45RFE Overhaul Kit 1999-2018, new and ready to install. Fits the 45RFE. Ships fast from the USA.
Read this before you order: despite the overhaul kit name on the listing, this is a pump valve overhaul kit, not a gasket and seal set. It contains four oversized valves for the oil pump body of the 45RFE, 5-45RFE and 68RFE built from 1999 through 2018. Rebuilders reach for it when a Ram, Dakota, Durango, Grand Cherokee or Liberty keeps losing line pressure or slipping the converter clutch, the pump gears look fine, and the problem traces back to valves that have worn their aluminum bores oval. Because the valves are sized slightly over stock, they take up that wear without reaming.
On the RFE units the pump body is more than a gear set. It carries the pressure regulator valve that sets main line pressure for every clutch, and three converter clutch valves: the TCC switch valve that routes apply and release oil, the TCC regulator valve that meters apply, and the TCC limit valve that controls feed into the converter. The pressure control solenoid works against the regulator valve, and the controller reads the result on the line pressure sensor. When a regulator valve and its bore wear, oil escapes past the land, the controller commands more and more pressure, and eventually it runs out of room. Sonnax ties low pressure on these pumps to regulator valve wear and converter clutch slip to switch or regulator valve wear, which are the four parts in this kit.
Put a mechanical gauge on the case line pressure port and compare it to what the scan tool reports from the sensor; a sensor fault and a real leak look alike on codes alone. Our 45RFE pump failure guide walks through it, including the loose spacer plate screw that Transmission Digest found dumping line pressure on early pumps, and the cooler drainback TSB that causes late engagement after sitting. If the valve body is suspect too, the 45RFE / 545RFE valve body testing guide covers vacuum testing the bores. Replace these valves only once the pump is on the bench and the gears, pocket and bushing measure good.
The kit is listed for 1999-2018 45RFE, 5-45RFE and 68RFE pumps. Pump castings changed over that span, including different pump types with and without a front seal, so compare the valve sizes and the bore layout in your pump body against the kit before you commit, or send your year and VIN for confirmation. This kit contains valves only; gears, bushings, seals and gaskets are separate. Complete pumps and kits are on the 45RFE and 545RFE collection page.
| Fits | 45RFE 1999-2018 |
| Part type | Overhaul 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.
No. It is a pump valve kit with four oversized valves: pressure regulator, TCC switch, TCC regulator and TCC limit. Order a seal and gasket overhaul kit separately if you are resealing the transmission.
No. The valves are slightly oversized so they take up normal bore wear without reaming. A scored or gouged bore still needs a different repair or a new pump.
Only if the cause is pump valve wear. Confirm with a mechanical gauge first, and rule out the pressure control solenoid, the sensor and a leaking circuit.
It is listed for 1999-2018 45RFE, 5-45RFE and 68RFE. Compare the valves to your pump body or send your year and VIN to confirm before installing.
Use Mopar ATF+4. After installing the pump, run a quick learn with a scan tool so the controller resets its pressure and clutch adaptives.
