2019-2020 Ram 6.7 Cummins CP4 Fuel Pump Failure Kit with S&S Diesel Motorsport CP3 Conversion Kit


$8,699.99 $6,999.99

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2019-2020 Ram 6.7 Cummins CP4 Fuel Pump Failure Kit with S&S Diesel Motorsport CP3 Conversion Kit

Shipping Note: Standard shipping on this kit is Ground due to size & weight.  Expedited shipping options are available (prices calculated based on delivery address) and will be displayed on the checkout page.

Core return is required for the 6 injectors, CP4 pump, and high pressure fuel lines.

Kit Details

Click HERE for CP3 Conversion Kit Installation Instructions

The 2019-2020 Ram 6.7L Cummins engine is prone to the same types of fuel system failures that have plagued other CP4-based systems. CP4 pump failure can occur when DEF or another foreign substance is added to the fuel system. The CP4 pump has also been known to fail due to design flaws which allow for premature internal wear and at times, catastrophic failure. This kit provides a complete repair solution for CP4 pump failure, DEF contamination, or water-in-fuel contamination on your 2019-2020 6.7L Cummins.

Many years of engine and fuel system development experience at Cummins compelled our design team to create a refined solution around the bullet proof Bosch CP3 pump, that has a more befitting reputation. As the base component for our high-pressure pumps, the CP3 has proven to withstand extreme pressure, extreme RPM, and extreme environmental conditions; making it the preferred hardware for the S&S 2019-2020 RAM durability solution.

At the heart of the S&S Diesel Motorsport No Tuning Required 2019-2020 RAM CP3 Conversion Kit is a brand-new Bosch CP3NH base pump that is internally modified for improved durability, high speed performance, and tuning-free rail pressure control. The ultra-reliable CP3 is combined with OE-grade components for a truly refined kit that looks as if it had come out of the Cummins Mid-Range Engine Plant in Columbus, IN.

This kit is comprised of 100% new OE parts with no remanufactured components. Simply flushing the fuel system is inadequate, and could lead to residual contaminants in your fuel system.  Contamination is the number one cause of repeat injector failure. Replacing all of the fuel system components is the only way to prevent recurring contamination issues.

Each component carries a three-year warranty. Information about warranty policies can be found HERE.

  • Genuine Bosch® OEM New Injectors (6)
  • S&S Diesel Motorsport CP3 Conversion Kit
  • Genuine Bosch® OEM New Fuel Rail
  • Genuine Ram/Cummins OE New Fuel Feed Tubes (6)
  • Genuine Ram/Cummins OE Refurbished Rail to Tube Fuel Lines (6)
  • Genuine Mopar Fuel Filter Cartridge


Component Details

Genuine Bosch® OEM New Injectors 

These are brand new Bosch® injectors. Bosch® is the Original Equipment Manufacturer for Cummins. These are the highest quality, most reliable, genuine replacement injectors for your 2019-2020 Ram 6.7 L. They are backed by a three year, unlimited-mileage warranty. Information about warranty policies can be found HERE.

Bosch® Part # 0445124047, 0 445 124 047 (Standard Output) 0445124039, 0 445 1240 039 (High Output)

Replaces the following part numbers:

R8504672AA, R8444791AA, 68444791AA, 5364205NX, 5364205PX, 5364205 (Standard Output)

R8444790AA, R8504671AA, R8444790AA, 68444790AA, 5364204NX, 5364204PX, 5364204 (High Output)

S&S Diesel Motorsport CP3 Conversion Kit

  • No calibration needed
  • Direct drop in for 2019-2020 RAM with Cummins
  • CARB Approved – Legal for use in California
  • Improved durability over stock CP4.2
  • High-speed optimized pump for 1.5 x engine RPM overdrive
  • OE-quality injection molded ECU mount
  • OE-style quick-connect fittings and braided supply line
  • Autofrettaged high-pressure fuel line
  • Brand new latest generation Bosch CP3NH base
  • Proprietary drive gear and pilot preinstalled on CP3

Click here for the S&S CP3 Installation Guide  

Genuine Bosch® OEM New Fuel Rail

This is a brand new Bosch® fuel rail. Bosch® is the Original Equipment Manufacturer for Cummins.

Bosch® Part # 0 445 226 167

Cummins Part # 5348915

Mopar Part # 68447760AA

Genuine Ram/Cummins OE New Fuel Feed Tubes

Brand new OEM connector tubes with o-rings. Cummins requires that these be changed when replacing your injectors. Re-using old tubes can lead to leaks, contamination, and premature injector failure.

Bosch® Part # F 00R J01 831

Cummins Part # 2872288, 5473265

Mopar Part # 68417030AA

Refurbished Genuine Ram/Cummins OE Rail to Tube Fuel Lines

This is a complete refurbished set of OEM Cummins high pressure fuel lines. Replacing the fuel lines helps prevent premature injector failure. Core return is required for these fuel lines.

Cylinder # 1: 5585171, 68479996AA

Cylinder # 2: 5585172, 68479997AA

Cylinder # 3: 5579140, 68479998AA

Cylinder # 4: 5585174, 68479999AA

Cylinder # 5: 5585175, 68480000AA

Cylinder # 6: 5585176, 68480003AA

Genuine Mopar Fuel Filter Cartridge

Cummins Part # 5260529

Mopar Part # 68157291AA