5R110W Master Rebuild Kit 2008, new and ready to install. Fits the 5R110W. Ships fast from the USA.
The 2008 model year was the first for the 6.4L Power Stroke in the Super Duty, and it was also the year Ford started changing how the 5R110W TorqShift is cooled and filtered. If your 2008 F-250, F-350 or heavier truck is slipping, the fluid is dark and smells burnt, or the pan magnet is wearing a coat of friction material, this master rebuild kit gives you the frictions, steels, seals, gaskets and filter to overhaul the transmission completely. The kit photos show full friction and steel packs plus bonded pistons.
Every shift in this transmission is commanded by a variable-force solenoid acting directly on its own clutch pack: coast, overdrive, intermediate, direct and low/reverse, with the forward clutch fed through the manual valve. Once those packs are glazed or burnt, the solenoids can command the right pressure and the clutches still will not hold. A master kit replaces every friction surface and reseals the pump, drums and case so the whole unit starts over at the same point.
Rule out the solenoid body and line pressure first, because a single bad solenoid on this unit can mimic a worn clutch. Read codes, record PIDs on a road test and check pressure at the line port. Apply-time codes P2700 through P2704 tell you which element is slow but not why. Our solenoid symptoms guide shows how to separate a bad solenoid from a slipping pack, and the 5R110 rebuild guide lists what to inspect once it is on the bench.
This kit is listed for the 2008 5R110W behind the 6.4L diesel and the 5.4L and 6.8L gas engines in Super Duty trucks. Starting in 2008 Ford began dropping the external bypass cooler filter in favor of a redesigned sump filter with a deeper pan, released a non-bypass pump with a notched cover to keep lube flowing in extreme cold, and bonded the one-way clutch to the rear planet. Transmission Digest reported the later non-bypass units became prone to low one-way clutch failure in cold weather, so inspect that assembly closely. Because the change rolled in during the year, look under the truck for the external filter and check the build tag, or send us your VIN and we will confirm the right kit. See every part for this unit on the 5R110 TorqShift parts page.
On a rebuild it is worth fitting a new 5R110W pressure control solenoid, since it sets line pressure for every pack, and a 2004-2017 shift kit if the truck is stock.
| Fits | 5R110W 2008 |
| 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.
This one is listed for 2008. There is a separate 2005-2007 kit for the 6.0L years. If you are not sure which build you have, send us your year and VIN.
Look along the cooler lines for the screw-on external filter element. Ford began deleting it in 2008 in favor of a redesigned sump filter, so trucks from that year can go either way.
No. A master kit carries frictions, steels, seals, gaskets and a filter, and the photos show bonded pistons. Inspect the drums, planets, one-way clutches and bushings and replace them separately if they are worn.
Ford's 2009 Super Duty owner guide specifies Motorcraft Mercon LV for this unit, and Ford authorizes Mercon LV for earlier Mercon SP units. Do not use Mercon V.
Solenoids or at least the pressure control solenoid, the oil-to-air cooler, the correct deep-pan filter, any worn bushings and a torque converter service.
