CATCab & Body Parts

170-8864 Seal Kit — Cat Excavator 305 5 306

This is a seal kit designed to replace worn or leaking seals within the hydraulic system of Caterpillar excavators. It is manufactured from high-quality materials to withstand high pressures and temperatures, ensuring a reliable seal where a failed seal would allow fluid loss and contamination. Operators may observe hydraulic system leaks, sluggish operation, or a drop in hydraulic pressure when seals begin to fail.

Seal Kit – Part No 170-8864 – CAT Spare Part
Part Specifications
BrandCAT
CategoryCab & Body 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

Clean mating surfaces before fitting cab seals to prevent air and water ingress. Use correct adhesive for glass bonding — structural automotive adhesive, not silicone. Check wiring harness routing when replacing doors or panels.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeSeal Kit
MaterialNBR rubber, PTFE
ApplicationHydraulic System Components
Service LifeReplace as part of hydraulic system overhaul or upon failure detection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of seal failure include external hydraulic fluid leaks around the component and a slight decrease in system responsiveness. If ignored, leaks will worsen, leading to significant fluid loss, potential contamination, and a noticeable drop in hydraulic power and function. This can result in extended downtime and costly repairs to the hydraulic system.

Installation Tip

Thoroughly clean all sealing surfaces and grooves before installing new seals to prevent premature wear or leaks. Ensure new seals are properly lubricated with clean hydraulic oil to prevent tearing during installation.

Service Note

Inspect hydraulic lines, hoses, and the hydraulic fluid reservoir for contamination or damage when replacing seals.