68RFE Shift Kit 1999-18, new and ready to install. Fits the 68RFE. Ships fast from the USA.
Ram 2500 and 3500 Cummins owners usually find this kit while chasing a burnt overdrive clutch, a lockup that slams in, or a converter clutch slip code that keeps coming back after a rebuild. This is the TransGo SK 45RFE-A, the valve body and pump repair kit TransGo lists for every 45RFE, 545RFE, 65RFE, 66RFE and 68RFE built from 1999 through 2018. For a 68RFE that means the 2007 to 2018 trucks with the 6.7L Cummins.
The 68RFE has no adjustable bands or throttle cable, so a shift kit for it works differently from older kits. It does not add a firm-shift mode. It replaces the parts in the hydraulics that wear and leak, so the computer's clutch pressures actually reach the clutches. The kit includes a new self-cleaning solenoid switch valve and end plug for the valve body, a heavy-duty accumulator cover plate, TransGo accumulator seals, a spacer washer for the overdrive accumulator with two spare springs, and recalibrated TCC accumulator springs and retainer. On the pump side it adds a drop-in torque converter limit valve system, and in the input drum it adds a heavy-duty flat snap ring for the underdrive/overdrive pressure plate. The switch valve matters most on a diesel. It is the valve that hands the low/reverse solenoid over to converter clutch control, and when its bore wears, pressure leaks between those two circuits.
Pull codes and freeze-frame data first. A pressure switch or switch valve code with good solenoid resistance points at the hydraulics this kit repairs; an open or shorted circuit points at the solenoid pack or harness. Our 68RFE shift solenoid symptoms and testing guide walks through telling the two apart. If the complaint is a harsh shift with no codes, rule out software and adaptives with the 68RFE harsh shift causes guide before opening the pan.
For the 68RFE this kit fits 2007 through 2018. It does not fit 2019 and later trucks: those use a blue-connector solenoid pack, a separate converter clutch solenoid, and different valve body hydraulics, and TransGo makes a separate SK 68RFE-19UP kit for 2019-up. Within 2007-2018, valve bodies came with either 5 or 7 check balls, and switch valves are .420 or .453 inch in diameter, so measure yours before you start. If you are unsure which you have, send us your year and VIN. More parts for this unit are on the 68RFE parts page.
| Fits | 68RFE 1999-18 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. 2019 and later 68RFE units have different valve body hydraulics and a separate converter clutch solenoid. Use the TransGo SK 68RFE-19UP kit for those trucks.
The SK 45RFE-A covers the whole RFE family, which began with the 45RFE in 1999. The 68RFE itself arrived in 2007, so for a Cummins truck the coverage is 2007-2018.
Not in the way older band-and-cable kits did. Shift timing and firmness on the 68RFE come from the computer. This kit restores pressure that wear lets leak away, so shifts stay consistent and the clutches stop slipping.
The valve body parts can be reached with the pan and valve body off, but the converter limit valve is in the pump and the snap ring is in the input drum, so the full kit is meant for a rebuild.
If the overdrive clutch is burnt, replace the frictions and steels. A complete gasket and seal kit, a new filter and fresh ATF+4 belong in the same job.
