DDP DDPCP4-441 FORD 6.7L 15-18 STOCK CP4

The DDPCP4-441 from Dynamite Diesel Performance is a premium-quality Bosch CP4.2 high-pressure fuel injection pump built specifically for the 2011–2016 GM 6.6L LML Duramax platform. Whether you're maintaining a factory truck or building for improved reliability, this pump delivers OEM-equivalent performance and strict internal balancing to ensure consistent fuel delivery under load.

Perfect for stock and lightly modified trucks, the DDPCP4-441 is designed to restore lost power, fix hard-start issues, and prevent catastrophic CP4 failure.

Vehicle Fitment

•  2011–2016 Chevrolet Silverado 2500HD / 3500HD – 6.6L Duramax LML

•  2011–2016 GMC Sierra 2500HD / 3500HD – 6.6L Duramax LML

•  Not for use with 2017+ L5P engines

 Cross-reference OEM #: 12661059, 0445010641

Key Features

•  Direct replacement for OEM Bosch CP4.2

•  Precision-balanced and tested for optimal pressure and flow

•  Compatible with factory ECM and fuel system

• Prevents injector scoring and system failure when installed correctly

• Core charge applies if remanufactured

Important Notes

• A clean fuel system is essential. Replace fuel filters and flush lines when installing.

• Consider a CP4 disaster prevention kit to protect injectors and lines.

• Proper priming and bleeding procedures must be followed after installation.

 Restore factory performance and protect your Duramax investment with Dynamite Diesel Performance’s DDPCP4-441 CP4 injection pump.