42RE valve body for 2000-2001, Sonnax-updated, dyno-tested and ready to install. Ships fast from the USA.
A 42RE out of a 2000 or 2001 Jeep or Dodge often gets sold a valve body built to a later casting that doesn't quite line up at the connector or the governor bore spacing, and the install turns into a fight. This listing is built specifically for the 2000-2001 production window: a 42RE valve body rebuilt with the Sonnax governor bore and plug updates that correct the wear points this platform is known for, then run on a dyno before it ships so the shift timing and governor pressure are checked against spec rather than assumed.
The 42RE is the lighter-duty half of Chrysler's A500 4-speed overdrive pair, paired with inline-six and smaller V8 engines rather than the diesel and V10 trucks that got the heavier 44RE. Pump pressure reaches the valve body's bank of spool valves, which apply the underdrive, overdrive and reverse clutch elements in sequence, while a governor pressure solenoid and sensor mounted on the body feed the controller the data it uses to electronically time each shift. On a 2000-2001 unit with real mileage on it, the aluminum bores seating the 1-2 and 2-3 governor plugs wear oversize, pressure bleeds past them, and the shift schedule stops being commanded and starts being a guess.
Pull codes before you spend money on parts. TransGo's documentation on governor pressure solenoid wear across the 42-48RE family and this writeup on the P1762 governor pressure sensor offset fault both describe the same failure path: a worn valve body bore lets pressure drift out of range, the sensor reports it, and the controller either flares the shift or drops into limp mode to protect itself. If your codes point at the clutch packs or bands instead of the governor circuit, the valve body on its own won't resolve the complaint.
This valve body is built for the 42RE as used in 2000-2001 Jeep Cherokee XJ, Wrangler TJ and Grand Cherokee WJ inline-six models, and Dodge Dakota and Durango trucks with the 3.9L V6 or 5.2L V8. Chrysler revised valve body castings and connectors more than once across the 42RE's production run, so a unit built for an earlier or later year range can look nearly identical and still not bolt up cleanly. If your Dakota or Durango runs the 5.9L V8 instead, you likely have the heavier-duty 44RE — our 44RE valve body, 2000-2001 listing covers that transmission. Match your old unit's casting number before ordering, or send us your VIN and we'll confirm the right part first. If your 42RE is from the earlier 1997-1999 run instead, see our 42RE valve body, 1997-1999 listing.
Drop the pan and change the fluid and filter at the same time so debris from the old valve body doesn't circulate through the new one; ATF+4 is the only fluid this transmission is designed around. A worn pump can produce similar low-pressure symptoms on these transmissions and is worth ruling out if the shift complaint doesn't fully clear up. If bands or clutch packs are also worn, pair this with our A500 family master rebuild kit rather than expecting the valve body alone to fix a mechanical problem. Torque the bolts to spec in the correct sequence, then cycle through every gear a few times after the swap so the adaptive controller relearns against the updated part.
| Transmission | 42RE |
| Year Range | 2000-2001 |
| Condition | Remanufactured / updated |
| Testing | Dyno-tested |
| Shipping | Ships from the USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Chrysler revised the valve body casting and connector more than once across the 42RE's production run. A unit built for an earlier or later year range can look nearly identical but not seat or connect correctly, so this listing is matched to the 2000-2001 window.
Jeep Cherokee XJ, Wrangler TJ and Grand Cherokee WJ inline-six models, and Dodge Dakota and Durango trucks with the 3.9L V6 or 5.2L V8.
Both share Chrysler's A500 4-speed overdrive platform. The 42RE is the lighter-duty version for inline-six and smaller V8 engines; the 44RE is the heavy-duty version for the 5.9L V8, V10 and diesel trucks.
ATF+4 only.
1-2 shuttle shift, harsh or delayed 2-3 shifts, slow or no reverse, converter clutch shudder at steady speed, and limp mode tied to a governor pressure or governor sensor code.
Yes, it carries a 1-year warranty.
