6R80 Overhaul Kit 2009, new and ready to install. Fits the 6R80. Ships fast from the USA.
The 2009 model year was the first for Ford's own 6R80, behind the redesigned F-150 and the 5.4L Expedition and Lincoln Navigator. Those trucks are now old enough that the original seals are the weak point: a puddle under the pan, a slow drop into gear when it is cold, or a flare between gears on a hot day pulling a trailer. This is the KP37900KA overhaul kit (interchange 95002EX) for that early 6R80, a gasket set with sealing rings, rubber seals, the pan gasket and small extras. Clutch plates are not part of it.
A 2009 6R80 is the original design, before Ford added a one-way clutch in 2011. In these early units the D clutch stays applied through all of first gear and has to release for the 1-2 shift and reapply on the 2-1 coastdown, which is why GEARS Magazine notes Ford chased harsh 1-2 and 2-1 complaints on them with PCM calibration updates. Across all five packs (A, B and E driving, C and D braking), two are applied for every gear and each is fed through sealing rings. When the rubber hardens with age, a pack loses pressure under load and slips. This kit replaces those seals and rings throughout the unit.
A harsh 1-2 or 2-1 on a 2009 truck is not always worn seals. Ask a Ford dealer whether a newer calibration exists for your VIN, and scan for solenoid or speed-sensor codes before you pull the unit. Low fluid also slips like a worn pack, so check the level hot. Our F-150 6R80 common problems guide and the Expedition shift problems guide walk through the checks. A unit that still leaks, engages late or slips with good fluid and clean codes needs the reseal.
Our listing is for 2009 6R80 units, and the KP37900KA itself is cataloged across 2009-2014. For model year 2009 that means the F-150 with the 4.6L three-valve or 5.4L V8 and the 5.4L Expedition and Navigator. The base two-valve 4.6L F-150 kept a four-speed, and no 2009 Mustang had a 6R80, so read the tag on the case first. Early units differ from later ones in the center support, low-reverse piston and rear planetary (all changed for 2011), and Transmission Digest notes a 0.070 inch steel arrived in 2010, so measure and match what comes out. Send your year, model and VIN if in doubt, and browse the full family on the 6R80 collection page.
| Fits | 6R80 2009 |
| 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.
Only if it has the 6R80 six-speed, which came with the three-valve 4.6L and the 5.4L. The base two-valve 4.6L used a four-speed, so check the transmission tag.
Yes. Ford added a one-way clutch for 2011, which changed the case, the C and D support, the low-reverse piston and the rear planetary. Match seals in that area to the parts you remove.
No. The kit is the gasket set with sealing rings, rubber seals and a pan gasket. Order frictions and steels separately if the packs are worn.
Often not. Early 6R80s without the one-way clutch had harsh 1-2 and 2-1 complaints that Ford addressed with calibration updates, so check for a software update first.
Mercon LV, checked at operating temperature. Do not use supplements.
No. The Mustang did not get the 6R80 until 2011.
