EATN ACA 3323 3923 4623 5423 6423 7620 7623 7640  Pump  HHD 3933 4633 5433 6433 7630 mixer truck hydraulic motor, model 4623-395 4623-552 4623-553 421AK01299B 6120-032 4623-552 4623-553 4623-647 4623-646 4633-045 5423-518 5423-715 5423-854 5423-873 5433-138 6423-279 6423-533 6423-570 6423-569 6433-042 7620 7630 7640-036

Advanced cylinder barrel design – permits high speed and pressure.
Fixed clearance slipper hold down – on Models 39 through 64 allows operation at high speed and reduces friction.

Pistons – have long engagement with cylinder bore resulting in low leakage.
 

Drive shafts: a wide variety of options are available to suit every need.
High strength swash plates on variable pumps and motors: resist deflection under high load.

High strength cast iron housings: provide greater noise damping and wall strength.
High flow check valves in pumps: keep the system primed with minimal pressure drop.