545RFE Overhaul Kit 2005-2011, new and ready to install. Fits the 545RFE. Ships fast from the USA.
This is a new overhaul gasket and seal kit for the 2005-2011 545RFE, the five-speed unit Chrysler also tags 5-45RFE. It is a Precision kit, manufacturer number S87900A, cross-referenced to KP13900AX, and it is the version without pistons. It is aimed at the Ram 1500 with the 4.7L or 5.7L, the 2005-2011 Dakota, 2005-2009 Durango, 2007-2009 Aspen, WK Grand Cherokee and XK Commander that are leaking ATF, slow to engage after sitting, or headed for a teardown because the clutches are done. Every seal you disturb on the bench is in the box, so the transmission goes back together dry and holding pressure.
The 545RFE has no bands. Every ratio comes from applying two of its six clutches, and the controller times each apply by watching speed sensors and adjusting line pressure through the pressure control solenoid. That strategy only works if each circuit holds what it is fed. The kit covers the case and valve body gaskets, a molded rubber pan gasket, the pump front seal, the metal-clad seals and the small O-rings matched to the 2005-2011 unit. Chrysler's own diagnostic tree for a third or fourth gear ratio error lists a leaking reaction shaft support seal ring and a damaged 4C tower seal among the causes, which is exactly the kind of rubber this kit replaces. What it does not contain is bonded clutch pistons, friction plates or steel plates.
A reseal will not cure a worn pump or a bad pressure solenoid, so rule them out first. Hook a gauge to the case pressure ports and compare it to the line pressure sensor reading as described in our 45RFE pressure control solenoid guide. If third or fourth is the complaint, air check the overdrive and 4C circuits with the 45RFE 3-4 clutch failure guide; a circuit that hisses at a seal ring needs this kit, a circuit that holds air but slips needs frictions too.
The kit is listed for 2005-2011 545RFE and 5-45RFE transmissions. The vehicle list above is the common application range, not a guarantee for every build date, because Chrysler made running changes to the pan, pump and seal sizes across the RFE family. Check the tag on the left side of the case and compare the pan shape before you order, or send your year and VIN and we will confirm. If your unit needs pistons, frictions and steels as well, look at the master rebuild kits on the 45RFE and 545RFE collection page.
| Fits | 545RFE 2005-2011 |
| 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. This is the version without pistons. It covers gaskets, the molded pan gasket, the front pump seal, metal-clad seals and O-rings. Reuse your pistons only if their bonded seals are not cracked or hard.
No. It is a reseal kit. If the clutches are glazed or burnt, buy a friction pack or master rebuild kit along with it.
It is listed for 2005-2011 only. Earlier and later units changed seal and pan details, so send your year and VIN before ordering for a truck outside that range.
Mopar ATF+4 or an approved ATF+4 fluid. Chrysler lists 14 to 16 liters for an overhaul fill; final level is checked hot with the engine running.
Yes. Run the quick learn with a scan tool so the controller resets its clutch volume values, then drive it through normal upshifts so it can finish adapting.
