CATUndercarriage

386-0791-3860791 Track Roller 386 0791 — Cat Excavator 302 4D 302 7D

This track roller is a vital component of the undercarriage system, supporting the weight of the machine and guiding the track chain. It is engineered with durable materials to withstand extreme loads and abrasive environments, ensuring smooth rotation and minimal friction. Observable signs of a worn track roller include excessive noise, vibration, or a visible flat spot on the roller surface, indicating potential damage to the track chain and other undercarriage parts.

Track Roller 386 0791 – Part No 386-0791-3860791 – 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 TypeTrack Roller
MaterialHardened forged steel
ApplicationUndercarriage support system
Service LifeReplace as needed based on wear and operating conditions
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Excessive grinding or squealing noises during operation are the first signs of a worn track roller. If ignored, the roller can seize or develop flat spots, causing increased vibration and accelerated wear on the track chain and idlers. Continued use with damaged rollers risks undercarriage damage and potential track derailment.

Installation Tip

Ensure the mounting bolts are torqued to the manufacturer's specifications to prevent loosening or damage. Do not reuse old mounting hardware if it shows signs of wear or stretching.

Service Note

Inspect the track chain, idler, and final drive for any signs of damage or excessive wear when replacing a track roller.