45RFE Solenoid Kit 2004-2014, new and ready to install. Fits the 45RFE. Ships fast from the USA.
Before you spend several hundred dollars on a complete solenoid pack for a 2004-2014 Ram 1500, Durango, Dakota, Grand Cherokee, Commander or Liberty, check whether the pack itself is bad or just leaking. This kit is a reseal and repair kit for the solenoid pack on the 45RFE, 545RFE and 68RFE, not a new pack. It is new and contains the soft parts that seal the pack to the valve body and seal each solenoid in its bore: a gasket, a set of O-rings and seals, and the solenoid filter screen. It is built along the lines of the familiar Sonnax 44836-01K reseal kit, with one difference worth knowing: this kit includes the filter screen and does not include the spacer.
The RFE family has no shift valves driven by a governor. Every shift is made by solenoids in one pack bolted to the valve body, fed through a 23-pin case connector. Sonnax lists the pack as six on/off solenoids at about 1.3 ohms each (low/reverse, multi-select, underdrive, overdrive, 2nd clutch and 4th clutch) plus a pressure control solenoid at about 3.5 ohms. Oil reaches those solenoids through the pack's passages and screen, and each solenoid seals in its bore with O-rings. When those rubber parts harden from heat, oil leaks past them, the clutch the solenoid feeds gets less pressure than the computer expects, and the pressure switches in the same pack report the shortfall. The result looks like a failed solenoid even when every coil still measures in spec.
If a coil is open or shorted, or the connector pins are burned, a reseal will not fix it. Replace the pack instead.
Pull codes and measure each solenoid from the case connector before you drop the pan. A solenoid well off its listed resistance is an electrical fault, and Chrysler's own procedure for the L/R circuit code says not to replace the valve body for it. Our 45RFE shift solenoid testing guide walks through the pin-by-pin checks. If pressure codes are the complaint, compare commanded and actual line pressure as covered in the pressure control solenoid guide. Coils in spec plus leak-type symptoms is the case this kit is made for.
The listing covers 2004-2014 45RFE, 545RFE and 68RFE solenoid packs. Sonnax identifies the pack generations by the color of the plastic connector: black for 1999 only, white from 2000 through 2009, gray from 2010 when one solenoid was dropped from the pack, and blue from 2019. That means this kit spans both the late white-connector pack and the gray-connector pack, so look at your connector before ordering. Sonnax also notes the filter screens for different year ranges are not interchangeable even though either one physically fits either pack, which is why matching the year range matters with a kit that includes the screen. Compare your old gasket and screen against the product photo, or send us your year and VIN and we will check it. You can browse every RFE part on the 45RFE and 545RFE collection page.
If the pack turns out to have a bad coil once it is apart, the complete 2004-2009 white-connector solenoid pack is the next step. If the valve body bores themselves are worn, a reseal only treats half the leak; consider the remanufactured 2009 valve body.
| Fits | 45RFE 2004-2014 |
| Part type | Solenoid 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 reseal and repair kit for your existing pack: gasket, O-rings, seals and the solenoid filter screen. Your solenoids, pressure switches and pack body are reused. If a coil is open or shorted, buy a complete pack instead.
The listing covers 45RFE, 545RFE and 68RFE packs from 2004 to 2014. Packs changed from a white connector to a gray connector in 2010, and the filter screens differ by year range, so check your connector color and compare your old gasket and screen against the photo, or send us your year and VIN.
It follows the same idea as the Sonnax reseal kit, but this kit includes the solenoid filter screen and does not include the spacer.
Yes. Chrysler lists solenoid pack replacement as a reason to run the Quick Learn with a scan tool, with the brakes applied, throttle closed and fluid between 60 and 200 F. Skipping it can leave harsh or soft shifts until the computer adapts.
Mopar ATF+4 is the recommended fluid for the 45RFE and 545RFE in Chrysler's specifications. Use it to lubricate the new O-rings during assembly and to refill.
