Search | R107 | Transmission

The plastic shift bushing is a very common part that needs to be replaced on older Mercedes. Can you believe it is the exact same part that was used on all models for over 25 years! It is an inexpensive part that can cause big problems if it breaks out.

9/25 Update: Green and Red Modulators are NLA, and we have been informed that they will not be remanufactured. But, do not panic! You may have heard that you must replace your 1981 to 1995 transmission modulator with the correct color top. We have just learned that this is not necessarily true.

This is an improved factory upgrade for the older 722.3 transmission valve body. The accumulator parts you install are Genuine Mercedes. The intent of this upgrade is to improve the transition from 2nd to 3rd shift by adjusting the pressure in the K1 drum.

Three seals in each drum need to be replaced.  Only the bottom "hidden" drum seals in Viton are included.

The B1 piston assembly is not easy to remove and then reinstall. Because of the length of the two big springs behind the cover, it takes a tool that has a lengthy throw.

You will need a 12-point DEEP socket. That is the only thing that will work. Most impact sockets are six-sided. The best way to remove this nut is with a big impact wrench with the transmission locked in park. So you will need a quality heavy-duty socket. This one is made in the U.S.A. 

This will work on the 722.3 transmission BUT NOT the 722.4 smaller transmission found in some 1985 to 1995 models. The piston diameters are different. We are learning, as others are, that these parts are becoming a HIGH preventative maintenance item on these old transmissions.

Very common wear item due to aging rubber. Can be easily installed by putting a piece of plywood on the bottom of the transmission pan and use a floor jack to lightly jack up the back of the transmission to replace the mount. 

Inspect for adjustment and tension. If you disconnect the cable from the throttle linkage and there is no spring back pressure then the cable is broken.  

New o-ring seal installed.

Set of (2). The number one cause of a loose or rattling shift lever is failed or missing shift lever bushings. Our upgraded bushings are made out of nylon and are much tougher than the original plastic type. No instructions or special tools included.

If you have a leaking transmission seal it can be a real bear to get the old seals out without this puller tool. It works on both the front and rear transmission shaft seals. This tool also works great for removing the front crank seal on both gas and diesel engines.

Yes, with age they can leak from the inside out ever so slowly. Replace before they fail! This is a great upgrade that fits most models from early 70s up to mid to late 90s. The wire protector on these hoses will prevent chaffing especially from loose V belts.