CATEngine Parts

357-2637 Fan Belt — Cat 320D

This is a V-belt designed to transmit power from the engine's crankshaft to engine accessories like the alternator, water pump, and fan. It ensures these components operate at the correct speed, maintaining engine cooling and electrical system function. A worn belt will appear frayed, cracked, or glazed, leading to reduced accessory performance and potential overheating.

Fan Belt – Part No 357-2637 – 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-Belt
MaterialReinforced rubber composite
ApplicationEngine accessory drive
Service LifeReplace every 1,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A worn fan belt may initially cause a high-pitched squealing noise, especially on startup or under load. If ignored, the belt can slip, leading to reduced performance of accessories like the alternator and water pump, potentially causing battery discharge or engine overheating. Continued operation with a failing belt risks it breaking, disabling critical engine functions.

Installation Tip

Ensure the belt tensioner is functioning correctly before installing the new belt; a faulty tensioner will quickly damage a new belt. Do not use excessive force to pry the belt onto the pulleys, as this can damage the belt's internal structure.

Service Note

Inspect the condition of the pulleys and the belt tensioner when replacing the fan belt.