When an automatic transmission loses hydraulic pressure internally, sealing rings are one of the first components to inspect, and this FIOD sealing ring set is built to address exactly that failure point. The set covers FIOD units from 1980 through 1993 and ships as a single, verified package weighing 0.3 lb.
Sealing rings live inside rotating and stationary components where they maintain fluid pressure between circuits. When they wear, crack, or take a set, the transmission loses the pressure it needs to engage clutch packs cleanly and hold gear under load. Replacing them during a rebuild is not optional if the goal is a unit that holds pressure after reassembly.
This listing is for the sealing ring set alone. It does not include friction discs, steel plates, band, Automatic Transmission Filter, or gasket material of any kind. If your rebuild requires those components, they need to be sourced separately. Checking your complete parts list against what you have on the bench before ordering will prevent a delay in the middle of a job.
Every set leaves here after being checked against its own parts listing. That listing is included in the box so the technician on the bench can confirm the count before the case goes back together. The FIOD has been in the REMCO catalog since the early days, and the ring dimensions in this set are specific to that unit family within the 1980 to 1993 production range.
Verify the unit code stamped on the transmission case before placing the order. Year alone is not enough to confirm fitment on vehicles that may have carried more than one transmission family during overlapping model years.
- Restoring proper fluid pressure in an FIOD unit starts with sealing rings that are no longer cracked, swollen, or worn through - this set addresses that root cause directly.
- This listing covers sealing rings only. It does not include friction discs, steel plates, Automatic Transmission Filter, gaskets, or bands. Review your parts list before ordering to avoid a return trip.
- Sealing rings for the FIOD are a wear item that directly controls hydraulic circuit integrity; replacing them as part of a rebuild keeps pressure where the valve body and clutch packs need it.
- One sealing ring set, packaged and verified against its parts listing before it ships. Total weight: 0.3 lb. No extra hardware included beyond what is described here.
- Before ordering, confirm the unit code on the transmission case matches FIOD and that the application falls within the 1980 to 1993 range. Unit code is the only reliable verification.
What's in the box
- 1 x Ring Kit, aodE4R7075
Compatible vehicles
- Fits Mustang [81-83], Thunderbird [82-89], Bronco [85-89], F250 3/4 Ton - Pickup [84-89], F350 1 Ton - Pickup [84-89], Mark VII [84-89], Town Car [81-89], Cougar [80-89], LTD [80-85], LTD Country Squire [83-89], LTD Crown Victoria [90-91], E100 1/2 Ton Econoline - Van [83].
| Ring Kit 2004-Up aodE4R7075 |
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