CATEngine Parts

146-5074 Rear Vane Pump Cartridge — Cat 3126 3126B

This is a Rear Vane Pump Cartridge, a key component within the hydraulic system responsible for generating hydraulic pressure. It is manufactured to meet precise OEM standards, ensuring consistent fluid displacement and reliable operation compared to a worn cartridge. Operators may experience slow or erratic hydraulic functions, a loss of system pressure, or unusual noises from the hydraulic pump if the cartridge is failing.

Rear Vane Pump Cartridge – Part No 146-5074 – 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 TypeVane Pump Cartridge
MaterialSteel Alloy, Bronze
ApplicationHydraulic Pump
Service LifeInspect at 2,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial sign of a failing vane pump cartridge is often a noticeable sluggishness or inconsistency in hydraulic functions. As wear progresses, the system may lose overall pressure, leading to weaker lifting or movement capabilities, and the pump may start to produce audible whining or grinding noises. Continued operation risks complete loss of hydraulic power, rendering the equipment inoperable.

Installation Tip

Thoroughly clean the inside of the hydraulic pump housing before installing the new cartridge to prevent contamination of the new components. Ensure the cartridge is correctly oriented and seated before reassembling the pump.

Service Note

Inspect the hydraulic fluid for contamination and check the hydraulic filter condition when replacing the vane pump cartridge.