47RE Overhaul Kit, new and ready to install. Fits the 47RE. Ships fast from the USA.
If your Ram 2500 or 3500 with the 5.9L Cummins or 8.0L V10 is pulling into gear late on cold mornings, weeping fluid around the pump or extension housing, or slipping in overdrive under a trailer, the transmission has usually reached the point where every rubber seal inside it is due. This listing is a TransTec overhaul kit, part number 81000078 (interchange T22002E), built for the A518/A618 family: 46RH, 46RE, 47RH and 47RE. The bag holds four groups of parts: gaskets, seals, a sealing ring kit and a small parts kit. It is the soft-parts core of a rebuild, so friction discs, steel plates, bands, bushings and the filter are not included and are bought to suit your own teardown.
The 47RE is a Torqueflite-based four-speed with a bolt-on overdrive section behind the main case. The front clutch, rear clutch and the two bands do the work in first through third, and the overdrive unit adds a direct clutch and an overdrive clutch fed through its own housing and support. Each of those pistons is sealed with lip seals or molded seals, and fluid reaches the spinning drums through sealing rings riding in grooves on the input shaft, reaction shaft support and intermediate shaft. Behind a Cummins, the overdrive section works hard: it carries diesel torque in fourth gear for hours at a time while towing, and heat hardens its seals faster than anything else in the unit. Sonnax lists overdrive lube loss and a poorly sealing factory support among the known 46/47RE wear points. When rings and seals lose their grip, apply pressure bleeds off, the clutch packs slip, slipping makes more heat, and the cycle speeds up. This kit replaces every one of those sealing surfaces at once.
A 47RE that shifts wrong is not always a seal problem. Check the fluid level hot in Neutral and look at its color and smell first. On 1996-up trucks, read codes and compare governor pressure desired against actual with a scan tool; ATRA GEARS shows how a governor solenoid or transducer fault produces late or missing upshifts that feel like a slipping transmission. Our 47RE common problems guide walks through that order of testing, and the Ram 2500 Cummins problems guide covers the towing-related failures. If the fluid is burnt and the frictions are worn, plan on a full rebuild with clutches; if the plates still look good and the complaint is leaks or late engagement, a reseal with this kit is the right repair.
The listing is titled for the A518, A618, 46RH, 46RE, 47RH and 47RE and does not give a year range, and the 48RE is not named. These units changed several times, including the move from the hydraulic governor on RH units to the electronic governor on RE units, so a kit that spans the family includes more than one version of some seals. Confirm the tag on the left side of the case, or send us your year and VIN and we will check it before shipping. Hard parts for the same transmission are in our 47RE parts collection, and if you want the version listed with a stated 1990-2003 range, see the 47RE overhaul kit 1990-2003.
| Fits | 47RE |
| Part type | Overhaul Kit |
| Condition | New |
| 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.
Gaskets, seals, a sealing ring kit and a small parts kit for the A518 family. It does not include friction discs, steels, bands, bushings or a filter.
The 2002 Ram 3500 Cummins uses the 47RE, which this kit is listed for. The listing does not give a year range, so send us your year and VIN, or the tag number from the left side of the case, and we will confirm it before it ships.
The 48RE is not named in the listing, so we do not sell it for that unit. Contact us with your VIN if you are not sure which transmission your truck has.
The kit covers the RH units with a hydraulic governor and the RE units with an electronic governor, so some seals and gaskets come in more than one version. Match each new part to the one you removed and set the extras aside.
ATF+4. Fill it, start the engine, run through the gears and set the final level hot in Neutral.
If the frictions are not burnt, the steels are not blued and the clearances measure in spec, yes. On trucks that tow, many rebuilders reseal with this kit and still replace the overdrive clutch pack.
