CATEngine Parts

197-6548 9 Blade Suction Fan Spider — Cat

This is a 9-blade suction fan spider, an integral part of the engine's cooling system that drives the fan to pull air through the radiator. Manufactured from durable cast iron or steel, it provides a stable mounting point for the fan blades, ensuring efficient airflow compared to a spider with a worn or cracked hub. Operators might notice increased engine operating temperatures or unusual noises from the fan area if this component begins to fail.

9 Blade Suction Fan Spider – Part No 197-6548 – 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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Engine Parts Component

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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 TypeFan Spider
MaterialCast iron
ApplicationEngine cooling fan drive
Service LifeReplace as needed based on inspection
CompatibilityCAT Engine 3056 3054 C6.6 C4.4 C7
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing fan spider is often a noticeable wobble or vibration from the fan assembly during operation. If left unaddressed, the mounting points can weaken, leading to increased stress on the fan belt and pulley system. The ultimate risk is fan detachment, which would severely compromise the engine's cooling capacity.

Installation Tip

Ensure the fan pulley and fan blades are properly aligned with the crankshaft pulley before tightening the spider bolts to prevent premature wear. Do not overtighten the bolts, as this can strip the threads or damage the spider.

Service Note

Inspect the fan belt tension and condition, as well as the water pump, when replacing the fan spider.