CATEngine Parts

1B8743 Woodruff Key — Cat 320C 320D

This Woodruff key is a small, semi-circular metal key used to transmit torque between a shaft and a mating component, such as a pulley or gear. Manufactured to precise dimensions, it ensures a secure connection and prevents slippage under load, unlike a worn or broken key that can lead to component disengagement. Operators may experience a sudden loss of power to a specific system, unusual noises from the drive train, or the driven component no longer functioning when this key fails.

Woodruff Key – Part No 1B8743 – 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 TypeWoodruff Key
MaterialHardened steel
ApplicationShaft and component torque transmission
Service LifeReplace as needed
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first sign of a failed Woodruff key is often a sudden loss of function in the component it connects, accompanied by a clunking or grinding noise. If the connection slips, it can lead to rapid wear on the shaft and mating component. The worst consequence is the complete disengagement of a critical drive component, potentially causing damage to surrounding systems.

Installation Tip

Ensure the keyway on both the shaft and the mating component are perfectly clean and free of any obstructions before attempting to install the key. Do not attempt to force the key; it should fit snugly but without excessive pressure.

Service Note

Inspect the shaft and the mating component's hub for any signs of wear or damage in the keyway area.