Choate Engineering Performance builds full runner 5.9 Cummins diesel engines for high performance and unmatched durability. Using top-quality components, these engines deliver maximum power and reliability in the toughest conditions. Perfect for motorsports, off-roading, and heavy-duty work, they give you the performance to take on any challenge. Elevate your performance with a Choate Engineering full runner diesel engine—built for power, strength, and reliability when it counts!