Full fluid and filter service for the Ford 6R140 in 2011-2019 Super Duty trucks: ten quarts of Mercon LV, the filter, and the pan gasket.
This is the factory-spec fluid and filter service for the Ford 6R140 TorqShift in a 2011-2019 F-250, F-350, F-450 or F-550 Super Duty, diesel or gas. The box holds ten quarts of Motorcraft Mercon LV (XT-10-QLVC), the Ford transmission filter BC3Z-7A098-B and the pan gasket BC3Z-7A191-B. It is the service to do when the truck tows or plows for a living, when the fluid on the dipstick has gone dark, or when a delayed engagement or harsh 1-2 has you wondering whether the fluid is the problem.
The filter sits in the pan and feeds the pump through a round intake neck sealed by an O-ring. Everything the pump sends to the valve body, the clutch packs and the converter passes through it first, so a filter loaded with wear material starves the pump and drops line pressure. Sonnax lists the 6R140 line pressure range as 90-260 psi and documents a truck that went to 0 psi and lost drive on hills because the filter neck seal had no grip on the pump intake. The fluid does two jobs: it is the hydraulic medium for clutch-to-clutch shifts, and it carries heat out of the clutches and converter. Ford Component Sales rates the unit for about four gallons of Mercon LV, and Ford's fluid chart lists Mercon LV for every 6R140 application. Mercon ULV is a different fluid for the later 10-speeds.
Drop the pan and read it before you clean it. Fine gray paste on the magnet is normal wear. Slivers of metal, or brown fibrous lining with a burnt smell, mean the clutches are already going and fresh fluid will not cure the slip. Our 6R140 filter and pan service guide shows what each finding means. If engagement is still delayed after the service, the 6R140 pump failure guide covers the next checks.
The kit fits the 6R140 in 2011-2019 F-250 through F-550 Super Duty trucks behind the 6.7L Power Stroke and the gas engines. It does not fit the 6R100, and most 2020-up Super Duty pickups moved to the 10R140, which takes a different filter and Mercon ULV. Read the transmission tag before ordering, or send us the year and VIN. More parts for this unit are in the 6R140 collection.
For what to inspect at higher mileage, see the 6R140 high-mileage checklist.
| Transmission | |
| Fits | |
| Engines | |
| Fluid | |
| Filter | |
| Pan gasket | |
| Drain and refill | |
| Does not fit |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. Sonnax lists about 8.2 quarts after a pan drop on the stock pan. A valve body removal takes about 10.2, and a deep aftermarket pan takes more.
Ford's fluid chart specifies Mercon LV for the 6R140. ULV is for the 10R100 and 10R140. This kit ships with Motorcraft Mercon LV.
Most 2020-up Super Duty pickups use the 10R140, which takes a different filter and fluid. Check the transmission tag before ordering.
Ford's normal schedule is long. On trucks that tow, plow or idle a lot, many shops service every 30,000 miles. A neglected unit may need a second drain and fill.
It is good practice to clear the adaptive tables with a scan tool so the computer relearns on fresh fluid, then drive through all gears.
