722.6 Clutch Drum 2000-2006, used and ready to install. Fits the 722.6. Ships fast from the USA.
If your 2000-2006 Mercedes-Benz with the 722.6 five-speed automatic came apart with a scored, cracked or heat-blued clutch drum, this is a genuine Mercedes drum assembly pulled from a 722.6 and photographed with its clutch plates and shaft still in place. Rebuilders search for it when a C, E, ML or S-Class has started slipping in certain gears, flaring between shifts, or showing friction material in the pan. The reference number listed with this assembly is 140 272 11 24, so the quickest way to know it is the drum you need is to compare that number and the photo with the part you took out.
The 722.6 makes five forward gears and two reverse ratios from three driving clutches (K1, K2, K3), three brakes (B1, B2, B3) and two one-way sprags (F1, F2). Each driving clutch lives in a drum: the drum carries the steel and friction plates, houses the apply piston, and passes fluid from the shaft sealing rings to that piston. When the valve body commands the clutch, oil pressure pushes the piston, clamps the pack, and locks two members of the gear train together. If the drum is cracked, the piston bore is worn, or a bushing has walked, pressure bleeds off and the pack slips instead of holding.
Because every gear uses a set combination of elements, a bad drum shows up as slipping in a predictable group of gears. Per ATSG's application chart, K1 holds in 2nd, 3rd and 4th, K2 in 3rd, 4th and 5th, and K3 in 4th and 5th (plus W-mode reverse).
Rule out the cheap causes first. Low or wrong fluid, a worn pressure regulator bore and worn overlap sleeves in the valve body all cause slip codes on this unit, and none of them is fixed by a drum. Our 722.6 common problems and fixes guide walks through those checks. If the codes point at one group of gears and the pan shows metal or burnt friction, the drum and its pack become the suspect. On the bench, air-check each circuit: a drum that will not hold air with new seals, or shows a crack around the piston bore or spline area, needs replacing.
This drum is listed for the 722.6 in 2000-2006 vehicles. That covers a lot of cars, and ATSG notes the 722.6 was built in several planetary ratio sets and clutch capacities to match 4, 6, 8 and 12 cylinder engines, so not every 722.6 drum is interchangeable. Match the reference number 140 272 11 24, the spline count and the plate count to your old drum, or send us your year, model and VIN and we will check it before it ships. Browse every part for this family on the 722.6 and 722.9 parts page.
After the rebuild, reset the transmission adaptations with a scan tool so the control unit learns fill times for the fresh packs instead of compensating for the old, worn ones.
| Fits | 722.6 2000-2006 |
| Part type | Clutch Drum |
| Condition | Used |
| 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.
The listing does not name the clutch, so go by the reference number 140 272 11 24 and the photo. Compare them with the drum you removed, or send us your year, model and VIN and we will confirm before shipping.
Not necessarily. The 722.6 was built in several ratio sets and clutch capacities for different engines, so plate count and splines can differ. Match the number and the drum you took out.
New frictions, steels, piston seals and sealing rings for that pack at minimum. Most rebuilders do the full overhaul kit, filter and pan gasket at the same time because debris from a drum failure spreads through the unit.
MB 236.14 automatic transmission fluid. Mercedes warns against mixing 236.14 with 236.15 or 236.16 oils, so fill with one approved fluid.
Yes. A worn pressure regulator bore or overlap sleeves cause slip codes and flare shifts with perfectly good clutches. Check fluid and the valve body first, and replace the drum when you find metal, a crack or a pack that will not hold air.
