CATBearing & Bushing

cr4094 Idler — Cat D6D

This is a high-quality idler assembly, featuring a robust bearing designed to guide and tension the track on Caterpillar crawler dozers. It is constructed from durable materials meeting rigorous standards, ensuring consistent performance and longevity compared to worn or damaged idlers. Operators may observe excessive track slack, unusual noises from the undercarriage, or a tendency for the machine to wander if this idler assembly is failing.

Idler – Part No cr4094 – 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 TypeIdler Assembly
MaterialSteel Alloy with Hardened Bearing
ApplicationCrawler Undercarriage
Service LifeReplace based on inspection or 4,000 hrs
CompatibilityCTP aftermarket replacement
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first sign of a failing idler may be a noticeable increase in track noise or a visible looseness in the track. If ignored, the bearing within the idler can seize, leading to track derailment or damage to the track links and rollers. This can cause significant operational disruption and costly undercarriage repairs.

Installation Tip

Before installing, thoroughly clean the mounting surfaces and ensure the track tensioning system is functioning correctly. Avoid overtightening the idler mounting bolts, as this can damage the threads or the idler housing.

Service Note

Inspect all track components, including rollers, carrier rollers, and sprockets, for wear and damage when replacing the idler assembly.