CATBearing & Bushing

6Y9379 Cylinder Gp-Hoist — Cat 793

This is a hydraulic cylinder assembly responsible for converting hydraulic pressure into linear force to operate heavy-duty functions. It is built to OEM quality standards, ensuring reliable performance and durability under extreme operating conditions, unlike a worn or leaking cylinder. Operators may experience slow or jerky boom/lift movements, or a loss of lifting capacity when this cylinder group fails.

Cylinder Gp-Hoist – Part No 6Y9379 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
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

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeHydraulic Cylinder Assembly
MaterialHigh-strength steel alloy
ApplicationHoist/Lift system
Service LifeReplace based on inspection or performance degradation
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial symptoms include a noticeable decrease in lifting speed or a tendency for the equipment bed to drift downwards when not actively being lifted. If ignored, internal leaks can worsen, leading to complete loss of lifting function and potential uncontrolled lowering of the load. This poses a significant risk to personnel and equipment.

Installation Tip

Thoroughly flush the hydraulic system to remove any contaminants before connecting the new cylinder. Ensure the piston rod is properly aligned with the cylinder bore during installation to prevent binding.

Service Note

Inspect hydraulic lines, seals, and the hydraulic pump for any signs of wear or leaks when replacing the hoist cylinder group.