45RFE Overhaul Kit 2006, new and ready to install. Fits the 45RFE. Ships fast from the USA.
By the 2006 model year most Chrysler trucks and SUVs that had used the four-speed 45RFE were built with its five-speed version, sold as the 545RFE or 5-45RFE. This listing is the overhaul kit for that later unit: Transtec part number 2506, from the Freudenberg-NOK rebuild line. It is the soft-parts set a teardown uses up, packed without bonded pistons and without a pan gasket. It suits the 4.7L or 5.7L Ram 1500, Durango, Dakota, Grand Cherokee or Commander owner, or the shop doing the work, whose transmission now slips when hot, lags into gear after sitting, or leaks no matter how many times the pan is resealed.
This unit has no bands. Underdrive, overdrive and reverse clutches live in the input clutch housing, the 2-4 and low/reverse clutches apply from the case, and the solenoid pack on the valve body decides which circuit gets oil. Apply oil reaches the spinning input housing through sealing rings on the input shaft and the reaction shaft support, then a lip seal on each piston traps it behind the clutch pack. When that rubber hardens, oil escapes, the clutch is underpressured, and the controller can only stretch its fill timing so far before shifts flare or a ratio code sets. The 2506 kit replaces the sealing rings, O-rings, lip seals and case gaskets in one go so every circuit starts out tight again. You reuse your bonded pistons, so they get inspected rather than replaced.
Rule out the cheap causes first. A late morning engagement on these trucks can be converter drainback through the cooler return filter, which Chrysler addressed in TSB 21-016-05, and that fix is outside the case. Next, look at line pressure against commanded on a scan tool; a worn pump gear set or regulator valve feels exactly like leaking seals, as our 45RFE pump failure guide explains. If the pressure problem follows the valve body, work through the 45RFE and 545RFE valve body testing guide before you open the case. If the pan is full of clutch material, plan on frictions too and read the 3-4 clutch failure guide.
The kit's application list starts at 2006 and covers the 5-45RFE plus the six-speed 65RFE. Named vehicles include the 2006-2012 Ram 1500, 2500 and 3500 with the 4.7L or 5.7L V8, the 2006-2011 Dakota 4.7L, the 2007-2009 Aspen, the 2006-2010 Commander, the 2006-2013 Grand Cherokee with a V8, several Jeep Liberty and Wrangler diesel applications, and the 2006-2008 Raider. If your truck is a 1999-2005 four-speed 45RFE, this is not your kit; the earlier units take a different seal set. Pistons and some seals changed during production, so lay each removed part next to the new one before installing, and send us your year and VIN if you are not sure which unit you have. All parts for this family are on the 45RFE and 545RFE parts page.
| Fits | 45RFE 2006 |
| 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. Transtec 2506 is a sealing kit: sealing rings, O-rings, lip seals and gaskets. It is built without bonded pistons and without a pan gasket, and frictions and steels are bought separately if the clutches are worn.
The kit's application list begins at 2006. For a 1999-2005 unit, use one of our earlier 45RFE overhaul kits, or send us your year and VIN and we will check which one matches.
Possibly, but check two other causes first: converter drainback through the cooler return filter (Chrysler TSB 21-016-05) and low line pressure from a worn pump. Seals are the answer only after those are ruled out.
ATF+4 only. Chrysler lists 14 to 16 liters to fill the transmission after an overhaul, with the final level checked hot and the engine running.
Yes. Chrysler lists clutch plate or seal replacement as a reason to perform the Quick Learn, which resets the stored clutch fill data. Without it, shifts can be harsh or flared until the controller relearns.
