545RFE Pump 2007, remanufactured and ready to install. Fits the 545RFE. Ships fast from the USA.
If your 2007 Ram 1500, Durango, Grand Cherokee or Commander with the five-speed 545RFE has started taking its time to go into Drive, loses drive when hot, or logs P0944 or P0868, the front pump is one of the first internal parts to look at. This is a remanufactured 545RFE pump assembly for 2007. It goes in as a complete unit, so you are not chasing worn gears, a scored pocket and tired valves one at a time.
The 545RFE pump is driven directly by the torque converter hub, which means it turns at engine speed whenever the engine runs. Fluid comes up from the pan through the primary filter, which plugs straight into a bore in the pump, and leaves as main line pressure. That oil applies every clutch, charges the converter, feeds the cooler and lubricates the geartrain. The pump body also houses the pressure regulator valve and the converter clutch valves, so the pump has a hand in both shift quality and lockup.
The controller never reads the pump directly. It commands a target with the pressure control solenoid and checks the result through the line pressure sensor and the clutch pressure switches in the solenoid pack. When the pump wears, actual pressure trails the target, and when it stops making pressure altogether the switches that should close stay open.
Chrysler's 2007 service procedure for P0944 explains how the code is set. When the transmission slips in a forward gear and the pressure switches that should be closed read open, the controller runs a loss-of-prime test by applying elements and watching for any switch to respond. Before blaming the pump it sends you through shift lever adjustment, fluid level, a cracked or misinstalled primary filter or filter seal, and a loose cooler return filter. Only when delayed engagement or no-drive remains and there is no sign of internal seal leakage does it call for a new pump. Our 45RFE and 545RFE pump failure guide walks through those checks, and the pressure control solenoid guide covers the electrical faults that can look like a weak pump on a scan tool.
This listing is for the 2007 545RFE. The RFE pump went through casting and lube circuit changes over its run, and replacement assemblies are supplied with or without a front seal, so match your old pump against the listing photos before ordering, or send us your year and VIN and we will confirm it. The four-speed version for the same year is listed as the 45RFE pump 2007. Pumps for other years, plus kits and hard parts, are on the 45RFE and 545RFE parts page.
| Fits | 545RFE 2007 |
| Part type | Pump |
| Condition | Remanufactured |
| 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.
The 45RFE and 545RFE family was used in Dodge Ram 1500, Durango, Dakota and Jeep Grand Cherokee and Commander applications. Engine and drivetrain decide which version your vehicle has, so check the transmission tag or send us your VIN before ordering.
P0944 is loss of hydraulic pump prime. It sets when the transmission slips in a forward gear and none of the pressure switches respond during the controller's prime test. Check fluid level, the primary filter and seal, and the cooler return filter before replacing the pump.
Replace the front seal, primary filter and cooler return filter, and flush the cooler. If the overdrive clutch or other clutches are burned, rebuild them at the same time, because a new pump will not bring back worn frictions.
ATF+4 only. Chrysler lists a 5.2 L service fill on 4x2 and 6.2 L on 4x4 545RFE units, and about 14 to 16 L after an overhaul. Prime the pump with ATF+4 before the first start.
Clear codes, verify pressure on a scan tool and road test. If clutches or the solenoid pack were also replaced, run the quick learn procedure with a capable scan tool so the controller adapts to the new parts.
