4R55E Overhaul Kit 1995-1996, new and ready to install. Fits the 4R55E. Ships fast from the USA.
The 4R55E only lived for a few model years behind the 4.0L Cologne V6, in Explorers, 4.0L Rangers and Mazda B4000s, before the five-speed 5R55E replaced it for 1997. Good used units are hard to find, so when a 1995 or 1996 4.0L truck starts leaking, engages late, or loses its grip on the upshifts, resealing the original is often the smartest repair. This is the Precision International KP53900R gasket and seal overhaul kit catalogued for 1995-1996 4R55E units: gaskets, O-rings, lip seals, metal-clad seals and sealing rings for a full teardown.
The 4R55E is the heavy-duty member of the electronic A4LD family, built for the extra torque of the 4.0L and rated for about 550 lb-ft after converter multiplication, against roughly 440 for the 4R44E. Both share the same layout: clutch packs and three bands applied by oil pressure, with the computer setting that pressure through the EPC solenoid. In a heavier Explorer that tows or carries a load, the seals run hotter and age faster, and once a piston seal or sealing ring leaks, the clutch it feeds applies slowly and slips. The kit renews every soft seal in those circuits so each clutch and servo gets full pressure again.
This kit is for the early 1995-1996 design. Sonnax ties converter clutch slip on the 4R55E to sealing at the stator shaft, so inspect that area closely while the pump is apart. 1997 units take the separate 1997 4R55E overhaul kit.
Check fluid color and smell first; our ATF color and smell chart shows when the fluid points to burned clutches rather than tired seals. Pull the pan and inspect the magnet. Then run a pressure check with the help of our line pressure guide: low pressure in one range only points to a seal leak in that circuit. If you are rebuilding after a failure, flush the cooler before the reseal goes back in.
Catalogs list the KP53900R for 1995-1996 4R44E and 4R55E in Ford Ranger, Explorer and Aerostar and Mazda B2300, B3000 and B4000, two-wheel and four-wheel drive. For a 4R55E, that means the 4.0L applications. Four-wheel-drive units use a different tail housing than two-wheel drive, so match the extension seal. Read the ID tag on the case or send us your year and VIN before opening the package. The 2.3L and 3.0L trucks use the 4R44E 1995-1996 overhaul kit, and the rest of our kits are in the rebuild kits collection.
| Fits | 4R55E 1995-1996 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Reference | KP53900R |
| Ships | From the USA |
| Warranty | 1-year |
No. It is a gasket and seal overhaul set: gaskets, O-rings, lip seals, metal-clad seals and sealing rings. Frictions, steels, bands and the filter are not included.
No. It is catalogued for 1995-1996 units. Most 1997 4.0L trucks moved to the 5R55E, and 1997 4R55E units take the separate 1997 overhaul kit.
Both are torque converter clutch slip codes. Sonnax ties them to wear at the stator shaft sealing area, which is why the seals and rings in this kit matter on a 4R55E rebuild.
It is catalogued for both two-wheel and four-wheel drive. The 4x4 tail housing is different, so compare the extension seal to your original.
Yes. The kit does not include a filter, and two-wheel and four-wheel drive 4R55E units use different filters, so order the one that matches your drivetrain and change it with every reseal.
