68RFE Pump 2007-68

Many 68RFE pumps get a second life with a bushing and new gears, but not all of them can be saved. When a rebuilder opens a Ram 6.7L Cummins transmission and finds the pump pocket scored, the gears chipped, or the body cracked, the only real fix is a complete pump. This listing is a new 68RFE pump assembly, shown with its stamped steel front housing, for trucks from the 2007 introduction of the 68RFE onward. It is the part to buy when you are dealing with low line pressure, slipping in every gear, delayed engagement or a pump whine, and the old pump has been ruled out for repair.

What the pump does in a 68RFE

Every pound of pressure in the 68RFE starts here. The converter hub turns the pump's center gear, which drives two outer gears that push fluid into the main pressure circuit. The valve body and pressure control solenoid regulate that flow, but they can only work with the volume the pump delivers. The pump body also supports the stator shaft the converter rides on, which is why converter hub and seal condition are tied so closely to pump health.

Symptoms of pump trouble

• Engine-speed whine in Park and Neutral
• Slow engagement into Drive or Reverse, worse when hot
• Slipping across all gears rather than in one range
• Actual line pressure stuck below commanded on a scan tool graph
• Pump material on the pan magnet
• Front seal leaks that keep coming back, which can point to a worn bushing or hub

Repair or replace: confirm before you buy

First prove the pump is the problem. With the fluid at operating temperature, compare commanded and actual line pressure; a maxed duty cycle with low actual pressure means supply is short. Then eliminate the cheap causes: a doubled filter O-ring, an incorrect fluid level, and a worn low/reverse switch valve bore. Once the pump is on the bench, inspect two areas separately. Sonnax explains that wear confined to the center gear bore can be machined and fitted with its bushing and center gear, and its heavy duty outer gear set replaces the outer gears, noting replacement gears are not available from Chrysler. Damage to the pocket face behind the gears cannot be repaired with those parts. That is when a complete pump like this one is the right call. Our 68RFE pump failure guide covers the inspection in detail, and the Ram 2500 Cummins common problems guide explains what else to look at while the unit is apart.

Fitment

The listing is labeled 2007-68, which we read as 68RFE applications from 2007 onward; that is how it was supplied to us, and we are not going to pretend it is more specific than that. The 68RFE was revised several times, with notable changes in 2010 and again for 2019, so the safest path is to compare your old pump to the photos side by side, including the housing, bolt locations and stator shaft, or send us your year and VIN and we will confirm it fits before shipping. If it is not the right match, we will point you to the correct one on our 68RFE parts page.

Install notes

• Replace the front seal and check the bushing; set the converter in only after the hub has been inspected.
• Seat the pump evenly in the case and torque its bolts in a crossing pattern.
• Pour fluid into the pump before the first start so it never runs dry.
• Flush the cooler and cooler lines, since a failed pump leaves metal in them.
• Use Mopar ATF+4 (MS-9602-F) and set the level only once the fluid reaches 160 degrees F.

A pump damaged badly enough to replace usually means the rest of the unit saw low pressure for a while. Plan on new frictions and seals from a 68RFE master rebuild kit on 2010-2018 trucks, and consider a 68RFE solenoid kit if the solenoids were working against a starved circuit.

What does 2007-68 mean in the title?

The listing came to us labeled 2007-68, which we take to mean 68RFE applications from 2007 onward. Because the 68RFE changed over its production run, compare your old pump to the photos or send us your year and VIN, and we will confirm fitment before it ships.

When should I replace the pump instead of bushing it?

If the wear is only in the center gear bore, a machined bushing and new center gear can save the pump. If the pocket face behind the gears is scored, or the body is cracked, it cannot be repaired with those parts and the whole pump should be replaced.

Does a new pump fix slipping on its own?

Only if the pump was the only problem. If the truck slipped for a long time on low pressure, the clutch packs are usually burnt and need replacing as well, so inspect them while the unit is apart.

Do I need to replace the torque converter too?

Not always, but inspect the converter hub carefully. A scored hub will wear the new seal and bushing, and a converter that has been contaminated by pump debris should be cleaned or replaced.

What fluid does the 68RFE need after the job?

Mopar ATF+4 to specification MS-9602-F. Set the final level with the engine idling in Park and the fluid at 160 degrees F or more.

• 68RFE Pump Failure: Symptoms, Diagnosis, and Replacement
• 68RFE Ram 2500 Cummins Common Problems and Fixes
• 68RFE Valve Body Problems: Symptoms, How to Test, and Replacement
• 68RFE Input and Output Speed Sensor Symptoms, Testing and the P0716 Trap