We believe this is the most complete and highest quality kit you can purchase for the price. Elring Brand
Take a very close look at the picture. These are all the gaskets and seals you will need to replace if you open up your 722.3 transmission that was produced from 1981 to 1995 for all 6 and 8 cylinder passengers cars that had a displacement of 3.0 liters of more. This will NOT WORK in the lighter 722.4 transmissions.
722.3 Complete Overhaul Gasket and Seat Kit
$162.50
SKU:
TRS-7223GASKETS 
Product Details
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$219.99
722.3 722.4 Upgraded B2 Piston Replacement Kit
These are GENUINE MERCEDES parts except for the cover o-ring. All parts need to be replaced at the same time.
We are learning, as others are, that these parts are becoming a HIGH preventative maintenance item on these old transmissions. A broken or binding B2 piston causes many shifting problems, and as Kent found on his 300E, it destroyed the transmission.