Ram 2500 / 3500 HD · Research
Cummins
Issues & Fixes.
Ram Cummins inline-sixes — 5.9L and 6.7L platforms. On Cummins, the transmission is often as important as the engine: 48RFE, 47RFE, and 68RFE each have their own failure profiles. Plus the heater core leaks and TIPM electrical issues Ram owners know too well.
Generation // 01
Other
47RFE Transmission Failure (5.9L Cummins, 2003–2007)
48RE / 48RFE Transmission Failure (5.9L Cummins HO, 2003–2007)
68RFE Transmission Failure (6.7L Cummins, 2007.5–Present)
Cummins Heater Core Failure (Coolant on the Passenger Floor)
Dodge/Ram TIPM Electrical Issues (Random Faults, No-Start, Phantom Behavior)
Don’t See Your Issue?
We don’t publish every fault we’ve ever worked on. If your Cummins is doing something weird and you can’t find it here, call us — we’ve probably seen it.