CATEngine Parts

241-9157 Piston Pump — Cat C11 C13

This Piston Pump is a high-pressure hydraulic component essential for generating flow and pressure within the machine's hydraulic system, powering functions like lifting, steering, and implement operation. It is built to meet precise OEM specifications for flow rate and durability, outperforming worn pumps that deliver insufficient hydraulic power or exhibit inconsistent operation. Operators may experience sluggish hydraulic functions, a lack of power during heavy loads, or noticeable noise from the hydraulic pump when this part is failing.

Piston Pump – Part No 241-9157 – 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 TypePiston Pump
MaterialHardened Steel and Aluminum Alloy
ApplicationMain Hydraulic System
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Sluggish or weak hydraulic performance during operation, especially under load, is an early warning sign of a failing piston pump. If the issue progresses, hydraulic functions may become erratic or cease altogether, significantly impacting the machine's productivity. Continued operation with a compromised pump can lead to overheating of the hydraulic system and potential damage to other hydraulic components.

Installation Tip

Thoroughly flush the hydraulic system to remove any debris or metal particles before installing the new piston pump. Ensure the pump shaft is properly aligned with the drive coupling to prevent premature wear or damage to the pump or drive mechanism.

Service Note

Inspect and clean or replace hydraulic filters and check the condition of hydraulic hoses and cylinders when replacing the piston pump.