CATEngine Parts

319-8295 Boom Cylinder Seal Kit — Cat C18

This boom cylinder seal kit is essential for maintaining the integrity of the hydraulic boom cylinder, preventing fluid loss and ensuring smooth, controlled operation of the boom arm. It is manufactured to high standards, providing a reliable seal that prevents external leaks and internal bypass, unlike a worn or damaged kit. Operators might observe slow or erratic boom movement, external hydraulic fluid leaks around the cylinder, or a loss of lifting capacity as indicators of a failing seal kit.

Boom Cylinder Seal Kit – Part No 319-8295 – 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 TypeCylinder Seal Kit
MaterialNBR Rubber, PTFE
ApplicationHydraulic Boom Cylinder
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial sign of a failing boom cylinder seal kit is often a slow drift of the boom when the hydraulic controls are not engaged. If ignored, the leakage will worsen, leading to reduced lifting capacity and potentially jerky or unpredictable boom movements. Continued operation with compromised seals can result in significant hydraulic fluid loss and potential damage to the cylinder rod or bore.

Installation Tip

Ensure the cylinder rod and bore are meticulously cleaned and inspected for any imperfections before installing the new seals. Use a proper seal driver tool to avoid damaging the delicate sealing lips during installation.

Service Note

Inspect the cylinder rod for scoring or pitting, and check the condition of the cylinder barrel and piston for any signs of wear or damage.