Hydraulic Main Piston Pump 550-4341 565-9737 for E336GC E345GC Excavator

The K7V180DTP hydraulic main piston pump is the original core power component for the hydraulic system of E336GC and E345GC excavators. It supplies pressure oil to the boom, arm, bucket, and travel movements, ensuring reliable and responsive machine operation.

Manufactured with precise machining processes, this pump delivers stable output pressure and excellent wear resistance, making it an ideal choice for machine overhaul and replacement.

The following symptoms may indicate that the hydraulic main piston pump requires inspection or replacement:

• Weak digging force and slow working speed
• Abnormal noise and vibration during operation
• Internal wear leading to pressure drop
• Oil leakage at the pump assembly sealing surface
• Unstable hydraulic flow and action jitter

To ensure correct fitment and reliable performance, please observe the following before ordering and installation:

• Verify the machine model before placing your order
• Confirm the part number matches your old pump
• Keep hydraulic oil clean during installation
• Replace the sealing kit together if necessary