48RE Overhaul Kit 1998, new and ready to install. Fits the 48RE. Ships fast from the USA.
Owners of a 1998 Dodge Ram 1500, 2500 or 3500 usually land on this page after the truck starts doing something odd: pulling away from a light in second, flaring between gears, refusing fourth with a load behind it, or throwing a governor pressure code. Although this listing is sold under the overhaul kit name, it is not a seal and gasket set. The product photo shows an electrical service kit: the overdrive and converter clutch solenoid block on its braided harness with the round case connector, a governor pressure solenoid, a second cylindrical governor unit, a threaded plastic-bodied sensor, a retaining clip, two springs, a governor body gasket, a felt-media filter and a rubber-edged pan gasket. Buy it for those symptoms, not for a hard-parts rebuild. One more naming point: the 48RE name on the listing is the family name. A 1998 truck has a 46RE behind the gas V8s or a 47RE behind the 5.9L Cummins and 8.0L V10.
The RE units make the 1-2 and 2-3 shifts hydraulically. Governor pressure pushes the shift valves one way and throttle pressure pushes back. On the 1998 trucks that governor pressure is built by the PCM through a duty-cycle solenoid fed with line pressure, and a pressure sensor next to it reports the result so the computer can trim it. Chrysler's 1998 Ram service manual explains that the solenoid works in reverse: with no current it gives full governor pressure, which is why a dead circuit tends to bring early upshifts and starts in a higher gear. Overdrive and lockup are separate on/off jobs for the two coils in the solenoid block, so a governor fault and an overdrive fault feel very different from the driver's seat.
Scan for codes first and make sure the overdrive-off lamp is not simply switched on. A governor complaint can be checked with a pressure gauge on the governor port: the 1998 manual expects near-zero governor pressure with the wheels stopped, and pressure that rises smoothly with road speed. If line pressure itself is low, the problem is upstream of these parts, so read our pump failure guide before replacing solenoids. The shift solenoid symptoms guide walks through testing the overdrive and converter clutch coils at the case connector.
This listing covers the 1998 model year. Sonnax separates the RE valve bodies into 1999-and-earlier units with an early governor pressure sensor (oval connector) and 2000-and-later units with a rectangular plastic sensor, so a 1998 truck takes the early parts. Trucks built near a model-year change can go either way, so drop the pan and compare the sensor plug and filter shape to the photo, or send us your year and VIN and we will check it. Everything for this family is grouped on the 48RE transmission parts page.
| Fits | 48RE 1998 |
| Part type | Overhaul Kit |
| 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. Despite the listing name, the photo shows a solenoid service kit: governor solenoid, governor pressure parts, the OD/TCC solenoid harness, a threaded sensor, filter, pan gasket and governor body gasket. It does not include piston seals, sealing rings or frictions.
A 46RE behind the gas V8s or a 47RE behind the 5.9L Cummins and the 8.0L V10. Both use the same governor and OD/TCC solenoid layout this kit replaces.
Mopar ATF+4 or a fluid licensed to that spec. ATF+4 replaced the ATF+3 these trucks were filled with at the factory. Check the level hot, with the engine idling and the shifter in Neutral.
No programming is needed. Clear codes and road test; the PCM resets the governor sensor zero reading on its own when the truck comes to a stop.
Probably not. Trucks from 2000 on use a rectangular plastic governor pressure sensor instead of the early oval-connector style. Send your year and VIN and we will match the right kit.
