42RLE Solenoid Kit 2003-12, new other (see details) and ready to install. Fits the 42RLE. Ships fast from the USA.
This kit covers the full 2003-2012 run of the Chrysler 42RLE, the four-speed behind the Jeep Liberty, Dodge Nitro, Dakota and other V6 rear-drive models. It is listed as a 5143151AA solenoid block filter kit, and the photos show the solenoid and pressure switch block, an input and an output speed sensor, a pan filter with its seal, and a pan gasket. Buyers usually find it after the truck goes into second-gear limp mode with a solenoid code and a dealer quote for a whole transmission. The condition is new other: unused, but it may not come in original retail packaging.
Every shift in the 42RLE is clutch to clutch. The transmission controller fires the solenoids in this block to apply and release the underdrive, overdrive, 2-4 and low/reverse clutches, and the pressure switches built into the same block confirm each circuit reached pressure. Over these ten model years the block stayed the same basic design, but Chrysler moved the 42RLE from fixed line pressure to variable line pressure (VLP), which added a separate line pressure sensor and solenoid. Sonnax notes the solenoid pack itself carried over, which is why one block covers such a wide span. Transmission Digest puts non-VLP line pressure at roughly 120 to 145 psi in first and second, while VLP units vary it with load, so a VLP truck can show different pressure readings without anything being wrong with this block.
Start with a scan tool and note the exact codes. A solenoid circuit fault with healthy fluid points at the block, its connector or the harness. Inspect the case connector pins for green corrosion before blaming the block, since that problem was common enough for a Chrysler service bulletin. A gear ratio code with high clutch volume index numbers and burnt ATF means worn clutches, which no solenoid kit can cure. Our 41TE and 42RLE limp mode guide explains CVIs and the solenoid switch valve wear that imitates a bad block. If the transmission slips under throttle instead of locking in second, read the slipping-under-load guide first.
Listed fitment is 2003-2012 42RLE applications, including the Jeep Liberty 3.7L through 2012 and the Dodge Nitro and Dakota with the 3.7L V6. Because VLP arrived partway through these years, a VLP unit has an extra connector beside the range sensor; that does not change this block, but it is a useful check that you have the right transmission. Compare the number on your old block to 5143151AA and match the connector before you order, or send us your year and VIN and we will confirm it. Front-drive 41TE vehicles use an external pack that does not interchange, and so do the 45RFE and 545RFE. More parts for this family are on the 41TE and 42RLE collection page.
Plan on a pan-down job. Drain the ATF, remove the pan and filter, unplug the case connector and lower the valve body to reach the block screws without disturbing the check balls. Fit the new block with a clean seal and tighten the screws evenly. Swap the input and output speed sensors on the outside of the case with fresh O-rings, then press the new filter in until its seal bottoms out and install the pan with the new gasket. Fill with ATF+4, set the level hot in neutral, clear codes and run the Quick Learn. If the valve body itself shows bore wear, the 42RLE valve body is the better repair, and a high-mileage unit with clutch debris in the pan should get the 42RLE rebuild kit with frictions and filter.
| Fits | 42RLE 2003-12 |
| Part type | Solenoid Kit |
| Condition | New Other (See Details) |
| 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 2003-2012. Sonnax reports the solenoid pack carried over when variable line pressure was added, but match the number on your old block or send us your VIN to be certain.
The photos show the solenoid and pressure switch block, input and output speed sensors, a pan filter with seal and a pan gasket. Condition is new other, meaning unused but possibly not in retail packaging.
If the limp mode comes from a failed solenoid, pressure switch or speed sensor, yes. If the codes are gear ratio faults from worn clutches, the transmission needs a rebuild instead.
ATF+4 only. Check the level with the engine running, the fluid hot and the shifter in neutral.
Yes. Clear codes and run the Quick Learn with a scan tool so the controller relearns clutch fill with the new solenoids.
