E4OD Overhaul Kit 1989-1996, new other (see details) and ready to install. Fits the E4OD. Ships fast from the USA.
The first-generation E4OD went into 1989 Ford F-Series heavy-duty pickups, Broncos and E-Series vans, and the survivors are now over thirty years old. Original rubber that old is hard, shrunken and leaking. If your early E4OD drips from every joint, needs a minute before it pulls into Reverse, or slips the 2-3 and 3-4 shifts once it gets hot, this overhaul kit is the reseal set for 1989-1996 units. The pictured kit lays out the pan gasket, case and cover gaskets, large piston O-rings, lip seals and metal-clad seals. Its condition is listed as new other, so the packaging may be opened or missing even though the parts are unused.
The E4OD was Ford's first electronically controlled heavy-duty automatic. A pressure control solenoid regulates line pressure, and shift solenoids route that oil to the clutches and bands. Every bit of that pressure has to be sealed in by the parts in this kit: the gasket between pump and case, the sealing rings on the support, the piston seals in each drum, and the O-rings on the case connector and servo covers. Once they harden, apply pressure bleeds off before the clutch is fully clamped. That is why an old E4OD can pass every electrical test and still slip. The kit does not contain frictions, steels, bands, bushings or a filter.
Read codes and check the case connector first. Transmission Digest calls E4OD/4R100 units the worst for connector problems, with fragile lock tabs and pins that corrode quickly, and a bad connection can mimic slipping. Our E4OD shift solenoid guide shows the resistance checks. If the electrical side is clean, a line pressure test settles it: low pressure that will not climb under throttle means an internal leak. The E4OD common problems guide covers the other early-unit failures worth ruling out.
This kit is listed for 1989-1996 E4OD transmissions. That range crosses a real dividing line. Sonnax separates the 1989-1994 solenoid block from the 1995-and-later version, and our comparison guide notes that the original E9 and F1 pump castings were superseded in 1995 by the F5 casting. Most soft parts carried over, but before you order, compare the kit's pump and pan gaskets to your own unit and read the ID tag on the case. If your truck has had a transmission swap or you are not sure of the year of the unit, send us the VIN and we will confirm. The rest of the parts for this unit are in the E4OD and 4R100 collection.
| Fits | E4OD 1989-1996 |
| Part type | Overhaul Kit |
| Condition | New Other (See Details) |
| 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.
The parts are new and unused, but the original packaging may be opened or missing. The photo shows the gaskets, seals and O-rings laid out.
Both years are inside the listed 1989-1996 range. The solenoid block change does not usually affect the seal set, but compare the pump and pan gaskets to your unit or send us your VIN to be sure.
Inspect it carefully. Sonnax notes the early E9 and F1 pump castings had low output and were superseded in 1995. Many rebuilders replace an early pump when the unit is already apart.
No. This is the gasket and seal set only. Buy frictions, steels and a filter after inspecting the old parts.
MERCON V is the common service fill for the E4OD family today. Check the level hot with the engine running.
