CATBearing & Bushing

2778667 Idler Gp-Front — Cat 307C 307D

This is a front idler group, a critical component of the undercarriage system that guides and supports the track. It is manufactured to meet stringent quality standards, ensuring durability and performance comparable to the original part, unlike a worn idler which can cause track misalignment and premature wear. Operators may notice increased track noise, uneven track tension, or a tendency for the track to derail when this component begins to fail.

Idler Gp-Front – Part No 2778667 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBearing & Bushing
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

Never strike bearings directly — use a bearing press or driver set. Heat housing (not bearing) to ease installation. Replace bearings in sets where applicable. Check housing bore diameter before fitting — out-of-round bores destroy new bearings.

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

Part TypeFront Idler Group
MaterialHardened Steel
ApplicationUndercarriage System
Service LifeReplace as needed based on wear inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of idler failure may include unusual noises from the undercarriage or a noticeable looseness in the track. If left unaddressed, the idler will continue to wear, leading to increased track wear and potential derailment. Continued operation with a failing idler can cause significant damage to other undercarriage components.

Installation Tip

Ensure the mounting surfaces on the machine frame are clean and free of debris before installation. Avoid overtightening the mounting bolts, as this can strip threads or damage the idler housing.

Service Note

Inspect track chains, rollers, and recoil springs for wear and proper tension during idler replacement.