CATUndercarriage

1409597 Bushing (Idler Gear) — Cat 777

This bushing is a critical component within the idler gear assembly, providing a low-friction surface for rotation and supporting the gear's function in the undercarriage system. Manufactured to precise standards, it ensures optimal performance and longevity, unlike a worn bushing that would allow excessive play and noise. Operators may notice increased track slack, abnormal wear patterns on the track chain, or a distinct grinding sound when the idler gear bushing fails.

Bushing (Idler Gear) – Part No 1409597 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeBushing (Idler Gear)
MaterialBronze Alloy
ApplicationUndercarriage Idler Gear
Service LifeReplace as needed based on wear inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a worn idler gear bushing is often an increase in play within the idler assembly, potentially causing a clunking noise. If not replaced, the bushing can wear through, leading to metal-on-metal contact, accelerated wear on the idler gear and shaft, and possible track misalignment. This can result in premature wear of the entire undercarriage.

Installation Tip

Ensure the idler gear shaft is clean and free of burrs before pressing in the new bushing to prevent damage. Do not force the bushing; it should be pressed in squarely to avoid misalignment.

Service Note

Inspect the idler gear and shaft for wear and damage when replacing the idler gear bushing.