10R80 Input Drum, new and ready to install. Fits the 10R80. Ships fast from the USA.
Searching for a 10R80 input drum usually means a teardown is already underway: the truck had slipping or flaring shifts, the pan had clutch material in it, and the drum that sits on the input shaft looks suspect. On the Ford 10-speed, the drum most rebuilders mean by that name is the CDF clutch cylinder, the one that takes its oil straight from the input shaft. This listing is a new Motorcraft-branded unit for that position, for owners of F-150, Expedition, Navigator, Mustang and Ranger trucks and cars who would rather install a factory drum than gamble on a salvage piece.
The 10R80 input shaft is roughly two feet long and does more than turn gears. It carries the converter clutch circuit plus the C, D and F clutch apply circuits. That oil leaves the input shaft, passes through the No. 3 sun gear shaft, and enters the CDF cylinder through a steel sleeve pressed into the drum hub. Sealing rings on the sun gear shaft seal against that sleeve. The design packs three clutches into one compact drum, but it means a single worn sealing surface can starve or cross-feed three clutches at once. A sleeve that has walked, scored ring lands, or worn rings all produce the same result: pressure bleeds off before the clutch is fully applied.
On the bench, pull the drum and inspect the sleeve: it should sit flush in its bore, and the ring lands should be smooth with no step. An air check of each piston with the drum on the sun gear shaft will reveal a leak that a visual check misses. In the vehicle, Ford's dealer test reads line pressure while commanding individual solenoids; most independent shops rely on scan data and teardown evidence instead. Rule out a stuck valve body solenoid or old software first, both covered in our 10R80 F-150 common problems guide and the 10R80 problems and fixes overview.
No year range is given on this listing, so treat it as the general 10R80 version and verify before you buy. Ford catalogs the CDF cylinder under base number 7H351 with different suffixes for the F-150/Expedition/Navigator group, the 5.0L Mustang, Transit and 3.0L Explorer group, and the 3.3L Explorer and 2.3L Mustang group. Compare the number cast or stamped on your old drum, or send year, engine and VIN and we will check it for you. This listing shares its source with our 10R80 clutch drum page; if you need to know exactly which pieces come in the box, ask before ordering. Bronco 10R60 units are not covered. More parts for this unit are on the 10R80 collection page.
| Fits | 10R80 |
| Part type | Input Drum |
| 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.
In most rebuild shop usage, yes. The CDF clutch cylinder is the drum fed directly from the input shaft and sun gear shaft. Send us your old part number if you are replacing a different drum.
The sleeve is where oil for the C, D and F clutches crosses into the drum. If it moves, the sealing rings leak, and all three clutches lose apply pressure. Those clutches work in most of the ten gears.
No. Ford's procedure replaces the sun gear shaft seals, the input shaft to sun gear shaft seals and the input shaft seals whenever the CDF cylinder is replaced.
Mercon ULV only. Check the level hot, because overfilling a 10R80 leads to venting and overheating.
The 10R80 went into the F-150 starting in 2017, but Ford updated the drum over time. Match your part number or send your VIN, and we will confirm whether this version or our 2017-specific listing is the right one.
