CATEngine Parts

1D1158 Woodruff Key — Cat 320C 320D

This Woodruff key is a semi-circular metal key used to transmit torque between a shaft and a mating component, such as a pulley or gear, preventing relative rotation. Manufactured to meet stringent quality standards, it ensures a secure fit and reliable power transmission, unlike a worn or broken key that can lead to slippage and component damage. Operators may notice a loss of power transmission to a driven component, or hear clicking or slipping noises if this Woodruff key fails.

Woodruff Key – Part No 1D1158 – 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-to-Component Torque Transmission
Service LifeReplace if damaged or during component replacement
CompatibilityOEM specification
ConditionNew — Aftermarket replacement

Failure Symptoms

The first sign of a failing Woodruff key is often a loss of power transmission to the component driven by the shaft, or a noticeable slipping sensation. This can manifest as a driven pulley not turning, or a gear not engaging properly. If the key shears completely, it will result in a complete loss of torque transfer, rendering the driven system inoperable.

Installation Tip

Ensure the keyway in both the shaft and the component is clean and free of debris before attempting to install the key. Do not hammer the key forcefully into place; it should slide in with moderate pressure.

Service Note

Inspect the shaft and the mating component's keyway for any signs of wear or damage when replacing the Woodruff key.