Was contemplating a 2025 6.7 Cummins... Nope!
Mar 24, 2025 · We also know from the Ford 6.7 vs GM LML situation, the CP4 survivability tended to be better with good filtration and lift pumps. Both of those are present, so just like on the Fords, it should …
High Pressure Fuel Pump CP4 To CP3 Downgrade issue Ram 2500 6.7 …
Feb 10, 2025 · My dealership preformed the recall to change out the High-pressure Fuel Pump CP4 and install the CP3 on my 2019 Ram 2500 6.7 Cummins with 130K on it. This...
Official 2025 Ram HD | Page 11 | Ram Heavy Duty Forum
Dec 9, 2024 · We will see. For all we know, this “CP8” might simply be a cam lobe change and a name change to escape the CP4 hate. I’ve heard many times before that Bosch isn’t the most pleasant to …
The Infamous New Bosch CP4.2 Fuel Pump - RAM FORUM
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 …
Article on 2025 Ram HD new 6.7 Cummins changes
Dec 4, 2024 · CP4 eh? Looks like a CP4. But it’s not a CP4. CP8 is the new pump. No specs on it yet, and it isn’t even in Bosch’s system yet as far as I can tell. I’d love to get a look at the internals but I …
6.7 Cummins lifter issues 2019 3500 - ramforum.com
Nov 1, 2013 · Had the dreaded ticking noise on my 2019 3500 ram, 245,000 km, went to the dealer, I need you to clean up all the overdue recalls and look into this ticking. Dealer says, its your CP4, and …
Y78 CP4 Pump Recall - Power Steering Fluid Leak
Oct 24, 2022 · I just had the CP4 pump replaced and noticed some oil drips in the garage. Looking around the engine bay, it appears to be power steering fluid and coming from the general area of the …
Fuel Additive | Ram Heavy Duty Forum
May 28, 2019 · Should i be adding some fuel additive with lubricity for the cp4.2 pumps? i know there is alot of hype about the past issues with the cp4 and dont want to...
CP4 pump !!!! | RamForum.com | Dodge Ram Forum for Truck Owners ...
Jan 4, 2021 · Thanks for your responses. I'll probably keep the CP4 pump up till about the time the basic warranty expires, then I'll purchase a CP4 to CP3 conversion kit to replace it unless Ram or …
CP4 to CP-ISB21S3 (revised CP3) change for 2021 6.7L Diesel Trucks ...
Dec 19, 2020 · CP4 to CP-ISB21S3 (revised CP3) change for 2021 6.7L Diesel Trucks -- Merged Threads Viper67 Dec 19, 2020 1 …