Pump drive plate for Hitachi EX 1200 5C

This pump drive plate serves as the mechanical coupling between the engine and the hydraulic pump. It transfers rotational drive from the engine flywheel to operate the main hydraulic pumps, which generate the fluid pressure required for excavator implement, swing, and travel functions.

Part number H4825101400 is specified for the Hitachi EX 1200 5C hydraulic excavator. Proper engagement and alignment of the drive plate protect the pump shaft and engine drive components from improper torsional loading during continuous heavy earthmoving and mining cycles.

In heavy machinery hydraulic systems, drive plates maintain direct mechanical connection without slip. Replacing a worn or fatigued drive plate during pump service prevents complete loss of hydraulic power and protects connected drive splines from progressive mechanical damage.