42RLE Shift Kit 2006-17, new and ready to install. Fits the 42RLE. Ships fast from the USA.
If your Jeep Liberty, Wrangler, Dodge Nitro, Dakota or Ram 1500 3.7L, or a V6 Charger, Magnum or 300 with the four-speed 42RLE has started shuddering on converter lockup, setting P0740, running hot, or clunking on the 4-3 or 2-1 coast downshift, this is the valve body repair kit built for it. It is the TransGo SK 42RLE-VLP SHIFT KIT, new, for the 2006 to 2017 42RLE units that use the variable line pressure (VLP) solenoid and pressure sensor. It ships from the USA.
Most of what goes wrong in a high-mileage 42RLE is wear, not bad design. The pressure regulator valve and the torque converter (TC) regulator valve ride in aluminum bores in the valve body, and after enough miles those bores wear oval. Line pressure leaks off, converter feed oil drains back, and the converter clutch cannot hold. This kit replaces both valves with USA-made hardened steel drop-in valves that have longer lands. The longer lands ride on the unworn part of each bore, so the circuit seals again without reaming the casting, and the load is spread over more surface so the bore lasts longer.
The rest of the kit goes after the other common 42RLE complaints. A non-shrinking low/reverse piston housing gasket replaces the factory gasket that shrinks with age and causes delayed forward or reverse and a 2-1 coast clunk. A self-expanding underdrive piston seal with an expander wire addresses the 4-3 coast clunk. Accumulator spacers make the releasing clutch exhaust faster for shorter, cleaner shifts, and new TCC control springs and accumulator seals round it out.
Note what this kit does not cover: P0841, P0871, P0988, P1775 or P1776 on a high-mileage unit usually point to wear at the solenoid switch valve bore, which needs its own repair kit. Electrical faults in the solenoid pack or the VLP solenoid also need to be ruled out first.
Scan for codes and look at clutch volume index (CVI) values before you open the pan. A converter shudder with P0740 and normal CVIs points at the valve body, which is what this kit repairs. High CVIs mean worn clutch packs, and a shift kit alone will not save those; plan a rebuild. Our 41TE / A604 Ultradrive limp mode and CVI guide walks through reading the codes and CVIs on this family, and the 41TE slipping under load guide covers low line pressure and the worn pressure regulator bore in detail. Check fluid level and condition too: dark, burnt ATF+4 with friction material in the pan means clutch damage is already done.
This kit fits the rear-wheel-drive 42RLE built from 2006 through 2017 with variable line pressure. TransGo also lists it for VLP versions of the front-drive 604, 40TES and 41TES. A VLP unit has a separate line pressure solenoid and pressure sensor; on the 42RLE you will find an extra electrical connector on the case near the range sensor. Earlier non-VLP 42RLE and 41TE units need a different kit (TransGo SK 604), so confirm VLP before ordering. If you are not sure which unit you have, send us your year and VIN and we will check it. Browse every part for this family on our 41TE and 42RLE parts page.
If the solenoid pack is original and the vehicle has high miles, the 42RLE solenoid kit is worth doing while the pan is off.
| Fits | 42RLE 2006-17 |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Probably not. This kit is for 42RLE units with the variable line pressure solenoid and sensor, which TransGo lists for 2006 to 2017. Earlier non-VLP units use TransGo SK 604. Check for the extra case connector near the range sensor, or send us your year and VIN and we will confirm.
When the cause is wear in the pressure regulator and TC regulator valve bores, yes. Those are the most common valve body causes of converter slip, shudder, P0740 and converter drain-back on the 42RLE. If the converter itself or the clutch packs are damaged, they need repair too.
The valve parts can be installed with the valve body out, but the non-shrinking low/reverse piston housing gasket and the underdrive piston seal are inside the transmission. To use the whole kit, install it during a rebuild.
Refill with ATF+4, reset the line pressure counter, clear codes and run a quick learn before the road test. Units built before April 28, 2008 should also get the latest PCM software.
If the clutches are worn, a 42RLE overhaul kit or banner rebuild kit. On a high-mileage unit, the solenoid pack and filter are worth replacing while the pan and valve body are off.
