722.9 - smaller o-ring on solenoids, can be blue or black - colour makes no difference in relation to function. Our o-ring is black

ZF: gearbox housing - screw plugs
Mercedes 724.0, 722.9: solenoids,
6DCT450 solenoid sleeves, smaller o-ring
0BH, 0BT (DQ500) - shifter valves in valve body (3x)

2 (6HP19 types), 3 (0BH, 0BT - DQ300), 5 (Ecolife and 6DCT450), 7 (724.0), 8 (722.9)

6HP19A, 6HP19AV, 6HP19L - Ecolife
724.0, 722.9,
6DCT450, MPS6
0BH, 0BT (DQ500)

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