S&S Diesel Motorsport 14 mm CP3 Injection Pump, High Speed — 2003–2018 Dodge / Ram 5.9L and 6.7L Cummins — CP3-CU-14-HS

S&S Diesel Motorsport 14 mm CP3 high-pressure injection pump, High Speed build, for the 2003–2018 Cummins.

Past a certain power level the stock CP3 simply cannot move enough fuel, and no amount of tuning gets around a pump that has run out of displacement.

S&S Diesel Motorsport build a series of 14 mm CP3 high-pressure pumps for exactly that problem — extreme-horsepower applications where the fuel demand is well beyond anything the factory pump was designed for.

The High Speed build is for engines that spend time at the top of the rev range, where pump stability is what decides whether rail pressure holds.

This is specialist hardware for a built engine. It belongs in a combination where the injectors, turbo and tuning have all been sized to match.