CATEngine Parts

289-7716 Stick Cylinder Seal Kit — Cat 3054C 312D

This is a comprehensive seal kit for the stick cylinder, designed to prevent hydraulic fluid leakage and maintain system pressure in Caterpillar excavators. It includes all necessary seals, O-rings, and wipers manufactured from durable, fluid-resistant materials to ensure longevity and performance. Operators may notice hydraulic fluid leaks around the stick cylinder, slow or jerky boom/stick movements, or a loss of lifting capacity when these seals begin to fail.

Stick Cylinder Seal Kit – Part No 289-7716 – 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 TypeStick Cylinder Seal Kit
MaterialNBR rubber, polyurethane, and acetal
ApplicationStick cylinder hydraulic system
Service LifeReplace as needed based on inspection for leaks or wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of failing stick cylinder seals is often visible hydraulic fluid leakage around the cylinder rod or barrel. This can progress to sluggish or erratic operation of the stick, making precise movements difficult. If left unaddressed, significant fluid loss can lead to loss of hydraulic power and potential damage to the hydraulic pump and other system components.

Installation Tip

Carefully clean the cylinder bore and piston rod to remove any dirt or debris that could damage the new seals during installation. Ensure all seals are properly lubricated with system hydraulic fluid before insertion.

Service Note

When replacing the stick cylinder seals, inspect the cylinder barrel for scoring or damage, and check the condition of the hydraulic fluid.