Fits: 2007.5-2018 Dodge 6.7L Cummins
The heart of the 68-RFE transmission is the pump, installing the ATS BilletProof 68- RFE Billet Pump Housing is one of the key elements to having a reliable 68-RFE transmission. This part comes complete with a serviceable pump drive bushing. You will need to remove the two idler gear pins from your original pump and press them into the new billet pump housing.
The factory 68-RFE pump housing is not large enough to supply the transmission with the required oil volume that it needs to keep pressure high when the engine is at a low RPM. This causes the 68-RFE transmission to run low on oil pressure when pulling heavy loads in 4th, 5th and 6th gears. The low oil volume and pressure causes the overdrive clutches to slip causing 5th and 6th gear failure. The other issue with the factory pump is the cast material that is used is weak and unstable. The factory pump also does not have a pump bushing, instead they use the factory cast aluminum as the pump bushing surface. The inexpensive cast material warps over time causing hydraulic cross leaks between the pump half and the steel separator plate. These cross leaks cause many issues that end in transmission failure.
Some of these issues are transmission overheating, converter clutch applied when the vehicle is stopped, rationality codes, cooler flow loss, and delayed engagement to name a few. ATS has redesigned the 68-RFE pump to eliminate all of these issues, and it’s manufactured out of billet tool-grade aluminum. The tolerances are controlled to provide maximum oil pressure and volume. The tight tolerances guarantee our billet pump will provide 100% of the pressure that the TCM is requesting during low engine RPM operation ensuring the clutch packs have adequate pressure to keep them clamped even in the worse conditions such as hot operation and low engine RPM while pulling extreme loads.