CATHydraulic Parts

2141555 Gear Pump-Hydraulic — Cat 785D 789D

This is a high-quality hydraulic gear pump designed to generate the necessary flow and pressure for the machine's hydraulic system. Built to meet or exceed OEM specifications, it offers robust construction and reliable performance, outlasting worn or damaged pumps. Operators may experience slow or unresponsive hydraulic functions, decreased lifting capacity, or unusual pump noise when this unit fails.

Gear Pump-Hydraulic – Part No 2141555 – 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 TypeHydraulic Gear Pump
MaterialDuctile iron and steel
ApplicationMain hydraulic system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial symptoms of a failing gear pump include a noticeable decrease in hydraulic system performance, such as slower boom or bucket movements. If ignored, the pump can lose its ability to generate adequate pressure, leading to a significant loss of operational power and potential overheating of the hydraulic fluid. This can result in extended downtime and damage to other hydraulic components.

Installation Tip

Ensure the hydraulic reservoir is filled with the correct type and amount of fluid before starting the pump. Prime the pump if recommended by the manufacturer to prevent dry running.

Service Note

Inspect the hydraulic fluid for contamination and replace the hydraulic filter when installing a new gear pump.