47RE Tcc Solenoid 1996-99, new and ready to install. Fits the 47RE. Ships fast from the USA.
On a 1996-1999 Ram 2500 or 3500 with the 47RE behind a 5.9L Cummins or 8.0L V10, losing converter lockup on the highway means higher rpm, more heat in the fluid and a transmission that runs hot every time you tow. If your truck has stopped locking up, will not shift into fourth, or has set P0740 or P1740, this is the assembly to look at. It is a new Mopar overdrive and lock-up solenoid assembly with its internal harness, factory number 52118652, interchanging with 12420B and 22954B. It is the 1996-1999 version with the round 8-pin case connector.
The 47RE handles first through third hydraulically, with an electronically controlled governor. The two jobs the PCM controls directly are the 3-4 overdrive shift and torque converter lockup, and both solenoids live on this one bracket. When the PCM grounds the TCC solenoid, converter oil is redirected so the lockup clutch applies and the engine and transmission turn together. That matters more on a diesel tow rig than almost anywhere else: an unlocked converter under load slips constantly, and slip is heat. Both solenoids share a voltage feed through the round case connector, and the PCM switches each on its ground side, so a broken feed or a cracked connector can take out lockup and overdrive at the same time.
Unplug the round case connector and measure each solenoid through it; an open or shorted coil condemns the assembly. Check that the shared feed has battery voltage with the key on, and look for a chafed harness near the valve body. If the solenoids check good and the PCM is commanding lockup, the fault is hydraulic, not electrical. Sonnax identifies a restricted cooler as the most common cause of 740 and 1740 codes in this family, and Transmission Digest lists several non-converter causes of TCC slip codes. On a Cummins truck with an original cooler and lines, test cooler flow before buying parts. Our 47RE limp mode causes guide covers the shared-feed failures, and the 47RE valve body testing guide covers switch valve wear.
This assembly is listed for all 1996-1999 A500 (42RE, 44RE) and A518 (46RE, 47RE) transmissions with the round 8-pin case plug. For the 47RE that covers the 1996-1999 Ram 2500 and 3500 with the 5.9L Cummins or 8.0L V10. The harness was built for the round metal governor pressure transducer used in those years; Chrysler changed to a rectangular plastic sensor for 2000, and the later harness is different. Transmissions get rebuilt and swapped, so drop the pan and compare your sensor and connector to the photo, or send us your year and VIN before you order. Browse the full 47RE parts collection for the rest of this unit.
| Fits | 47RE 1996-99 |
| Part type | Tcc Solenoid |
| 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 1996-1999 assembly for the round metal governor pressure transducer. 2000 and later trucks use the rectangular plastic sensor and a different harness.
Yes. It is a new Mopar overdrive and lock-up solenoid assembly with harness, factory number 52118652, cross-referenced to 12420B and 22954B.
On these units the TCC and overdrive solenoids are serviced as one bracket and harness assembly, so the whole assembly is the replacement part.
Check cooler flow and the valve body. A restricted cooler is the most common cause of 740 and 1740 codes on this family, and a worn switch valve can stop lockup applying firmly.
ATF+4. Check it hot in neutral after the install. No programming or relearn is needed for this part.
