CATHydraulic Parts

8N0561 Caterpillar Gear-Pump Idler 8N0561 — Cat

This idler gear pump is a crucial element within the hydraulic system, responsible for generating hydraulic flow and pressure to power machine functions. It is engineered to meet the demanding material and performance standards of the original equipment, ensuring durability and consistent output unlike a worn pump that suffers from reduced efficiency and increased noise. Operators might notice a decline in hydraulic system performance, such as slower boom or bucket movements, or an audible grinding noise from the pump area if this part is failing.

Caterpillar Gear-Pump Idler 8N0561 – Part No 8N0561 – 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 TypeGear Pump
MaterialHardened Steel
ApplicationHydraulic System
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing idler gear pump may include a reduction in the speed and power of hydraulic functions and an increase in operating noise. If left unaddressed, the pump's output will continue to decrease, leading to sluggish performance and potential overheating of the hydraulic system. Continued operation with a worn pump can lead to internal damage and eventual loss of hydraulic power.

Installation Tip

Ensure the hydraulic system is completely drained and flushed before installing the new pump to remove any debris. Proper alignment with the drive mechanism is critical to prevent premature wear on the pump shaft and seals.

Service Note

Inspect the hydraulic filter, reservoir, and suction lines for contamination when replacing the idler gear pump.