CATUndercarriage

2W4087 Gear As- Idler — Cat 3412

This gear assembly functions as the idler for the undercarriage track system, providing support and tension to the track. It is built with high-grade materials to withstand the abrasive conditions and heavy loads typical in construction environments, outperforming worn components. Operators might observe excessive track slack, premature track wear, or difficulty in steering if this idler gear fails.

Gear As- Idler – Part No 2W4087 – 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 TypeIdler Gear Assembly
MaterialHardened Steel
ApplicationUndercarriage Track System
Service LifeReplace based on wear and lubrication intervals
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing idler gear may initially present as increased track noise and a tendency for the track to become slack. Continued operation can lead to uneven track wear, potential track derailment, and damage to the track links and rollers. This significantly increases the risk of extended downtime.

Installation Tip

Ensure all mounting surfaces are meticulously cleaned and free from any contaminants before fitting the new idler gear. Avoid forcing the gear onto the shaft; it should fit smoothly if alignment is correct.

Service Note

When replacing the idler gear, inspect the track rollers, carrier rollers, and the track chain for wear and damage.