CATHydraulic Parts

126-2016 Gear Pump — Cat 320C 320D

This gear pump is a vital component of the hydraulic system, responsible for generating the flow of hydraulic fluid under pressure. Manufactured to precise specifications, it ensures consistent fluid delivery and system performance, unlike a worn pump that can exhibit reduced output and increased noise. Operators may notice sluggish or erratic hydraulic functions, such as slow boom or implement movement, and potentially audible whining from the pump if it is failing.

Gear Pump – Part No 126-2016 – 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
MaterialCast iron and steel
ApplicationHydraulic system fluid generation
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing gear pump is often a noticeable increase in operating noise, such as whining or grinding. This is typically followed by a reduction in hydraulic system performance, manifesting as slower or weaker implement movements. If left unaddressed, a worn pump can lead to overheating of the hydraulic fluid and potential damage to other system components.

Installation Tip

Thoroughly flush the hydraulic system with clean fluid before installing the new pump to remove any debris. Ensure the pump shaft is properly aligned with the drive coupling to prevent premature wear.

Service Note

Inspect hydraulic fluid, filters, hoses, and cylinders for wear or contamination when replacing the gear pump.