CATEngine Parts

1B8705 Woodruff Key — Cat 320C 320D

This Woodruff key is a semi-circular key used to transmit torque between a shaft and a component, preventing relative rotation within engine systems. It is manufactured to meet stringent OEM quality standards, ensuring precise fitment and durability compared to a worn or damaged key that can lead to slippage. Operators may notice engine performance issues or a loss of power if the key fails, as the connection between components becomes compromised.

Woodruff Key – Part No 1B8705 – 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-Component Torque Transmission
Service LifeReplace as needed during component overhaul
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A worn Woodruff key may initially cause slight hesitation or a momentary loss of power during acceleration or load changes. If left unaddressed, the key can further degrade, leading to intermittent slippage and potential damage to the shaft and mating component. Continued operation with a failing key risks the complete decoupling of the component, rendering the affected system inoperable.

Installation Tip

Ensure the keyway in both the shaft and the component is thoroughly cleaned of any debris or old sealant before installation. Avoid forcing the key into place, as this can damage the keyway or the key itself.

Service Note

Inspect the shaft and the mating component for any signs of wear or damage in the keyway before installing a new Woodruff key.