CATEngine Parts

099-5312 Bucket Cylinder Seal Kit — Cat E110B E120B

This is a Bucket Cylinder Seal Kit for CAT equipment, designed to maintain hydraulic pressure and prevent contamination within the bucket cylinder assembly. It is manufactured to meet stringent OEM quality standards, ensuring superior sealing performance compared to worn or damaged seals that lead to leaks and reduced system efficiency. Operators may notice slow or jerky bucket movements, hydraulic fluid leaks around the cylinder rod, or a loss of lifting power when this seal kit fails.

Bucket Cylinder Seal Kit – Part No 099-5312 – 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, PTFE, and metal
ApplicationBucket cylinder hydraulic system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure include a gradual loss of hydraulic pressure, leading to slower or weaker bucket operation. If ignored, leaks will worsen, potentially causing system overheating and increased wear on hydraulic components. Unaddressed leaks can result in significant downtime and costly repairs to the hydraulic system.

Installation Tip

Ensure the cylinder rod is clean and free of any burrs or damage before attempting to install the new seals. Avoid using sharp tools that could nick or cut the delicate sealing surfaces during installation.

Service Note

Inspect the cylinder rod for scoring and ensure the hydraulic fluid is clean and at the correct level.