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Dynomite Diesel DCR Pump Conversion Kit (DDPL5P-DCRKIT)
Protect your 2017–2023 6.6L L5P Duramax from one of its most common and costly failure points. This complete conversion kit replaces the factory HP4 high-pressure fuel pump with a more durable DCR (Diesel Common Rail) pump designed for greater resistance to contamination, wear, and debris.
The factory HP4 can fail internally and send metal particles through the rails and injectors, often resulting in thousands of dollars in fuel-system repairs. The DCR pump uses a robust two-piston eccentric drive design that reduces friction and wear compared with the original setup. It is engineered to maintain stable, factory-spec rail pressure across the rpm range while offering improved tolerance for real-world fuel quality and heavy-duty use.
This is a true direct-fit, bolt-on solution. No tuning or ECM recalibration is required. The kit includes the DCR pump plus the necessary high-pressure and low-pressure fuel lines and hardware for a clean, OEM-style installation.
Key benefits
- Helps prevent catastrophic HP4 failure and the resulting damage to injectors and rails
- More contamination- and debris-resistant design than the stock pump
- Maintains factory rail pressure and performance for towing, daily driving, and long-term reliability
- Simple installation with no custom fabrication or software changes
- Cost-effective protection versus a full fuel-system replacement
Fitment 2017–2023 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L Duramax L5P.
Ideal as a preventative upgrade or as a replacement after an HP4 failure. Built by Dynomite Diesel for owners who want long-term fuel-system confidence.
Dynomite Diesel DCR Pump Conversion Kit (DDPL5P-DCRKIT)
Protect your 2017–2023 6.6L L5P Duramax from one of its most common and costly failure points. This complete conversion kit replaces the factory HP4 high-pressure fuel pump with a more durable DCR (Diesel Common Rail) pump designed for greater resistance to contamination, wear, and debris.
The factory HP4 can fail internally and send metal particles through the rails and injectors, often resulting in thousands of dollars in fuel-system repairs. The DCR pump uses a robust two-piston eccentric drive design that reduces friction and wear compared with the original setup. It is engineered to maintain stable, factory-spec rail pressure across the rpm range while offering improved tolerance for real-world fuel quality and heavy-duty use.
This is a true direct-fit, bolt-on solution. No tuning or ECM recalibration is required. The kit includes the DCR pump plus the necessary high-pressure and low-pressure fuel lines and hardware for a clean, OEM-style installation.
Key benefits
Helps prevent catastrophic HP4 failure and the resulting damage to injectors and rails
More contamination- an[...]
Dynomite Diesel DCR Pump Conversion Kit (DDPL5P-DCRKIT)
Protect your 2017–2023 6.6L L5P Duramax from one of its most common and costly failure points. This complete conversion kit replaces the factory HP4 high-pressure fuel pump with a more durable DCR (Diesel Common Rail) pump designed for greater resistance to contamination, wear, and debris.
The factory HP4 can fail internally and send metal particles through the rails and injectors, often resulting in thousands of dollars in fuel-system repairs. The DCR pump uses a robust two-piston eccentric drive design that reduces friction and wear compared with the original setup. It is engineered to maintain stable, factory-spec rail pressure across the rpm range while offering improved tolerance for real-world fuel quality and heavy-duty use.
This is a true direct-fit, bolt-on solution. No tuning or ECM recalibration is required. The kit includes the DCR pump plus the necessary high-pressure and low-pressure fuel lines and hardware for a clean, OEM-style installation.
Key benefits
- Helps prevent catastrophic HP4 failure and the resulting damage to injectors and rails
- More contamination- and debris-resistant design than the stock pump
- Maintains factory rail pressure and performance for towing, daily driving, and long-term reliability
- Simple installation with no custom fabrication or software changes
- Cost-effective protection versus a full fuel-system replacement
Fitment 2017–2023 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with 6.6L Duramax L5P.
Ideal as a preventative upgrade or as a replacement after an HP4 failure. Built by Dynomite Diesel for owners who want long-term fuel-system confidence.