E4OD Overhaul Kit 1989-95, new and ready to install. Fits the E4OD. Ships fast from the USA.
If you are rebuilding an early Ford E4OD out of a 1989-95 F-Series pickup, Bronco or E-Series van, this is the kit that puts new soft parts through the whole unit. These are the first-design E4ODs: the ones with the original rear case bushing, the early solenoid block and the first valve body castings, often behind a 7.3L diesel or a big gas V8 that spent years towing. When one of them slips in overdrive, takes a long time to grab Drive on a cold morning, or leaks from the pan and front seal at the same time, a complete overhaul is usually cheaper than chasing each symptom.
The E4OD is a C6-family main case with an electronically controlled overdrive section bolted on the front. Each clutch pack in it, from the coast and overdrive clutches up front to the forward, direct and intermediate packs behind them, is applied by line pressure held behind lip seals and sealing rings. Once those seals harden and the frictions glaze, pressure leaks away and the packs slip under load. The kit pictured for this listing is a full soft-parts set: the case and valve body gaskets, piston seals, sealing rings and O-rings, plus friction packs. Compare the photo to your teardown list so you know which hard parts to order separately.
An E4OD that will only take fourth in Drive and second in 2 or 1 may not be worn out at all: ATRA documents that as the failsafe the unit drops into when the computer loses control of the solenoids. Scan for codes, check solenoid resistance and the case connector, and run a line pressure test before tearing it down. Transmission Digest calls the E4OD/4R100 case connector one of the most troublesome at installation, with pins that corrode and a lock tab that breaks. Our E4OD common problems and fixes guide walks through those checks, and the E4OD shift solenoid guide covers the electrical tests. If the pan holds friction material and the unit slips with good pressure, it is time to overhaul.
This kit is listed for the 1989-95 E4OD. Ford changed several parts inside that span. Sonnax identifies the 1989 valve body by an E9 casting and the 1990-95 main body by F0 or F1, and it sells separate solenoid blocks for 1989-94 and 1995-98 units. The 1989-94 cases also used a two-piece rear case bushing that Sonnax replaces with a single-piece design because the original wears early from poor lubrication. Read the ID tag, match your old seals and gaskets against the kit photo, and send us your year and VIN if anything looks different. Later E4OD and 4R100 parts are in the E4OD/4R100 collection, and the C6 vs E4OD comparison helps if you are not sure which unit is in the truck.
| Fits | E4OD 1989-95 |
| 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.
It is listed for 1989-95. Ford changed the solenoid block and other parts for 1995, so read your ID tag and compare your old gaskets and seals to the kit photo, or send us your year and VIN.
The product photo shows the gasket and seal set, sealing rings and friction packs. Drums, the pump, planetaries, bushings and the valve body are hard parts you inspect and buy separately.
Not necessarily. The E4OD falls back to fourth in Drive and second in 2 or 1 when the computer loses solenoid control, so check codes, solenoid resistance and the case connector before tearing it down.
Mercon V automatic transmission fluid. Soak the frictions in it before assembly and verify the level hot after the first drive.
Any worn bushings (the early rear case bushing especially), a scored pump, heat-damaged drums or planetaries, and the cooler if the old unit shed debris.
