CATEngine Parts

130-6879 Shaft Seal — Cat 3054 3054B

This is a precision-engineered shaft seal designed to prevent lubricant leakage and contaminant ingress in your CAT engine. It is manufactured from durable materials to maintain a tight seal under operating conditions, unlike a worn or cracked seal that allows oil to escape and dirt to enter. Operators may observe oil leaks around the shaft or notice increased wear on the shaft surface if this seal fails.

Shaft Seal – Part No 130-6879 – 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 TypeShaft Seal
MaterialNBR rubber and metal reinforcement
ApplicationEngine shaft sealing
Service LifeReplace during engine overhaul or if leaking
CompatibilityCAT specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing shaft seal is typically a visible oil leak originating from the sealed shaft. If left unaddressed, the leak will worsen, leading to significant oil loss and potential lubrication issues for nearby components. Continued leakage can contaminate the surrounding area and potentially lead to bearing damage if the shaft runs dry.

Installation Tip

Carefully inspect the shaft surface for any burrs or damage before installing the new seal, as these can immediately compromise the seal's integrity. Ensure the seal is pressed in squarely and not cocked, which can lead to premature failure.

Service Note

Inspect the shaft for wear or scoring and clean the sealing surface thoroughly before installing the new shaft seal.