2011-2016 GM 6.6L DURAMAX LML
The DDP CP4-421 Remanufactured CP4 Injection Pump is a direct replacement for your 2011-2016 GM 6.6L Duramax LML. This pump comes ready to install provides you with the same output and specifications as the factory unit.
Stock Power Levels / Fuel Output
1-Year Unlimited Mileage Warranty