Quick Ship SKU #: SSDM-LML-CP3-CARB S&S Diesel Motorsport 50 State CP3 Conversion 11-16 GM 6.6L Duramax LML

S&S Diesel Motorsport, renowned worldwide for its expertise in common-rail diesel injection, has devised a solution to address the persistent issue of CP4.2 high-pressure pump failures afflicting the LML Duramax engine. Their approach tackles the problem preemptively by replacing the problematic CP4.2 with the dependable and proven CP3 high-pressure fuel pump. The CP4 high-pressure pumps have emerged as the Achilles' heel of the LML Duramax engine due to their elevated failure rates, often resulting in the catastrophic failure of the entire, and notably costly, high-pressure system, including injectors, rails, and lines. S&S Diesel Motorsport introduces the industry's CARB-complaint (EO #D-756) 50 State CP3 conversion for the LML. This is a comprehensive solution that provides all the necessary hardware for seamlessly swapping out the troublesome CP4 with the robust CP3, and it requires no alterations to tuning while preserving factory emissions control equipment at an affordable price.