CATHydraulic Parts

9J5058 Caterpillar Pump G 9J5058 — Cat

This is a Caterpillar brand hydraulic pump, identified by part number 9J5058, designed to generate hydraulic flow for various machine functions. It is manufactured to meet CAT's rigorous quality and performance standards, offering reliable operation over a long service life. Operators might experience a loss of hydraulic system pressure, slow or erratic movement of hydraulic components, or unusual pump noise if this pump is failing.

Caterpillar Pump G 9J5058 – Part No 9J5058 – 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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Hydraulic Component

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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 Pump
MaterialCast Iron and Steel
ApplicationHydraulic System
Service LifeReplace as needed based on performance
CompatibilityCAT Hydraulic Parts Equipment
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing 9J5058 hydraulic pump will first manifest as a gradual decrease in hydraulic system performance, such as slower boom or bucket movements. If operation continues, the pump may start to generate excessive heat or noise, indicating significant internal wear. The ultimate consequence of ignoring a failing pump is a complete loss of hydraulic function, potentially leaving the equipment inoperable.

Installation Tip

Before installing, ensure the hydraulic reservoir is clean and the fluid level is correct; inspect the suction strainer for blockages. Do not operate the pump without sufficient hydraulic fluid, as this will cause immediate internal damage.

Service Note

Inspect the hydraulic fluid and filter for contamination, and check all hydraulic lines connected to the pump for leaks or damage.