2021 Ram 3500 H.O.

[ib516]

1075 tq and 37,100# towing.

Video

[ShinerBock]

Although I will say that with the power output of the 2500 or standard output Cummins, a CP3 would still be doable while meeting emissions. I don't think the same can be said with the HO power ratings. Maybe the CP4 is only on the HO and the CP3 on the standard output. Just a theory if that truly is a CP3.

[ShinerBock]

Cummins12V98 wrote:

So it’s official the 21’s will have a CP3.

I would not say that because people purposely post false stuff on the internet all the time. I know a few instances where it was click bait and if you clicked on the pics then it would send you to a certain page where they are selling something. I would have to look at the part number on the ESN or go down to the dealer and see it for myself before I would say for sure, but that is just me.

I would trust you enough if it were your picture or most of the regulars here, but not someone I don't know from another forum.

[Cummins12V98]

ShinerBock wrote:

Cummins12V98 wrote:
Better?

I was wrong, that is a quick disconnect fitting that the factory would use.

So it’s official the 21’s will have a CP3.

[ShinerBock]

Cummins12V98 wrote:
Better?

I was wrong, that is a quick disconnect fitting that the factory would use. If that is a CP3, I wonder how they got the pressure to 29k and why my supplier says 2003-2018 CP3's aren't being made new anymore.

[Cummins12V98]

Better?

[ShinerBock]

Cummins12V98 wrote:
Shiner, this is a pic off the TDR that the guy took today off a 2500 2021 model. What say you now?

I would still say that I would have verify it with my own eyes. Tell that guy to give you an ESN of the 2021 that he took that pic of and I can tell you for sure that it is a CP3 or CP4. Do you have a better picture of that? I cannot tell if that is a quick disconnect fitting or not. It kind of looks like it is versus the video from earlier, but is too dark.

[4x4ord]

ShinerBock wrote:
According to FCA, they did not change the pump from a CP4 to a CP3. They did, however, change the from an asymmetrical to a symmetrical cam design. A CP3 would not look identical to a CP4.


FCA TSB 18-060-20



Drivingline article on 2021 Cummins

TFL says 400 horsepower, Drivingline says 420 and Ram says 430. They all say 1075 lbft of torque but no one says at what rpm max torque is produced. Then on the Ford side some Ford publications say peak HP is obtained at 2600 rpm whereas other Ford publications say 2800. the same goes for peak torque ... is it 1600 or 1800? If these numbers are so important you'd think they would get there ducks in a row before publishing them. They used to publish torque curves. At least if they gave us rpm along with peak torque and power values we could speculate what the torque curve looks like.

[Cummins12V98]

Shiner, this is a pic off the TDR that the guy took today off a 2500 2021 model. What say you now?

[spoon059]

I was under the impression that the issues Ford was having with the CP4 was due to less than ideal filtration. Not knocking Ford, but the Ram filtration setup seems much more robust. Have their been any widespread issues with Ram using the newer CP4 pump?

[ShinerBock]

According to FCA, they did not change the pump from a CP4 to a CP3. They did, however, change the from an asymmetrical to a symmetrical cam design. A CP3 would not look identical to a CP4.


FCA TSB 18-060-20



Drivingline article on 2021 Cummins

[Cummins12V98]

"FCA training centers 6.7 update class says Cp3 will be back on the 2021 models"

Like this???

[Me_Again]

ShinerBock wrote:
This is the type of fitting the factory would use.

A quote for Bob4x4 on TDR "Revisiting this discussion,the FCA training centers 6.7 update class says Cp3 will be back on the 2021 models.The guys doing PDI’s say it’s true"

[4x4ord]

According to Ram’s website the 2021 Cummins high output will have 430 HP. That is getting very close to being enough to keep up with the Powerstroke.

[ShinerBock]

This is the type of fitting the factory would use.

[ShinerBock]

4x4ord wrote:

ShinerBock wrote:
Fake news. That is an aftermarket CP3 installed to make it look like it was factory. The line with all the paint would not be that type of fitting. The factory uses quick disconnect safety lock style fittings, not a flair style fittings. Although I will give them extra credit for the quality control style paint on the fitting.

Man, people just believe anything they see on the internet these days without verifying it first.

Just like that and hope is gone.

Sorry, but there is no way a factory would use that type of fitting. It would cost them lots of time and money to have someone keep spinning a wrench to install that line on every truck versus a quick disconnect fitting that takes a second or two to install.