CATHydraulic Parts

7y4650 Caterpillar Cylinder Gp- Stick 7Y4650 — Cat

This is a Caterpillar Cylinder Assembly, specifically designed for the stick (or dipper) function within the excavator's hydraulic system. It is built to withstand high pressures and repeated stress, offering superior durability compared to a worn or leaking cylinder. Operators will typically observe a loss of lifting capacity, slow or jerky stick movement, or the inability to hold a position when this cylinder assembly is compromised.

Caterpillar Cylinder Gp- Stick 7Y4650 – Part No 7y4650 – 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 Cylinder Assembly
MaterialHigh-strength Steel Alloy
ApplicationExcavator Stick/Dipper Circuit
Service LifeReplace when seals leak or rod is damaged; typically 5,000-10,000 hours
CompatibilityOEM specification
ConditionNew — OEM specification

Failure Symptoms

The first indication of a faulty stick cylinder is often a slow or hesitant movement of the excavator's stick. If left unaddressed, the cylinder may begin to leak internally or externally, leading to a loss of holding pressure and reduced lifting performance. Continued operation can result in unpredictable machine behavior and potential damage to the boom or bucket linkage.

Installation Tip

Thoroughly flush the hydraulic lines connected to the cylinder before installing the new unit to remove any contaminants. Ensure the cylinder rod is properly aligned with the mounting points during installation to prevent binding.

Service Note

Inspect the hydraulic hoses and fittings connected to the cylinder for any signs of wear, leaks, or damage, and replace as necessary.