CATEngine Parts

247-9001 Bucket Cylinder Seal Kit — Cat 320C

This is a bucket cylinder seal kit, essential for maintaining hydraulic pressure and preventing fluid leaks within the excavator's bucket cylinder. It is manufactured to high standards, providing superior sealing performance compared to worn or damaged seals. Operators may notice slow or jerky bucket movements, hydraulic fluid leaks around the cylinder, or a loss of lifting power when this kit fails.

Bucket Cylinder Seal Kit – Part No 247-9001 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 polyurethane
ApplicationExcavator bucket cylinder
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first symptom is often a visible hydraulic fluid leak from the bucket cylinder rod seal. If ignored, the leak will worsen, leading to a gradual loss of hydraulic pressure and slower, less responsive bucket control. Continued operation risks significant hydraulic system contamination and potential damage to the cylinder itself.

Installation Tip

Carefully clean the cylinder bore and rod before installing the new seals to prevent damage and ensure a proper seal. Avoid using sharp tools that could nick or cut the seals during insertion.

Service Note

Inspect the hydraulic fluid for contamination and check the condition of the hydraulic pump and hoses when replacing the bucket cylinder seal kit.