722.3

The family of 4-speed automatic transmissions Mercedes 722.3 - 722.4 has been used since 1981 on all popular RWD Mercedes models with engine capacities from 2.3 up to 5 liters, which operate for decades.

The difference between series 722.3 (W4A40) and 722.4 (W4A20) is externally indeterminate, because both gearboxes operate flawlessly. Before 1997 almost all components for 722.3 and 722.4 had been interchangeable, apart from difference in gaskets and frictions. The 5-th series is practically identical to the 722.3.