CATHydraulic Parts

556-3123 Hydraulic Pump — Cat 980M 980L

This is a high-performance hydraulic pump crucial for delivering pressurized fluid to operate the machine's functions. Manufactured to meet rigorous OEM standards, it offers superior durability and efficiency compared to a worn unit that may exhibit reduced flow or internal leakage. Operators might observe sluggish or unresponsive hydraulic controls, decreased lifting capacity, or audible pump noise as indicators of a failing pump.

Hydraulic Pump – Part No 556-3123 – 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
MaterialHigh-strength steel alloy
ApplicationMain Hydraulic System
Service LifeReplace based on performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing hydraulic pump often first manifests as a gradual loss of power or responsiveness in the machine's hydraulic functions. If left unaddressed, this can progress to intermittent or complete loss of hydraulic operation, potentially causing the machine to become inoperable. Continued operation risks overheating the hydraulic system and damaging other expensive components.

Installation Tip

Always prime the new pump with clean hydraulic fluid before installation to ensure proper lubrication and prevent initial dry running. Avoid forcing hydraulic lines onto the pump ports, as this can damage the pump housing or the fittings.

Service Note

Inspect the hydraulic fluid reservoir for contamination and check the condition of the hydraulic filter element for any signs of wear or blockage.