545RFE Shift Kit 2010-18, new and ready to install. Fits the 545RFE. Ships fast from the USA.
Read this first: the listing title says shift kit, but what ships is a Mopar boxed solenoid pack service kit for the later RFE transmissions, as shown in the photo: the solenoid pack, a main pan filter, a cylindrical secondary filter and a pan gasket. It does not contain shift kit springs or valves. If your later 545RFE truck or SUV is stuck in second gear limp mode, has a flashing check engine light with solenoid circuit or pressure switch codes, or shifts erratically and won't upshift, the pack is one of the first parts to suspect.
The 545RFE is fully electronic. There is no governor and no throttle valve; the controller chooses each gear by switching solenoids in this pack, and the pack's pressure switches report back whether each clutch actually applied. Line pressure is set by a separate variable force pressure control solenoid in the same assembly. In 2010 Chrysler revised the pack. According to Sonnax, the overdrive solenoid and two check balls were found unnecessary and deleted, the multi-select solenoid took over the overdrive solenoid's job, and the 23-pin connector housing changed from white to gray. That gray-connector, five-shift-solenoid pack is the design this 2010-2018 kit is built around.
Pull the codes and check the coils. Sonnax lists the shift solenoids at about 1.3 ohms and the pressure control solenoid at about 3.5 ohms; an open or shorted coil, or a code that returns after the connector and harness check out, condemns the pack. Chrysler's own service information treats solenoid circuit codes as strictly electrical faults, so don't replace the valve body for them. Pressure switch and line pressure codes can also come from hydraulic leaks, so test before you buy. Our 45RFE shift solenoid testing guide covers the resistance checks and code logic, and the pressure control solenoid guide covers the gauge test for line pressure codes.
The listing covers 2010 to 2018 units. Match by connector color and part number, not by year alone. Sonnax notes that a gray-connector pack cannot service 1999-2009 units because it was built for five shift solenoids instead of six, while a white-connector pack could still be used on 2009-later trucks. The 2019-up blue-connector pack is different again, and Sonnax warns that the filter screens are not interchangeable between year ranges even though they bolt on. Compare your old pack before ordering, or send us your year and VIN. Every other part for this family is on our 45RFE and 545RFE parts page.
The pack comes off without removing the transmission: drain and drop the pan, remove the filter, unplug the internal connector and unbolt the pack from the valve body. Install the new filters and pan gasket from the kit and refill with ATF+4 only; Chrysler lists a service fill of about 5.2 liters on 4x2 and 6.2 liters on 4x4, then set the level hot. Chrysler requires a Quick Learn with a scan tool after replacing the pack, with the brakes applied, the engine above 500 rpm, and fluid between 60 and 200 F. If codes point to valve body wear instead, a 2010 545RFE valve body is the fix, and the gray-connector solenoid block pack is a pack-only option if you don't need the filters.
| Fits | 545RFE 2010-18 |
| Part type | Shift Kit |
| Condition | New |
| Brand | Mopar |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. Despite the listing title, it is a Mopar solenoid pack service kit with filters and a pan gasket. It changes no shift calibration.
Probably not. Sonnax says the gray-connector 2010-later pack cannot service 1999-2009 units because those use six shift solenoids. Match your old pack's connector and part number.
No. The pack bolts to the valve body under the pan. Drop the pan, remove the filter and internal connector, and unbolt the pack.
The controller still holds the old learned values. Chrysler requires a Quick Learn with a scan tool after solenoid pack replacement.
ATF+4 only. A pan-drop service takes roughly 5.2 liters on 4x2 and 6.2 liters on 4x4 per Chrysler's capacity chart; check the level hot.
