CATUndercarriage

4e8500 Idler Gr W/ Brackets — Cat 235c 235d

This is a CAT Idler Group with Brackets, a crucial component in the undercarriage that guides and supports the track, ensuring proper alignment and tension. It is manufactured to meet OEM quality standards, providing smooth rotation and durability, unlike a worn idler that can cause excessive track wear and vibration. Operators may notice increased vibration, noise from the front of the machine, or premature wear on the track links when this idler group is failing.

Idler Gr W/ Brackets – Part No 4e8500 – 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 Group with Brackets
MaterialCast steel
ApplicationUndercarriage track guidance
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing idler group include increased noise and vibration from the front of the machine, along with potential track misalignment. If ignored, the idler bearing can seize, leading to rapid wear on the track links and potentially damaging the track frame. Continued operation with a faulty idler risks uneven track wear and potential track derailment.

Installation Tip

Ensure the mounting surfaces on the machine frame are clean and that the new idler shaft is properly lubricated before installation. Do not overtighten the idler shaft retaining hardware, as this can damage the bearings.

Service Note

Inspect the track recoil system, track links, and the drive sprocket for wear when replacing the idler group.