46RE Tcc Solenoid 1996-1999, new and ready to install. Fits the 46RE. Ships fast from the USA.
When a 1996-1999 Dodge Ram 1500, Dakota, Durango or Grand Cherokee with the 46RE stops locking the converter on the highway, refuses to shift into fourth, or sets P0740 or P1740, the fault is very often in this small assembly bolted to the valve body. This listing is a new overdrive and torque converter clutch solenoid set with its internal harness, cross-referenced to 12420B and 52-0266 and to the factory 52118500 number. It is the early-harness version: its sensor lead plugs into the round, gold-colored metal governor pressure transducer that these model years used, and it will not mate with the black square plastic sensor that came in for 2000.
A 46RE makes first, second and third with hydraulics and an electronic governor. Fourth gear and converter lockup are the two jobs left to this harness. The overdrive solenoid is used for one thing only, the 3-4 upshift. The TCC solenoid, when grounded by the PCM, shifts converter oil so the lockup clutch applies and the engine and transmission turn together at cruise. Both solenoids are fed system voltage through pin 1 of the round case connector, and the PCM switches each one on the ground side. That layout is why a broken feed takes out both functions and puts the truck in limp mode, while one dead coil only costs you its own job.
Measure the two solenoids through the case connector. ATSG lists 25 to 40 ohms for the overdrive and TCC solenoids, so an open circuit or a reading far below that range condemns the assembly. Then check for battery voltage at pin 1 and, on a gas-engine PCM, back-probe B21 (overdrive) and B11 (TCC); GEARS notes both read close to 0 volts when commanded on. If the PCM is commanding lockup and the solenoid works, the cause is hydraulic. Sonnax names a restricted cooler as the most common reason for 740 and 1740 codes on this family, and GEARS flags the switch valve as a lockup problem area once a unit passes about 100,000 miles. Our 46RE shift solenoid testing guide walks through the checks, and the 46RE valve body testing guide covers the switch valve.
Listed for 1996-1999 A500 (42RE, 44RE) and A518 (46RE, 47RE) units in Ram, Dakota, Durango and Jeep Grand Cherokee applications. The deciding detail is the governor pressure sensor: this harness is built for the round metal transducer. Pull the pan and look before ordering, because a transmission that has been rebuilt or had its valve body swapped may not match its model year. If yours has the square plastic sensor, you need the 2000-up harness instead. When in doubt, send us your year and VIN, or match your old assembly to the photo. Everything else for this unit is in our 46RE parts collection.
No PCM programming or relearn is required for this part.
| Fits | 46RE 1996-1999 |
| 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.
Look at the governor pressure sensor on the valve body. This harness plugs into the round gold-colored metal sensor. If yours is the black square plastic sensor, order the 2000-up version.
On these units the TCC and overdrive solenoids are serviced as one bracket and harness assembly, so the full assembly is the replacement part.
ATSG lists 25 to 40 ohms for each of the overdrive and TCC solenoids, measured at the case connector.
Check cooler flow and the valve body. Sonnax identifies a restricted cooler as the most common cause of 740 and 1740 codes, and a worn switch valve can keep lockup from applying firmly.
ATF+4. Refill after the install, check the level hot in neutral, and no relearn is needed.
