722.6 Overhaul Kit 1996-2018, new and ready to install. Fits the 722.6. Ships fast from the USA.
If your Mercedes C-, E- or ML-class, a Sprinter van, or a Chrysler 300C, Dodge Charger or Jeep Grand Cherokee with the NAG1 five-speed is leaking fluid, slipping when hot after high mileage, or sitting a beat too long before it engages Drive on a cold morning, the hard parts may be fine and the rubber is what has given up. This is a new 722.6 overhaul kit for 1996-2018 units. It arrives factory-sealed in the maker's printed bag, as the product photo shows, and it is the gasket and seal set you need for a teardown: the soft parts that let every clutch circuit hold pressure again.
The 722.6 is an electronically shifted five-speed that Mercedes-Benz built from 1996 on, and it also went into Chrysler, Dodge, Jeep, Jaguar and SsangYong vehicles. Every shift is made by sending oil from the valve body to a clutch or brake piston, and that oil only reaches the piston if the sealing rings on the shafts and the lip seals and O-rings on each piston are tight. When those parts harden and shrink with heat and age, apply pressure bleeds off, the clutch takes longer to grip and the pack starts to slip. An overhaul kit replaces those seals along with the case and pan gaskets so the unit goes back together dry and holding full pressure. It is a soft-parts kit, not a clutch kit: plan on buying frictions and steels separately if your packs are worn.
Note that a flare on the 2-3 or 4-5 upshift can also come from worn bores in the valve body, which Sonnax and Transmission Digest both document on this unit. New seals will not cure that wear.
Scan the transmission first. The conductor plate carries two speed sensors and six solenoids, and codes P0748 through P0753 point at solenoid circuits while P0715 points at a speed sensor. Those are electrical faults, not seal faults. Then check the fluid level hot with the vehicle level, look for the leak source with the underside clean, and pull the pan to read the debris. Fine friction dust is normal; heavy black material or metal means the job is bigger than a reseal. Our 722.6 common problems guide walks through separating valve body flare, conductor plate faults and true clutch slip, and the pressure control solenoid guide covers the electrical side.
This kit is listed for the 722.6 from 1996 through 2018. That covers the five-speed in Mercedes C, E, S, ML and CLK models and Sprinter vans, plus the Chrysler-badged NAG1 (W5A580 and the lighter W5A380). The family was revised over those years and built in several torque ratings, so confirm your unit on the identification plate on the left side of the case before ordering, or send us the year and VIN and we will check it. Browse everything else for this family in the 722.6 and 722.9 collection.
| Fits | 722.6 1996-2018 |
| 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.
No. This is a gasket and seal overhaul kit. If your clutch packs are burnt or worn below spec, order the 722.6 master overhaul kit, which adds frictions and steels.
It is listed for the 722.6 family from 1996-2018, which includes the Chrysler-badged NAG1 (W5A580 and W5A380). Check the identification plate on the left side of the case or send us the year and VIN to confirm.
Only if the flare comes from leaking piston seals. On the 722.6 a 2-3 or 4-5 flare is often caused by worn bores in the valve body, which a vacuum test confirms. Seals alone will not fix that.
That leak is at the connector guide sleeve on the side of the case. If your kit does not include the sleeve seals, the conductor plate and filter kit or a separate adapter sleeve is the fix.
Use ATF approved to MB 236.14 unless your unit calls for a later spec, and do not mix 236.14, 236.15 and 236.16 fluids. Check the level hot with the vehicle level.
