S&S Diesel Motorsport No Tune CP3 Conversion Kit without Pump RAM-CP3-KIT | 2019-2020 Cummins 6.7L

S&S Diesel Motorsport® 2019-2020 RAM 6.7L Cummins No Tune CP3 Conversion Kit

Cummins has a proven reputation for rock-solid durability and worry-free performance. The latest generation 6.7L Cummins reinforces that reputation with its CGI block, stronger crankshaft, redesigned connecting rods, and 2,000 bar fuel system. However, the weak link in this system is the Bosch CP4.2 high-pressure pump, known for premature failure and catastrophic fuel system damage caused by metal debris.

To solve this, S&S Diesel Motorsport® engineered the No Tune CP3 Conversion Kit, built around the bulletproof Bosch CP3 pump. The CP3 has decades of proven reliability under extreme pressure, RPM, and environmental conditions, making it the perfect durability solution for your RAM.

Key Features:

• Brand-new Bosch CP3NH pump (not remanufactured)
• Internally modified for improved durability and high-speed performance
• Tuning-free rail pressure control — no custom tuning required
• OE-grade components for a factory-style fit and finish
• CARB-compliant (EO #D-756-5)
• Durability upgrade that does not change engine output
• Designed to look and function as if it came from the Cummins Engine Plant

Competition Options:

The next-generation 6.7L Cummins front cover over-drives the pump at a 1.5:1 ratio, making it an excellent platform for competition builds. To take advantage of this, S&S offers high-speed optimized competition CP3 pumps with specific RPM limits:

• 10mm High Speed – 8,000 pump RPM | 5,333 engine RPM
• 12mm High Speed – 7,000 pump RPM | 4,667 engine RPM
• 14mm High Speed – 6,000 pump RPM | 4,000 engine RPM

Install Kit Availability:

Already have a CP3 pump? The install kit can be purchased separately. For best performance, S&S recommends pairing with their high-speed optimized CP3 pumps. Other pumps may not support high-speed operation and may plateau past 3,500 pump RPM.

The S&S No Tune CP3 Conversion Kit is the must-have durability upgrade for 2019–2020 RAM 6.7L Cummins owners looking to eliminate CP4.2 failure risk without requiring tuning or sacrificing emissions compliance.

Return Policy: All returns (not core returns) are subject to a 20% restocking fee. Refunds will only be issued once the item is received in new and unused condition.