CATEngine Parts

1B8701 Woodruff Key — Cat 320C 320D

This Woodruff Key is a small but vital component used to connect rotating shafts to gears or pulleys within the CAT engine system, preventing slippage and ensuring positive drive. It is manufactured from hardened steel to withstand significant torque and shear forces, unlike a worn key that can become rounded or fractured. Operators may notice intermittent power loss, gear slippage, or unusual clicking noises when this key begins to fail.

Woodruff Key – Part No 1B8701 – 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 gear/pulley connection
Service LifeReplace as needed or during component replacement
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing Woodruff key is often a slight hesitation or slippage during power transmission. If ignored, the key can shear or the keyway can become damaged, leading to complete loss of drive for the connected component. Continued operation risks damage to the shaft and the mating component.

Installation Tip

Ensure the keyway in both the shaft and the mating component are clean and free of debris before installation. Do not force the key; it should slide in smoothly.

Service Note

Inspect the shaft and the hub for any signs of wear or damage in the keyways when replacing a Woodruff key.