CATHydraulic Parts

3P4002 Gear Pump-Hydraulic — Cat 594 D8H

This Gear Pump-Hydraulic is a vital component responsible for generating hydraulic flow and pressure within the machine's hydraulic system. Manufactured to high standards, it ensures consistent fluid delivery, unlike a worn pump that can exhibit reduced output and inconsistent pressure. Operators may notice slow or weak hydraulic functions, overheating of the hydraulic fluid, or increased noise from the hydraulic system when this pump is failing.

Gear Pump-Hydraulic – Part No 3P4002 – 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 Gear Pump
MaterialCast Iron / Steel
ApplicationHydraulic System
Service LifeReplace as needed during overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing gear pump is typically a reduction in the speed and power of hydraulic functions. If ignored, the pump's internal wear will worsen, leading to inconsistent pressure, overheating of the hydraulic oil, and potential cavitation noise. The ultimate consequence is a complete loss of hydraulic system operation, rendering the equipment unusable.

Installation Tip

Ensure the pump shaft and mounting surface are clean and free of any debris before installation. Never run the pump dry; prime it with hydraulic fluid before initial startup to prevent internal damage.

Service Note

Always replace the hydraulic filter and flush the hydraulic system when installing a new gear pump to remove any contaminants.