CATEngine Parts

198-6890 Cogged Belt — Cat Engine 3126 Loader 938G

This cogged belt is a critical component of the engine's accessory drive system, responsible for powering components like the alternator and water pump. Manufactured to meet stringent CAT quality standards, it offers superior durability and resistance to heat and wear compared to a frayed or cracked belt. Operators may notice a high-pitched squealing noise from the engine bay, followed by a loss of charging system function or engine overheating if the belt fails.

Cogged Belt – Part No 198-6890 – 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 TypeCogged Drive Belt
MaterialReinforced rubber composite
ApplicationEngine accessory drive system
Service LifeReplace every 1,000-2,000 hrs or as needed
CompatibilityCAT 3126 Engine
ConditionNew — OEM specification aftermarket

Failure Symptoms

A worn cogged belt may initially produce a high-pitched squealing sound, especially under load or during cold starts. If left unaddressed, the belt can fray and eventually break, leading to a loss of power to critical engine accessories like the alternator and water pump. This can result in battery discharge, engine overheating, and potential engine damage.

Installation Tip

Ensure the belt tensioner is functioning correctly before installation; a weak tensioner will cause premature belt failure. 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 and operation of the belt tensioner and idler pulleys when replacing the cogged belt.