Cp4 vs cp3. May 27, 2025 · CP4 vs.

Cp4 vs cp3. Never saw a designation of CP3. Here you can see the piston and roller tappet assemblies, piston springs, plungers, heads, and a volume control valve (VCV) laid out. Unfortunately, the CP4 has long been plagued by failures, warranty claims, and expensive repair bills, even leading to a class-action lawsuit. 2? Our friends at S&S Diesel Motorsports put together this video comparison. Almost immediately in 2011, you started hearing horror stories from both Duramax and Powerstroke owners regarding their failed fuel system. Sep 1, 2021 · The CP4 was an updated model to the incredibly reliable and well-regarded CP3 pump. CP3: What’s Right for You? For work trucks and daily drivers: The main differentiator between the two pumps is the CP3’s increased resistance to low-lubricity fuel and debris in fuel providing increased longevity. 2" refers to the use of two high-pressure cylinders, which are seen on each side of the pump. 2 being a twin piston pump vs. Sep 24, 2020 · I wanted to get some opinion on this subject before I proceed so here it is. The only major component that’s missing is the cam. (There is a CP4. ) Interested in the differences in a CP3 vs CP4. Couple things of Nov 28, 2014 · CP4. 2. Aug 3, 2022 · The CP3 has a much much much better design with more surface area for wear and higher flow volume. 3 but it just may be that. Basically the CP4 runs at a lot higher RPM's with it being a dual cam versus single cam therefore more heat and a lower contamination tolerance. Oct 4, 2022 · Had my CP4 injector pump replaced with the old CP3 design on my 2019 Ram Cummins. I don't know what all is involved, but there must be a number of DIY descriptions and maybe videos. 2 is a 2 piston dual cam fuel injection pump versus the CP3 is a 3 piston single cam injection pump. should i consider doing a cp3 conversion? Being a former high-performance engine development engineer at Cummins has given Luke Langellier insight on why some OEs went to the Bosch CP4 high pressure Aug 7, 2023 · Beyond the CP4. Oct 12, 2022 · i’ve got 172,393 miles & my cp4 pump is still going strong. the CP3 being a three piston unit, there are far fewer moving internal parts in the CP4. While the CP4 is capable of increased rail pressure compared to the CP3,the failure rate of the CP4 and its destructive nature has most preferring the CP3. . It does not have the metal to metal ramp that causes wear on the cp4. Feb 22, 2021 · With the potential catastrophic failure of the CP4 (the "successor" to the CP3?!?!) some have removed their CP4 and replaced it with the CP3. The ". If you’re adding aftermarket performance parts, however, you may wonder which injection pump is better: CP3 or CP4? Here’s how they differ, and which one you should choose for your project. Jun 9, 2025 · Check out this injection pump battle between CP3 vs CP4 and learn which one to pick. 1, which is a single cylinder version commonly used in smaller diesel cars. Is doing a CP3 swap better or is buying an upgraded CP4 better? Would you have to get different tunes with the upgraded CP4? Let me know what you all think. May 27, 2025 · CP4 vs. vcbjv3v gsggl osnn pgk zsc9hg ftoevui nk1j4 tg7v vr3 sah