The CP4 is susceptible to catastrophic failure. When disaster strikes, the entire fuel system requires replacement after metal debris from the failed pump spreads throughout. Cleaning the tank, replacing lines and injectors, and, of course, a new pump can end up costing you in excess of $10,000 in repairs! The BD Diesel LML Duramax CP3 Conversion kit allows owners to backdate their injection pump from the unreliable CP4 to the proven CP3 pump! Available as a component install kit without a CP3, or as a complete kit with a CP3 that does not require tuning on stock engines for operation!
