CATEngine Parts

155-5109 Hydraulic Piston Pump — Cat 3054 416C

This hydraulic piston pump is a core component responsible for generating high-pressure hydraulic fluid flow to operate various machine functions. It is built to meet stringent quality specifications, ensuring reliable performance and longevity compared to a worn pump that exhibits reduced flow or internal leakage. Operators may notice slow or unresponsive hydraulic functions, such as loader arm movement or steering, when this pump begins to fail.

Hydraulic Piston Pump – Part No 155-5109 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine 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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part TypeHydraulic Piston Pump
MaterialHardened steel and aluminum alloy
ApplicationMain hydraulic system
Service LifeReplace based on diagnostic testing or performance issues
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing hydraulic piston pump is often a sluggish or weak response from hydraulic systems. If ignored, this can progress to a complete loss of hydraulic power, rendering the machine inoperable for critical functions like steering or lifting. Continued operation with a failing pump can lead to overheating of the hydraulic fluid and potential damage to other system components.

Installation Tip

Thoroughly flush the hydraulic system and replace the hydraulic filter before installing the new pump to prevent contamination. Ensure the pump shaft is properly aligned with the drive coupling to avoid premature wear.

Service Note

Inspect the hydraulic fluid reservoir and strainers for any metal particles, which could indicate internal pump wear or damage.