68RFE Shift Kit 1999, new and ready to install. Fits the 68RFE. Ships fast from the USA.
A 6.7L Cummins Ram that bangs into converter lockup, sets converter slip codes, or sits overnight and then takes a moment to pull into gear is often suffering from wear in the pump, not the clutches. This listing is the TransGo SK 45RFE-A. TransGo dates it from 1999 because that is when the RFE family started with the 45RFE, but for the 68RFE it covers the 2007 through 2018 Ram 2500, 3500 and cab-chassis trucks. Its best trick is saving a pump that most shops would throw away.
The torque converter limit valve in the pump cover controls how much pressure feeds the converter. Diesel heat and pressure wear its bore oval, and once it leaks the converter clutch applies harshly, slips, and cooler pressure runs high. TransGo says the bore often looks so wiped out that the pump appears to need replacing. Instead of machining it, the kit drops a new bushing, gold ball, orange spring and V-notch retainer into the worn bore. There are two bushing types to match the original valve type, so the system works regardless of how much the bore has worn. The kit also recalibrates the TCC accumulator in the pump with a new slotted retainer and three plain springs, so lockup comes in smoothly, and it includes a heavy-duty accumulator plate. For the input drum, it replaces the tapered underdrive/overdrive pressure plate ring that can break and pop out with a .091-.094 inch flat snap ring. The valve body parts in the kit, including a new switch valve, handle the rest of the converter control circuit.
Read line pressure, commanded versus actual, on a scan tool. GEARS Magazine lists a healthy idle at about 60-70 psi with the pressure control solenoid around 22-24 percent duty cycle, and a solenoid working far harder than that to hold pressure points to an internal leak. Our 68RFE pump failure guide covers pump wear checks, and the 68RFE Ram 3500 shift problems guide separates software and adaptive complaints from hardware failures.
On the 68RFE this kit covers 2007-2018 only. 2019 and later trucks moved to a blue-connector solenoid pack with a separate converter clutch solenoid, and need the TransGo SK 68RFE-19UP. Early and late pumps are both covered, but pull your TC limit valve and identify it before choosing a bushing. If you are unsure your transmission is a 68RFE and not an Aisin, send us your year and VIN. The rest of our parts for this unit are on the 68RFE parts page.
| Fits | 68RFE 1999 |
| Part type | Shift Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes, both are the TransGo SK 45RFE-A. The year on this listing is the start of the RFE family; on a 68RFE it fits 2007 through 2018.
Usually not. The drop-in bushing in this kit seals the valve inside the worn bore, which is the main reason rebuilders use it on high-mileage diesel pumps.
If the cause is pump TC limit wear, TCC accumulator calibration or switch valve leakage, yes. Rule out software and converter problems first; a flash from the dealer fixes some lockup complaints.
No. 2019 and later 68RFE trucks need the SK 68RFE-19UP kit because the converter clutch has its own solenoid.
ATF+4 only, for assembly and fill. TransGo notes these units are fluid sensitive, and frictions should be soaked in ATF+4 before assembly.
