After having a CP4 injection pump come apart internally twice in 130,000 miles on my 2500 Duramax I bought a 2018 3500 Cummins with the Aisen tranny. The dealer was pushing me to wait for the 2019 to come out but hearing that they were putting that same CP4 injection pump in the 19s I wouldn't own one for anything. It cost 11k to fix the Duramax the second time. First time was under warranty. It was enough to make a life long Chevy guy buy a Dodge. As of now I'm happy with the Cummins. Its a pulling SOB!
