Product Overview This hydraulic main piston pump is the core power component of the excavator hydraulic system, compatible with E307V1 and E307V2 models. It supplies pressure oil for boom, arm, bucket, and travel movements. Manufactured with precise processing, it delivers stable output pressure and excellent wear resistance, making it an ideal choice for machine overhaul and replacement. Part Number 259-7953 Compatible Models E307V1, E307V2 Excavator Component Type Hydraulic