Backhoe Loader CAT 420D 430D 432D 442D 428D 438D Hydraulic Main Piston Pump Part Number: 244-2228 224-6369 10R-8700

Hydraulic main piston pump designed for Backhoe Loader models CAT 420D, 430D, 432D, 442D, 428D, and 438D. This replacement pump restores reliable hydraulic performance for digging, lifting, and steering operations.

The following symptoms typically indicate that the hydraulic main piston pump requires inspection, repair, or replacement:

• •Insufficient hydraulic power and slow movement
• •Excessive internal pump leakage, unable to build up pressure
• •Abnormal noise and severe vibration of the pump
• •Hydraulic oil overheating
• •Oil leakage at pump shaft and joint surface
• •Stuck displacement mechanism, flow control failure

To ensure correct fitment and delivery, please provide the following information when placing your order:

• •Please provide the machine serial number to confirm part interchangeability.
• •Specify your demand: complete pump assembly / spare parts / seal kit.
• •Quality options: Genuine / OEM / Remanufactured.
• •Pre-delivery inspection: pressure test and visual inspection.
• •Seals and O-rings can be provided upon request.
• •Export packing with shockproof and anti-rust treatment.