2019–2024 Cummins 6.7L CP4 Injection Pumps & CP3 Conversion Kits

CPP Diesel offers CP4 injection pumps and CP4-to-CP3 conversion kits for 2019–2024 Dodge Ram Cummins 6.7L trucks. We carry OEM stock replacement CP4s, high-performance Exergy CP3 pumps in 10mm, 12mm, and 14mm, and complete conversion kits to replace the factory CP4 with a more durable CP3.

Our conversion kits include all necessary hardware, lines, and fittings for a direct bolt-in installation, improving long-term reliability and fueling capability. High-performance CP3 options support street, towing, and competition applications.

Frequently Asked Questions

Why convert from a CP4 to a CP3?

The CP4 pump has a history of internal failure that can send debris through the fuel system. Converting to a CP3 increases durability and fueling performance.

Do your CP3 conversion kits fit 2019–2024 models?

Yes. Our CP3 conversion kits are designed specifically for 2019–2024 Cummins 6.7L trucks, ensuring proper fitment and function.

Which CP3 size should I choose for my conversion?

For stock or towing, an OEM CP3 works well. For higher horsepower, choose an Exergy 10mm or 12mm CP3. For extreme performance, opt for the 14mm CP3.

Do you bench-test your pumps?

Absolutely. Every CP4 and CP3 is bench-tested for flow and pressure stability before leaving our facility.

Do you offer installation support?

Yes. We provide installation guidance and tuning recommendations to ensure your conversion delivers optimal performance.

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