CATEngine Parts

350-8742 V Ribbed Belt — Cat

This V-ribbed belt drives essential engine accessories such as the alternator, water pump, and air conditioning compressor. It is constructed from durable rubber compounds designed to withstand heat, tension, and constant flexing, ensuring reliable operation of these systems. A worn or broken belt will cause a loss of power to accessories, indicated by a lack of charging, overheating, or a loud squealing noise.

V Ribbed Belt – Part No 350-8742 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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

Part TypeV Ribbed Belt
MaterialReinforced rubber composite
ApplicationEngine accessory drive
Service LifeReplace every 50,000 miles or 2 years
CompatibilityCAT C7, C9, M318F, M320F, M322F
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing belt may initially produce a high-pitched squealing sound, especially on startup or under load. If the belt breaks, the operator will immediately notice a loss of function in driven accessories, such as the alternator failing to charge the battery or the water pump ceasing circulation. Continued operation without these accessories can lead to rapid overheating and electrical system failure.

Installation Tip

Always release tension on the old belt before attempting removal to avoid damaging pulleys or other components. Ensure the new belt is correctly seated in all pulley grooves before applying tension.

Service Note

When replacing the V-ribbed belt, inspect the tensioner pulley and idler pulleys for smooth rotation and proper bearing function.