CP3 Conversion Kits

The LML CP3 conversion page is for owners who already know they want to move away from the factory CP4 setup. The goal is not just more fuel; it is a more dependable high-pressure pump layout for a truck that tows, works, or has higher mileage.

Most conversion kits include the CP3 pump itself along with the lines, fittings, brackets, and calibration-related parts needed to complete the swap. Many owners make the change before the original CP4 ever fails, especially on trucks used for towing or long-distance travel.