Apr 11, 2022 · Of course the S&S CP3 pump is a beast compared to even the oem CP3. Good luck with the pump/injectors. I would call Ram. Hopefully they will cover the cost of the repairs since they …

Jul 12, 2022 · So, I went to my dealership in Jacksonville FL several weeks ago for the CP4 recall on my 2019 2500. They said they must inspect my truck to even order the parts. Then it took 3 weeks to get …

Dec 28, 2020 · More likely the CP4 with 6 dots. I am looking forward to replacing it with CP3 or CP4.2 without charge from the Chrysler FCA warranty. I heard that Bosch got a lawsuit recently for CP4 …

Aug 21, 2020 · The fuel pump is the only part of the system that hasn't been upgraded and with the increase in pressure the new CP4 is delivering, compounded with less fuel and a new design, I feel …

Mar 6, 2017 · Fuel Pump: The pump resembles the CP4, but it’s a new design. Let’s hope Cummins engineers have addressed prior reliability concerns. Engine Block: Transitioning from compacted …

Mar 24, 2025 · But the pump is solid. From looking at the pictures, the Bosch "CP8" is our old friend with a new name - the CP4, which has come back to haunt us yet again. I'll give it to the sales folks over …

Oct 4, 2022 · Had my CP4 injector pump replaced with the old CP3 design on my 2019 Ram Cummins. Never saw a designation of CP3.3 but it just may be that. Couple things of interest. One is there was …

Dec 18, 2021 · 2019/2020 CP4 injector pump recall updates??? Jump to Latest 17K views 44 replies 19 participants last post by Rick E Jan 8, 2023 R

Aug 29, 2020 · Hello. I am very new to the RAM forum and have worries about the new Bosch CP4.2 Fuel Pump that is being used on the new High Output Cummins 6.7, in the Ram 3500 Duelly, which I …

Feb 8, 2021 · Hello, have been reading a little on the cp4 issue. I have a 2019 megacab 3500 diesel (850) and wondering if it has the cp4 pump? Admittedly i know nothing about diesel engines or the …