CATCooling System

2P2521 Spider As-Fan — Cat 3114 3116

This Spider As-Fan is a crucial element of the engine's cooling system, responsible for driving the fan to ensure adequate airflow through the radiator. Manufactured to meet high-quality standards, it provides reliable performance and durability, unlike a worn or damaged original part. Operators may notice increased engine noise, vibration from the fan, or a tendency for the engine to run hotter than usual if this component is failing.

Spider As-Fan – Part No 2P2521 – 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 TypeFan Hub Assembly
MaterialForged steel
ApplicationEngine cooling fan drive
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A failing fan hub may initially produce audible rattling or grinding noises when the engine is running, especially at higher RPMs. As wear progresses, excessive vibration from the fan assembly can become noticeable, potentially leading to premature failure of the fan blades or shroud. If the hub fails completely, the fan will stop rotating, leading to rapid engine overheating.

Installation Tip

Before mounting, ensure the fan and the hub are perfectly balanced to prevent vibration. Avoid using excessive force when tightening the mounting bolts, as this can strip the threads or damage the hub.

Service Note

Inspect the fan belt and tensioner for wear and proper function when replacing the fan hub.