for power, strength, and reliability when you need it most!