CATEngine Parts

1B8722 Woodruff Key — Cat 320C 320D

This Woodruff key is a semi-circular shaped metal key used to connect a rotating machine element to a shaft, preventing relative rotation. It ensures positive drive engagement and maintains precise timing within the engine's timing gear train. A worn key will exhibit rounded edges and a loose fit, leading to timing inaccuracies and potential component damage.

Woodruff Key – Part No 1B8722 – 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
ApplicationEngine Timing Gear Train
Service LifeReplace if removed or shows wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing Woodruff key is often a slight hesitation or rough running as engine timing becomes inconsistent. If left unaddressed, the key can shear, leading to significant timing deviations and potential internal engine damage. This can result in a complete loss of engine power and require extensive repairs.

Installation Tip

Ensure the keyway in both the shaft and the component is clean and free of any burrs or debris before attempting installation. Do not force the key into place; it should fit snugly but without excessive pressure.

Service Note

Inspect the timing gears and any associated pulleys for wear or damage when replacing the Woodruff key.