6R80 Master Rebuild Kit, new and ready to install. Fits the 6R80. Ships fast from the USA.
If your Ford or Lincoln six-speed is slipping, flaring between gears or leaving burnt clutch material in the pan, and you have decided the 6R80 is coming apart, this master kit is the soft-parts side of the job. It is a three-part bundle: an overhaul set of gaskets and seals, a friction plate set, and a steel plate set. It is built around the common T18300D kit number and its T18302D, T183080D and T183081D sub-kits. Because this listing does not narrow itself to one year range, the most important thing on this page is working out which 6R80 you have before you order.
Ford's 6R family started as the 6R60, then the 6R75, and the 6R80 was developed to take more torque. Inside, five clutch packs (A, B and E driving, C and D holding) are paired two at a time through a Lepelletier geartrain to make six ratios. The frictions and steels in those packs are the wear surface of the whole transmission. The seals are what hold apply pressure on each piston. A master kit replaces both, which is why it is the right purchase for a high-mileage unit that is already on the bench. It does not replace hard parts: the pump, drums, planetaries, bushings and the valve body are reused or bought separately.
Harsh shifts, a start in a high gear, or erratic shift timing are more often valve body, solenoid or lead frame faults on the 6R80, and a rebuild kit will not fix those. Sonnax notes that a replacement solenoid body carries strategy and ID codes that must be programmed into the PCM, so a misprogrammed or failing valve body can feel like a worn transmission.
Scan for codes, then drive the vehicle with live data and compare commanded gear against the actual input-to-output ratio. A ratio error with healthy solenoid and sensor readings is mechanical slip. Our 6R80 common problems and fixes guide lists the electrical faults to rule out first, and the 6R80 shift problems guide walks through reading shift complaints by gear.
The listing is for the 6R80 in Ford and Lincoln applications, including F-150, Mustang, Expedition and Navigator. The 6R80 ran from 2009 through 2017 in North American trucks and SUVs, and the internals did not stay the same. Ford added a one-way clutch in 2011, changed the pump design for April 2014 and later builds, and in 2015 switched the forward clutch to a segmented button-style friction with a different apply piston option to suit plate count. That means a kit that is right for one year can be wrong for another. Read the ID tag on the case, count the plates in each pack you remove, and compare them to the kit, or send us your year and VIN and we will match it. If your unit is 2014 or later, look at our 2014-up 6R80 master kit. You can see every part for this transmission on the 6R80 parts page.
Soak the frictions in Mercon LV before assembly, lube every seal, and check that no piston lip rolls during installation. Air-check each clutch circuit and set pack clearances with selective plates. Budget for a new filter and inspect the pump and bushings. Fill only with Mercon LV. If the shift complaint started before the slip, fit a 6R80 valve body while the transmission is apart. If you only need to reseal a unit with good clutches, the 6R80 overhaul kit is the lower-cost option. Reset adaptives and run the relearn drive cycle when you are done.
| Fits | 6R80 |
| Part type | Master Rebuild 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.
An overhaul kit with gaskets and seals, a full friction plate set and a full steel plate set. Fluid is not included, and you should plan on a new filter.
An overhaul kit only reseals the transmission. A master kit adds the frictions and steels, so every clutch pack is renewed along with the seals.
Ford changed the forward clutch friction to a segmented type in 2015 and changed the pump in 2014, so later units need a matching kit. Send us your year and VIN and we will confirm before shipping.
Usually not. Harsh or erratic shifts on the 6R80 are more often valve body, solenoid or lead frame faults. Diagnose those before rebuilding.
Yes. Clear the adaptive tables with a scan tool and complete a relearn drive so the computer adjusts to the new clutch clearances.
