CATEngine Parts

1184024 Boom Stick Cylinder Seal Kit — Cat 320 320L

This is a seal kit for the boom stick cylinder, essential for maintaining hydraulic system integrity. It ensures proper sealing to prevent fluid leaks and contamination, maintaining optimal cylinder performance. A worn seal kit can lead to slow boom operation, external hydraulic fluid leaks, and potential internal cylinder damage.

Boom Stick Cylinder Seal Kit – Part No 1184024 – 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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Boom Cylinder Seal Kit

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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 TypeHydraulic Cylinder Seal Kit
MaterialNBR rubber, PTFE, metal
ApplicationBoom Stick Cylinder
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Slow or jerky boom movement is often the first sign that the boom stick cylinder seals are failing. If ignored, the cylinder may lose its lifting capacity and external leaks will become more pronounced. Continued operation with compromised seals can lead to internal cylinder damage and hydraulic system contamination.

Installation Tip

Ensure the cylinder rod and bore are completely clean and free of debris before attempting to install the new seals. Avoid using sharp tools that could nick or scratch the seal lips during installation.

Service Note

Inspect the cylinder rod for scoring and the hydraulic fluid for contamination when replacing the boom stick cylinder seal kit.