CATEngine Parts

380-9484 Hydraulic Cylinder Seal Kit — Cat 416D 424D

This hydraulic cylinder seal kit is designed to restore the sealing integrity of hydraulic cylinders, crucial for the proper functioning of loader and dozer components. Manufactured to meet exacting OEM standards, it provides superior resistance to wear and hydraulic fluid degradation compared to worn or damaged seals that can cause leaks and performance loss. Operators may observe slow or sinking cylinders, external fluid leaks, or a general loss of hydraulic power when this seal kit is needed.

Hydraulic Cylinder Seal Kit – Part No 380-9484 – 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 TypeHydraulic Cylinder Seal Kit
MaterialNBR Rubber and Seals
ApplicationHydraulic Cylinder Sealing
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of failing cylinder seals is often external hydraulic fluid leakage around the cylinder rod or barrel. This can progress to internal leakage, causing the cylinder to drift, sink, or respond slowly under load. If left unaddressed, significant leakage can lead to a loss of hydraulic system pressure and reduced machine operational capability.

Installation Tip

Thoroughly clean the cylinder bore and piston rod, ensuring no dirt or debris remains that could damage the new seals during installation. Avoid using sharp tools to pry seals into place; use a proper seal driver or the piston rod itself if designed for it.

Service Note

Inspect the cylinder bore for scoring or damage and check the hydraulic fluid for contamination before installing the new seal kit.