68RFE Pump 2018, new and ready to install. Fits the 68RFE. Ships fast from the USA.
A 2018 Ram 2500 or 3500 with the 6.7L Cummins that has started to whine at idle, sets P0868 for low line pressure, or slips under a trailer once the fluid gets hot is often a truck with a worn front pump. This listing is a new 68RFE pump for 2018, the final model year before Chrysler reworked the solenoid side of this transmission for 2019. The photo shows the bolted pump face as it sits against the transmission case, so you can compare it with the unit you pull out.
Inside the 68RFE the pump is a three-gear design. The torque converter hub turns a center gear, and that center gear drives two outer gears that actually move the fluid. Every psi of line pressure the controller asks for has to come from that gear set first; the pressure control solenoid only trims what the pump delivers. When the bore that carries the center gear drive flange wears oval, the gears lose their tight running clearance, volume drops, and the solenoid can no longer close the gap. A 2018 truck that has towed hard has usually put a lot of heat and side load through that bore, which is why pump wear tends to show up in this age bracket on work trucks.
Line pressure problems on this transmission have cheaper causes, so prove the pump first. Warm the fluid to at least 160 degrees F, set the level, then watch commanded pressure, actual pressure and the line pressure duty cycle on a scan tool. A healthy unit idles at roughly 60 to 70 psi with the duty cycle in the low 20s. If the duty cycle is pinned and actual pressure still trails commanded, the pump is not supplying enough volume. Before pulling it, check that the sump filter O-ring is not doubled up or unseated after a recent service, and rule out a worn low/reverse switch valve bore. Our 68RFE pump failure guide lays out that order, and the Ram 2500 Cummins common problems guide covers the overheating and clutch issues that often travel with a weak pump.
This pump is listed for 2018 68RFE applications: Ram 2500 and 3500 pickups and the Ram 3500, 4500 and 5500 cab-chassis trucks with the 6.7L Cummins. Transmission Digest documents that 2019 brought a blue solenoid pass-through connector and a separate TCC solenoid, so a 2018 truck sits on the older side of that line. We do not assume a pump crosses between those generations. Check your old pump's bolt pattern, stator shaft and housing against the photo, or send us your year and VIN and we will confirm it before it ships. Everything else we carry for this transmission is on our 68RFE parts page.
On 2013-2018 trucks a stuck thermal bypass valve is a common reason these units run hot, and heat is what wears the pump in the first place. Our thermal bypass valve for 2013-2018 Ram 6.7L is worth replacing while the truck is apart. If the pan held friction material, the 68RFE clutch module for 2007-2018 covers the clutch side of the job.
| Fits | 68RFE 2018 |
| Part type | Pump |
| 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.
It is listed for 2018. The 2019 68RFE changed to a blue connector solenoid assembly with a separate TCC solenoid, and we do not assume pumps interchange across that change. Send us your year and VIN and we will tell you which pump matches your truck.
No. A doubled or unseated sump filter O-ring after a fluid service, a level checked cold, or a worn low/reverse switch valve bore in the valve body can all set it. Confirm those first, then graph commanded versus actual line pressure.
Sometimes. Sonnax sells a center gear and bushing that salvage a pump worn only at the center gear bore. If the pocket face behind the outer gears is damaged, the pump has to be replaced with a complete assembly like this one.
Mopar ATF+4, specification MS-9602-F. Check the level only once the fluid has reached at least 160 degrees F, which can take a long idle in Park.
A front seal, the pump bushing if it is not already new, both filters, and a cooler flush. On 2013-2018 trucks it also makes sense to replace the thermal bypass valve so the transmission can cool properly.
