47RE Tcc Solenoid 1996-1999, new and ready to install. Fits the 47RE. Ships fast from the USA.
A 1996-1999 Ram 2500 or 3500 with the 47RE that will not pull into overdrive, cruises with the tach a few hundred rpm too high, or keeps logging a lockup code usually has a tired solenoid pack on the valve body. This listing is a brand new overdrive and torque converter clutch solenoid assembly with its internal wiring, cross-referenced to 12420B, 52-0266 and 52118500. It is specifically the early-design piece: the sensor plug on this harness only connects to the round, gold-colored metal governor pressure transducer used before 2000. It will not plug into the black square plastic transducer found on 2000-up units.
The 47RE behind the 5.9L Cummins and 8.0L V10 is a hydraulic transmission for the first three gears; the PCM only shapes those shifts through governor pressure. The two functions it switches outright are the 3-4 upshift and converter lockup, and those are the two coils on this bracket. When the PCM grounds the TCC coil, converter oil is redirected and the lockup clutch applies, tying the engine to the input shaft. On a diesel pulling a trailer, a converter that never locks keeps slipping under load, and that slip turns straight into fluid heat. Both coils share one power feed at pin 1 of the round case connector, so a broken wire or a cracked connector body knocks out lockup and fourth together, while a single failed coil only costs its own function.
Unplug the round case connector and read each coil with an ohmmeter. ATSG gives 25 to 40 ohms for both the overdrive and TCC solenoids, so an open reading or one well below that range condemns the pack. Then turn the key on and confirm battery voltage at pin 1; GEARS notes the unit drops to limp mode when that feed is lost. If both coils and the feed check good, look hydraulic before spending money. Sonnax ranks a restricted cooler as the most common cause of 740 and 1740 codes on the 46/47RE, which is common on high-mileage Cummins trucks with original lines. Our 47RE common problems guide covers the cooler flow test, and the 47RE valve body testing guide covers switch valve wear that can also kill lockup.
Listed for 1996-1999 A500 (42RE, 44RE) and A518/A618 (46RE, 47RE) transmissions, which on the heavy-duty side means 1996-1999 Ram 2500 and 3500 trucks with the 47RE. Year alone is not the deciding factor: the governor pressure transducer is. Drop the pan and look before ordering. A round metal transducer means this harness is correct; a square black plastic one means you need the 2000-up 47RE TCC solenoid instead. A valve body swapped from a later truck can break the year rule, so check what is actually in yours, compare your old assembly to the photo, or send us your year and VIN. More service parts are in the 47RE parts collection.
| Fits | 47RE 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.
Yes, if the governor pressure transducer on your valve body is the round gold metal type, which is what 1996-1999 trucks used from the factory. If someone installed a later valve body with the square plastic transducer, order the 2000-up version.
Both are the early round-transducer overdrive and lockup assembly. This one is a new aftermarket assembly cross-referenced to 12420B, 52-0266 and 52118500; the other listing is the Mopar-numbered part. Either one fits the same 1996-1999 transmissions.
No. It is the overdrive and TCC solenoid bracket with its harness. The governor solenoid and transducer are a separate kit.
ATSG lists 25 to 40 ohms for the overdrive solenoid and for the TCC solenoid, measured through the round case connector.
Check cooler flow and the valve body switch valve. Sonnax names a restricted cooler as the most common cause of 740 and 1740 codes on this transmission family.
