CATHydraulic Parts

6y8764 Gear Pump-Hydraulic — Cat 120H 120H ES

This gear pump is a vital component within the hydraulic system, responsible for generating the flow and pressure needed for machine functions. Manufactured to meet rigorous quality standards, it offers reliable performance and durability, unlike a worn pump that may suffer from internal bypass or reduced output. Operators might observe sluggish hydraulic operation, erratic boom or bucket movements, or a whining noise from the hydraulic pump area when this unit is failing.

Gear Pump-Hydraulic – Part No 6y8764 – 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
MaterialHardened Steel Gears, Cast Iron Housing
ApplicationMain Hydraulic System
Service LifeReplace based on inspection or performance issues
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial signs of a failing gear pump can include a noticeable decrease in hydraulic system speed or power, and potentially a high-pitched whine. If ignored, hydraulic functions will become progressively weaker and slower, potentially leading to an inability to operate essential equipment functions. This can result in significant downtime and reduced productivity.

Installation Tip

Thoroughly flush the hydraulic system and clean the reservoir before installing the new pump to remove any debris that could cause immediate damage. Ensure the pump shaft key is correctly seated and the mounting bolts are torqued to specification.

Service Note

Inspect hydraulic hoses for signs of wear or leaks and check the hydraulic filter condition when replacing the gear pump.