CATEngine Parts

157-5909 Hydraulic Pump — Cat 3126 3116

This is a hydraulic pump designed to generate the flow and pressure required for the hydraulic system of CAT 3126, 3116 engines and Challenger 55/4 tractors. It is built with high-quality materials to withstand demanding operating conditions and ensure consistent hydraulic power. A failing hydraulic pump can manifest as slow or erratic hydraulic functions, loss of system pressure, or complete loss of hydraulic power.

Hydraulic Pump – Part No 157-5909 – 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 Pump
MaterialCast iron, steel, and seals
ApplicationTractor hydraulic system
Service LifeReplace as needed based on inspection
CompatibilityCAT 3126, 3116, Challenger 55, 4
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms include sluggish or inconsistent operation of hydraulic systems like the loader or hitch. If ignored, hydraulic functions will become progressively weaker, leading to a complete loss of power for all hydraulic attachments. This can render the equipment inoperable for its intended tasks.

Installation Tip

Ensure the hydraulic reservoir is completely drained and clean before installing the new pump to prevent contamination. Prime the new pump according to the manufacturer's instructions before starting the engine.

Service Note

Always replace the hydraulic filter and inspect the hydraulic fluid for debris or signs of wear when replacing the hydraulic pump.