S&S Diesel 2019-2020 RAM CP3 Conversions
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Cummins has a trust-worthy reputation for rock-solid durability and worry-free performance. The latest generation 6.7 L Cummins reinforces that reputation with a CGI block, stronger crankshaft, redesigned connecting rods, and 2,000 bar fuel system.
The one chink in the newly-revised armor is the Bosch CP4.2 high pressure pump. In contrast to Cummins, it has a bad reputation for premature failure and destroying the entire high-pressure fuel system with fine metal debris, when it does.
Many years of engine and fuel system development experience at Cummins compelled our design team to create a refined solution around the bulletproof 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+ RAM durability solution.
At the heart of the S&S Diesel Motorsport 2019-2020 RAM No Tune 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.
The No Tune kit is a must-have, CARB-compliant (EO #D-756-5), durability improvement that does not change output. The next generation 6.7 L Cummins features many design improvements that make it an excellent choice for competition builds, including a front cover that over-drives the pump at a 1.5:1 ratio.
To take advantage of this feature, S&S is offering kits with high-speed optimized competition pumps. Higher pump speed equals higher output, yet there are RPM limits for each size pump:
- 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
The install kit can be sold separately for those who already have CP3 pumps, with the understanding that it will work best with S&S high-speed pumps. Other CP3 pumps may not be optimized for high-speed operation and output could flatline past 3,500 pump RPM.
2019-2020 RAM CP3 Conversions | SKU: RAM-CP3-NOTUNE

