CATEngine Parts

300-9481 Hydraulic Piston Pump — Cat

This hydraulic piston pump is a critical component responsible for generating high-pressure fluid flow within the machine's hydraulic system. It ensures precise and powerful operation of actuators and implements by converting mechanical energy into hydraulic energy. A worn pump may exhibit reduced flow and pressure, leading to sluggish or unresponsive hydraulic functions, and can eventually cause a complete loss of hydraulic power.

Hydraulic Piston Pump – Part No 300-9481 – 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 Alloy
ApplicationMain Hydraulic System
Service LifeReplace based on performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing hydraulic piston pump include a noticeable decrease in the speed and power of hydraulic functions like boom lift or bucket curl. If ignored, the pump's performance will continue to degrade, leading to intermittent loss of hydraulic pressure and responsiveness. Eventually, the machine may become unable to operate its primary functions, significantly impacting productivity.

Installation Tip

Ensure the hydraulic reservoir is clean and free of debris before beginning the pump replacement process. Avoid overtightening mounting bolts, as this can distort the pump housing and lead to premature failure.

Service Note

Inspect and replace the hydraulic filter element and check the hydraulic fluid level and condition during pump replacement.