Identification 722.6 - B2 - corr. to 140 272 20 31 - not interchangeable with 140 272 12 31 (1.Generation)
corresponding to part number 140 272 20 31, normally supplied without seal ring
This piston is NOT a direct exchange for the piston 140 272 12 31 (no longer available) of the very first generation - please see our product info IDS-722.6-B2/B3