6R80 Overhaul Kit 2009-14, new and ready to install. Fits the 6R80. Ships fast from the USA.
This is a Precision International overhaul kit, part number KP37900KA, for the first generation of Ford-built 6R80s: 2009-2014 F-150, Expedition and Lincoln Navigator, plus the 2011-2014 Mustang. It also interchanges with the 49002E and 49002F kit numbers. Buyers usually land here with a leaking truck, a cold-morning delay into Drive or Reverse, or a high-mileage unit that has started slipping, and they want to reseal the whole transmission instead of chasing one leak at a time.
Inside the 6R80 are five clutch packs, labeled A through E, and the transmission applies two of them for every forward gear. Oil reaches the rotating packs through sealing rings and is held in each piston by a molded seal. Once those parts harden with heat and miles, apply pressure leaks away, the pack slips, and the computer sees a ratio error. This kit carries clutch piston seal sub-packs for all five clutches, so every circuit gets new sealing at once. It also includes a bonded rubber-and-aluminum pan gasket, the valve body gasket set, the metal-clad converter and rear output seals, the converter hub-to-pump seal, a sealing ring kit, the solenoid O-ring kit, the valve body bridge seal kit, the three valve-body-to-case tube seals, and a small parts kit of O-rings and bonded washers. Frictions and steels are not included.
This generation has electrical faults that copy a slipping clutch almost perfectly. Ford recall 19S07 covered 2011-2013 F-150s that could downshift to first unexpectedly, recall 24S37 added a software check for 2014 trucks, and bulletin 13-6-8 covers 2011-2013 trucks that launch in fifth with a zero speedometer, cured by a new lead frame. Ford also extended lead frame coverage to 10 years or 150,000 miles on many builds under program 19N01. Start with our F-150 6R80 problems guide and the 6R80 common problems guide, which list every recall and code. If the lead frame and solenoids test good and the unit still leaks or slips, reseal it.
The kit is listed for 2009-2014 6R80 transmissions in the F-150, Expedition, Navigator and Mustang. The Mustang only got the 6R80 in 2011; earlier automatic Mustangs used a five-speed. Inside this window Ford added a one-way clutch in 2011, which changed the center support and how the low-reverse clutch is applied, so the seal sizes are not identical across every year. That is why the kit carries the latest updates in one box, but you should still match the old seals as you remove them. For 2015-and-later units use our 2015 6R80 overhaul kit. Send your year, model and VIN if in doubt, and see the full family on the 6R80 collection page.
| Fits | 6R80 2009-14 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Reference | F150 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Clutch piston seal sub-packs for the A, B, C, D and E clutches, a bonded pan gasket, valve body gaskets, the converter and rear output seals, the converter hub-to-pump seal, sealing rings, solenoid O-rings, the valve body bridge seal kit, the three valve body-to-case tube seals and a small parts kit. It does not include frictions, steels or a filter.
Yes. The Mustang used the 6R80 from 2011, and 2011-2014 cars fall inside this kit's range. 2010-and-earlier automatic Mustangs used a different transmission.
No. Use the 2015 6R80 overhaul kit for 2015-and-later units. Ford kept changing parts inside the 6R80 through these years.
No. That pattern is covered by Ford bulletin 13-6-8 and is a lead frame fault, not worn seals. Many trucks also have extended lead frame coverage under program 19N01, so check with a dealer first.
Mercon LV. Fill to the level check procedure with the fluid at operating temperature.
Yes. Clear the transmission adaptives with a scan tool and complete a relearn drive so the computer learns the fill times of the resealed clutches.
