CATCooling System

1786578 Fan — Cat 320C

This fan is a critical component of the engine's cooling system, designed to draw air through the radiator to dissipate heat. Manufactured to meet stringent quality standards, it ensures efficient heat exchange, unlike a worn fan which may exhibit cracked blades or reduced rotational speed. Operators may notice increased engine temperatures, audible fan noise, or a lack of airflow through the radiator when this part fails.

Fan – Part No 1786578 – CAT Spare Part
Part Specifications
BrandCAT
CategoryCooling System
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

Flush cooling system with distilled water before refilling. Use pre-mixed coolant — never plain water, which causes corrosion. Pressure-test system after any cooling repair. Check thermostat by immersing in hot water — should open at rated temperature.

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

Part TypeEngine Fan
MaterialReinforced polymer or metal
ApplicationEngine cooling system
Service LifeReplace every 2,000-4,000 hours or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms include increased engine operating temperatures, especially under load or at low speeds. If the fan is damaged or weakened, you might hear unusual noises like flapping or whistling. Continued operation with a failing fan can lead to persistent overheating, potentially causing severe engine damage.

Installation Tip

Ensure the fan is correctly oriented to pull air through the radiator, not push it away. Avoid overtightening the mounting bolts, which can strip threads or crack the fan hub.

Service Note

Inspect the fan shroud, radiator fins, and drive belt tension when replacing the fan.