47RE Internal Wiring Harness 2000, used and ready to install. Fits the 47RE. Ships fast from the USA.
On a 2000-and-later Dodge Ram 2500 or 3500 with the 47RE behind the 5.9L Cummins or the 8.0L V10, a lot of "bad solenoid" diagnoses turn out to be the wiring inside the pan. This listing is a used, genuine Chrysler internal harness, stamped 22988C, with the round 8-pin case connector on one end and the 4-pin rectangular plug for the late-style governor pressure sensor on the other. If your truck is throwing governor or lockup circuit codes that will not stay cleared, the case plug is leaking fluid into the outside connector, or a wire has rubbed through on the valve body, this is the wiring-only fix.
The 47RE makes first, second and third gear hydraulically. The electronics inside the pan handle the rest: the governor pressure solenoid and sensor tell the valve body when to upshift, the overdrive solenoid makes the 3-4 shift, and the converter clutch solenoid locks the converter. Every one of those parts is wired through this harness to the single round plug that passes through the case. On a heavy Cummins truck that tows, the pan runs hot for long stretches, and over twenty-plus years the insulation hardens, the sensor connector latch breaks, and the case plug O-ring stops sealing. When Chrysler switched to the rectangular plastic governor pressure sensor for 2000, the harness changed with it, so the plug on this harness only mates with the late sensor.
Rule out the outside wiring first. Unplug the case connector and check it for fluid and green corrosion, and check the transmission relay output with the engine running. ATRA's troubleshooting guide for the 42-47RE family walks through comparing desired and actual governor pressure and which case connector pin feeds what. If the outside circuit is good, drop the pan, unplug each solenoid and the governor sensor, and check each harness wire end to end while flexing it. An open or high-resistance wire, or a cracked sensor plug, condemns the harness. Our 47RE governor pressure solenoid and sensor guide explains the scan-tool checks, and Ram 2500 Cummins shift problems covers the start-in-third and no-overdrive complaints.
This harness is listed for A518 and A618 (46RE and 47RE) transmissions from 2000 on that use the rectangular plastic governor pressure sensor. For the 47RE that means 2000-and-later Ram 2500 and 3500 trucks with the Cummins or V10. It will not plug into a 1996-1999 unit with the round metal governor transducer. Do not assume it fits a 48RE; check the plug or ask. It is harness only, with no solenoids or sensors attached. If your overdrive and lockup solenoids are damaged as well, the 2000-up 47RE master solenoid kit includes the solenoid assembly and is the better buy. Compare your plugs to our photo, or send year and VIN and we will confirm. Other parts are on the 47RE parts page.
For the bigger picture on these trucks, read 47RE common problems and fixes.
| Fits | 47RE 2000 |
| Part type | Internal Wiring Harness |
| Condition | Used |
| Brand | OEM |
| Reference | A518 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Used genuine Chrysler, in good condition. It is the harness only; no solenoids or sensors are included.
No. 1996-1999 47RE units use the round governor pressure transducer and a different harness plug. This one is for 2000-up trucks with the rectangular plastic sensor.
Drop the pan and look at the sensor on the valve body. A rectangular plastic sensor with a 4-pin plug matches this harness. A round metal can-style sensor is the early type.
Intermittent P0748, P1763 or P1764 on the governor circuit and P0743 or P0753 on the lockup and overdrive circuits, especially when the solenoids test good on their own.
No relearn is needed for a harness swap. Clear the codes and road test, watching that actual governor pressure follows desired.
