CATEngine Parts

225-4625 Bucket Cylinder Seal Kit — Cat C13

This bucket cylinder seal kit is designed to prevent hydraulic fluid leakage and maintain system pressure within the excavator's bucket cylinder. Manufactured to meet high-performance standards, it offers superior sealing and durability compared to a worn or damaged seal. Operators may experience slow or jerky bucket movements, external fluid leaks around the cylinder, or a loss of lifting/digging force when this kit fails.

Bucket Cylinder Seal Kit – Part No 225-4625 – 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, polyurethane
ApplicationExcavator bucket hydraulic cylinder
Service LifeReplace as needed based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of seal kit failure is often visible hydraulic fluid leakage around the bucket cylinder rod. This can progress to sluggish or erratic cylinder operation, with the bucket losing its position under load. If left unaddressed, significant fluid loss can lead to system pressure drop and potential damage to the hydraulic pump and other components.

Installation Tip

Carefully clean the cylinder bore and rod before installing the new seals to prevent damage. Ensure all seals are oriented correctly according to the manufacturer's specifications.

Service Note

Inspect the hydraulic cylinder rod for scoring or damage, and check the hydraulic fluid level and condition.