CATEngine Parts

173-3391 Shaft — Cat 320C

This is a critical engine component that transmits rotational power within the engine's internal assembly. It is manufactured to meet stringent Caterpillar quality standards, ensuring superior durability and performance compared to worn or damaged shafts. Operators may notice abnormal engine noise, reduced power output, or difficulty starting the engine when this shaft begins to fail.

Shaft – Part No 173-3391 – 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 TypeEngine Shaft
MaterialForged Steel
ApplicationEngine Internal Transmission
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing shaft might be an unusual metallic knocking or grinding sound from the engine. If ignored, this can lead to increased vibration and a noticeable loss of engine power. Continued operation with a compromised shaft risks severe internal engine damage.

Installation Tip

Ensure the crankshaft and camshaft journals are meticulously cleaned and free of any debris before installation. Avoid applying excessive force or using improper tools, as this can easily damage the shaft's critical surfaces.

Service Note

Inspect all associated bearings, seals, and timing components for wear or damage during replacement.