CATEngine Parts

1B8702 Woodruff Key — Cat 320C 320D

This woodruff key is a small, semi-circular metal component used to connect a rotating shaft to a pulley or gear, preventing slippage. Manufactured to meet high-strength steel specifications, it offers superior resistance to shear and wear compared to a damaged or missing key. Symptoms of a failed woodruff key include rattling noises, vibration, and a loss of power transmission to the connected component.

Woodruff Key – Part No 1B8702 – 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
ApplicationCrankshaft or camshaft drive
Service LifeReplace as needed upon inspection
CompatibilityCTP aftermarket replacement
ConditionNew — OEM specification aftermarket

Failure Symptoms

A loose or sheared woodruff key typically causes a distinct rattling or knocking sound during engine operation, especially under load. If the key fails completely, the component driven by the keyway will cease to rotate, resulting in a loss of function for that system. Continued operation with a damaged key can lead to further damage to the keyways on both the shaft and the driven component.

Installation Tip

Thoroughly clean the keyway on both the shaft and the mating component to ensure proper seating of the new key. Never attempt to hammer the key into place, as this can damage the keyway or the key itself.

Service Note

Inspect the keyway on the crankshaft and the mating component for signs of wear or damage.