CATEngine Parts

349-3353 Serpentine Belt — Cat C15 C18

This serpentine belt is a crucial component of the engine's accessory drive system, responsible for powering the alternator, water pump, and other essential components. Manufactured to meet rigorous OEM quality standards, it provides reliable tension and grip, unlike a worn belt that may slip or crack. Operators might observe a high-pitched squealing noise from the engine bay, a lack of power to accessories like the air conditioning, or visible cracks and fraying on the belt surface when it is nearing failure.

Serpentine Belt – Part No 349-3353 – 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 TypeSerpentine Belt
MaterialReinforced rubber composite
ApplicationEngine accessory drive
Service LifeReplace every 1,500-2,000 hours or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing serpentine belt is often a loud squealing noise, especially upon startup or acceleration. If ignored, the belt may begin to slip, leading to reduced performance of driven accessories such as the alternator or water pump, potentially causing overheating. A completely broken belt will result in a loss of all accessory functions, leading to rapid engine overheating and potential electrical system failure.

Installation Tip

Before installing the new belt, ensure all pulley grooves are clean and free of debris or damage. Do not use any lubricants or belt dressing on the new belt, as this can cause slippage and premature failure.

Service Note

Inspect the belt tensioner assembly and all accessory pulleys for proper function and alignment when replacing the serpentine belt.