CATHydraulic Parts

4N1119 Gear- Transfer Pump — Cat 3408 3412

This gear-type transfer pump is essential for circulating hydraulic fluid within the machine's transmission and lubrication systems. It is built to exacting standards, offering robust performance and longevity superior to worn or failing pumps. Operators might observe issues such as slow or jerky transmission engagement, overheating of the hydraulic system, or low oil pressure warnings when this pump is malfunctioning.

Gear- Transfer Pump – Part No 4N1119 – 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 Transfer Pump
MaterialHardened steel gears, cast iron housing
ApplicationTransmission and hydraulic lubrication system
Service LifeReplace every 4,000 hrs or as indicated by performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indicators of a failing transfer pump include sluggish transmission response or a whining noise from the pump area. If ignored, hydraulic system pressure will drop, potentially leading to overheating and severe drivetrain damage. Continued operation risks complete transmission failure due to lack of lubrication and cooling.

Installation Tip

Ensure the pump housing is completely filled with clean hydraulic oil before installation to prevent dry running. Do not reuse the old mounting bolts; use new hardware to ensure a secure seal.

Service Note

Replace the hydraulic filter element and inspect the transmission oil cooler lines when servicing the transfer pump.