CATEngine Parts

179-6863 Floating Seal — Cat 3412E 3508B

This is a Floating Seal, a critical component in rotating assemblies designed to maintain a seal between two relatively moving surfaces, often found in final drives or hydraulic components. It utilizes precisely matched sealing faces to prevent the escape of lubricant and the ingress of abrasive contaminants, ensuring the longevity of the protected components. Operators might notice increased noise from the final drive, leakage of oil, or a decrease in drive performance if this seal fails.

Floating Seal – Part No 179-6863 – 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 TypeFloating Seal
MaterialSteel, Rubber (NBR or similar, inferred)
ApplicationFinal drive, hydraulic systems
Service LifeReplace during final drive or hydraulic component service
Compatibility3412E, 3508B, 3516B, 773B
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial indication of a failing floating seal is often the appearance of lubricant leakage from the affected component, such as a final drive housing. If the leak persists, it can lead to a significant loss of lubricant, increasing friction and wear on internal components. The ultimate consequence is accelerated wear, potential component seizure, and costly repairs to the drive or hydraulic system.

Installation Tip

Ensure the sealing surfaces of both the seal and the component housing are meticulously clean and free from any debris or scoring. Apply a light coat of the appropriate lubricant to the seal's O-rings before installation to prevent tearing.

Service Note

When replacing floating seals, inspect the mating surfaces for wear or damage and check the condition of adjacent bearings and gears.