CATHydraulic Parts

564-9801 Hydraulic Pump — Cat E336 336 345 340 EXCAVATOR

This is a high-performance hydraulic pump designed to generate the necessary flow and pressure for the machine's primary functions. Engineered to meet rigorous OEM standards, it provides consistent and reliable hydraulic power, unlike a worn pump that may suffer from internal leakage and reduced output. Operators may experience a loss of power, slow or erratic operation of implements, or unusual noises from the pump area when this unit is failing.

Hydraulic Pump – Part No 564-9801 – CAT Spare Part
Part Specifications
BrandCAT
CategoryHydraulic Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeHydraulic Pump
MaterialCast Iron and Steel Alloy
ApplicationMain hydraulic system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing hydraulic pump will typically first manifest as a reduction in the speed and power of hydraulic functions. If ignored, this can progress to intermittent operation, complete loss of hydraulic power, and potential overheating of the hydraulic system. Continued operation risks damage to other critical hydraulic components due to insufficient lubrication and pressure.

Installation Tip

Ensure the hydraulic system is thoroughly flushed to remove any particulate contamination before installing the new pump. Improperly priming the pump upon initial startup can cause internal damage.

Service Note

Replace the hydraulic fluid and filters, and inspect all hydraulic lines, fittings, and cylinders for signs of wear or leaks.