CATEngine Parts

1W9302 Gear- Crankshaft — Cat 3406

This is a crankshaft gear, a critical component within the engine's timing system that drives the camshaft and other accessories. It is manufactured to meet stringent quality standards, ensuring durability and precise timing compared to a worn gear that may exhibit chipped teeth or excessive play. Operator symptoms of a failing gear include abnormal engine noise, rough idling, or a loss of engine power.

Gear- Crankshaft – Part No 1W9302 – 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 TypeCrankshaft Gear
MaterialHardened Steel
ApplicationEngine Timing System
Service LifeReplace based on inspection or engine overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An abnormal knocking or rattling noise from the front of the engine is often the first sign of a worn crankshaft gear. If ignored, this can lead to inaccurate valve timing, resulting in poor engine performance and increased emissions. Continued operation risks significant internal engine damage due to timing misalignment.

Installation Tip

Ensure the crankshaft is at the correct timing mark before attempting to remove the old gear. Avoid using excessive force or improper tools when installing the new gear, as this can damage the gear teeth or the crankshaft snout.

Service Note

Inspect the camshaft gear and timing chain/belt for wear and proper tension during replacement.