545RFE Solenoid Kit 2002-2012, remanufactured and ready to install. Fits the 545RFE. Ships fast from the USA.
If your five-speed Ram 1500, Durango, Grand Cherokee or Commander has started dropping into a fixed gear, sets a solenoid or pressure switch code, or slips the converter clutch on the highway, the 545RFE solenoid pack is the first electrical part to rule in or out. This listing covers 2002-2012 and, as the photo shows, packages the pack with everything you need while the pan is off: the solenoid pack with its 23-pin case connector, a sump filter with a 1.49 inch pickup neck, a spin-on cooler return filter and a molded pan gasket.
The 545RFE has no governor and no hydraulic shift valves picking the gear. The transmission computer fires the solenoids in this pack to apply each clutch, and it reads the pressure switches built into the same assembly to prove the apply happened. One detail matters on this five-speed in particular: the low/reverse solenoid does two jobs. Chrysler's service information explains that the solenoid switch valve sends low/reverse solenoid oil to the low/reverse clutch in first gear, then switches over in 2nd, 2nd prime, 3rd, 4th and 5th so the same solenoid modulates the torque converter clutch until slip is within 60 rpm before it locks fully. A weak coil in that position can show up as a first-gear complaint or as converter shudder, depending on the gear you are in.
Work the electrical checks before you buy any hard parts. For P0750 Chrysler calls the fault strictly electrical and tells technicians not to replace the valve body. Pull the 23-pin connector and look for fluid wicking into the harness, corroded or spread pins, then meter each coil. Sonnax lists about 1.3 ohms for the shift solenoids and about 3.5 ohms for the pressure control solenoid. P1776 is different: Chrysler's procedure checks the low/reverse pressure switch circuit first and then the solenoid switch valve itself, which lives in the valve body, so a sticking valve there will not be cured by a new pack. Our RFE shift solenoid testing guide walks through the checks, and the 45RFE / 545RFE valve body guide covers the hydraulic faults that mimic a bad pack.
The listing range is 2002-2012 for the 545RFE. The pack pictured has the light-colored connector that Sonnax identifies as the white six-solenoid design Chrysler used from 2000 through 2009. In 2010 Chrysler moved to a gray-connector pack with one fewer solenoid. Sonnax notes that dealers used white packs to service later trucks when the gray pack was back-ordered, but a gray pack can never go back onto an earlier six-solenoid unit. If your truck is a 2010-2012 and the plug on your old pack is gray, send us your year and VIN before ordering so we can confirm the match. Every RFE part we stock is on the 45RFE and 545RFE collection page.
The pack bolts to the valve body and comes out with the pan down. Drain the fluid, drop the pan, unplug the case connector and remove the pack, then fit the new sump filter, the spin-on cooler return filter and the new pan gasket from this kit. Refill only with ATF+4 and check the level hot. Clear codes, then run the Quick Learn with a scan tool, which Chrysler requires after a solenoid pack replacement: brakes applied, engine above 500 rpm, throttle under 3 degrees and fluid between 60 and 200 F. If metering shows good coils but the bores are worn, a remanufactured 545RFE valve body is the better fix, and a 545RFE shift kit can be installed during a valve body service.
| Fits | 545RFE 2002-2012 |
| Part type | Solenoid Kit |
| 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.
As pictured: the solenoid pack with the 23-pin connector, a sump filter, a spin-on cooler return filter and a pan gasket. Fluid is not included; refill with ATF+4.
The pictured pack is the white-connector design used from 2000 to 2009. Sonnax reports white packs were used to service later trucks, but check the connector color on your old pack and send us your year and VIN so we can confirm before you order.
Possibly, because the low/reverse solenoid also applies the converter clutch in second through fifth. Chrysler's procedure checks the low/reverse pressure switch circuit and then the solenoid switch valve in the valve body, so run those checks before buying.
Yes. Chrysler lists solenoid pack replacement as a job that needs the Quick Learn procedure with a scan tool. Without it, the shifts can feel harsh or soft until the computer adapts.
The 45RFE and 545RFE share the RFE solenoid pack design and 23-pin connector. Match the connector color on your old pack rather than the transmission name.
