S&S Diesel has developed a solution for CP4.2 high-pressure pump failures that have plagued the LML Duramax engine. The S&S solution is to remove the problem before it becomes a problem, by replacing the CP4.2 with a tried and true, bulletproof CP3 high-pressure fuel pump.
CP4 high-pressure pumps are the Achilles heel of the LML Duramax engine because of high failure rates and commonly taking out the entire, very costly, high-pressure system with it (injectors, rails, lines).
- Includes CP3 Pump
- No Tuning Required
- Maintains Factory Emissions Equipment
- Replaces Failure Prone Bosch CP4 Pump With A More Reliable CP3 Pump
- Includes All Necessary Hardware, Extension Harnesses, and Installation Instructions