42RLE Planetary 2003, remanufactured and ready to install. Fits the 42RLE. Ships fast from the USA.
A Jeep Liberty or Wrangler, Dodge Dakota, Nitro or Ram 1500 with the 42RLE that whines at cruise, grinds when it changes gear, or quits pulling in one gear has often worn out its gear train. This is a remanufactured 42RLE planetary set, the gear train for 2003-and-later 42RLE four-speed automatics. The product photo shows the carriers, annulus and shaft assemblies together with their thrust washers, so you are replacing the gear train as a set instead of matching a new carrier to worn mating gears. Compare the pieces to your teardown before you assemble, since a set is only as good as the mating parts it replaces.
The 42RLE is the rear-drive, in-line version of Chrysler's Ultradrive design. Like the front-drive 41TE it uses two planetary gearsets, five clutches and no bands. The underdrive, overdrive and reverse clutches drive members of the gear train, and the 2-4 and low/reverse clutches hold members to the case. Different combinations give first through fourth and reverse. Because the gear train sits between those clutches and the output shaft, every bit of engine torque in every gear goes through these pinions, pins, bushings and thrust surfaces. Towing, a Wrangler on oversize tires, or a long run on low or burnt ATF+4 wears pinion bearings and thrust washers first, and once end play opens up the gear teeth stop meshing squarely.
Start with the pan and the scan tool. A gear ratio code by itself does not prove the gear train failed; a slipping clutch causes the same code. Read the CVI values: a clutch outside its ATRA range with burnt fluid points to the frictions, while normal CVIs plus metal in the pan and a speed-related whine point to the planetaries. Our Ultradrive slipping under load guide explains how to tell a pressure or clutch slip from a mechanical one, and our Ultradrive CVI and limp mode guide covers the electrical faults that mimic hard-part failures on this family.
This set is listed for 2003-and-later 42RLE transmissions in these applications: Chrysler 300 2005-10 V6, Dodge Challenger 2008-10, Dakota 2004-11 3.7L, Magnum 2005-08 V6, Nitro 2007-11 3.7L, Ram 1500 2007-12 3.7L, Jeep Liberty 2003-05 2.4L and 2003-12 3.7L, Wrangler 2003-06 2.4L and 4.0L and 2007-11 3.8L, and Mitsubishi Raider 2006-10 3.7L. It does not fit the front-drive 41TE. The 42RLE changed to variable line pressure controls in 2007, a valve body and solenoid change rather than a gear train change, but check the parts in your unit against this set before you build, and send us your year and VIN if anything looks different. The rest of our parts for this family are on the 41TE and 42RLE collection page, and a lower-cost option is our 42RLE planetary listing.
Metal from a failed gear train contaminates the clutches, so most builds pair this set with our 42RLE friction pack and the 42RLE overhaul kit for seals and gaskets.
| Fits | 42RLE 2003 |
| Part type | Planetary |
| 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.
It is listed for 2003-up 42RLE units in the Jeep Liberty and Wrangler, Dodge Dakota, Nitro, Ram 1500 3.7L, Magnum, Challenger, Chrysler 300 V6 and Mitsubishi Raider. Send your year and VIN if you want us to check your exact build.
Remanufactured. It is a reconditioned gear train set ready to install, not new production parts.
No. The 41TE is a front-drive transaxle with a different gear train layout. Use the 41TE planetary listings in our collection instead.
A speed-related whine, metal or bearing pieces in the pan and normal clutch volume readings point to the gear train. A clutch reading outside its CVI range with burnt fluid points to the frictions. Both can fail together after a hard failure.
Thrust bearings and washers that are worn, bushings, and usually the frictions and seals, since debris from a gear train failure spreads through the unit. Flush the cooler too.
ATF+4. Refill with it after the repair and run the quick learn with a scan tool.
