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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Enhance the performance and reliability of your 2019–2024 Dodge Ram Cummins 6.7L truck with CPP Diesel’s top-of-the-line CP4 injection pumps and CP4-to-CP3 conversion kits. Our inventory features OEM stock replacement CP4 pumps alongside high-performance Exergy CP3 alternatives available in 10mm, 12mm, and 14mm sizes. These CP3 pumps are designed to deliver enhanced durability and fuel efficiency, making them an ideal choice for various applications, including daily driving, towing, and competitive racing.The factory-installed CP4 pump has been known to experience internal failures that can compromise your engine's fuel system. By switching to a CP3, you significantly increase the reliability and performance of your diesel setup. Our comprehensive CP3 conversion kits come complete with everything you need for a direct bolt-in installation, including all essential hardware, lines, and fittings. This ensures an easy transition and optimal performance from your new pump.Whether you're looking for a pump suitable for stock configurations or require something more aggressive for tuning hobbies, our product range meets all performance needs. Choose an OEM CP3 for reliability or upgrade to an Exergy 10mm or 12mm CP3 for more power. For extreme performance enhancements, opt for the 14mm CP3 pump. At CPP Diesel, all our CP4 and CP3 pumps are rigorously bench-tested for flow and pressure stability, assuring unrivaled quality and service. We’re dedicated to supporting you through the installation process with guidance and tuning recommendations. Elevate your truck's performance today with our dependable injection pumps and conversion kits designed specifically for the latest Cummins models.