CATEngine Parts

177-3321 Spider Fan Blade — Cat 3056 924G

This spider fan blade is a critical component of the engine's cooling system, responsible for drawing air through the radiator to dissipate heat. Manufactured to meet strict OEM material and balance specifications, it ensures efficient airflow and longevity compared to a bent or damaged blade that can cause vibration and reduced cooling capacity. Operators might notice the engine running hotter than normal, or hear unusual fan noise if this component is failing.

Spider Fan Blade – Part No 177-3321 – 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 TypeFan Blade
MaterialReinforced polymer or aluminum alloy
ApplicationEngine cooling system
Service LifeReplace if bent, cracked, or unbalanced
CompatibilityCAT 3056 Engine, 924G, 924F, 924H
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing fan blade might be increased vibration or an unusual whistling or flapping noise from the engine compartment. If the blade becomes significantly damaged or unbalanced, it can lead to reduced airflow, causing the engine to overheat under load. Continued operation with a compromised fan blade can stress the fan drive system and potentially lead to further component damage.

Installation Tip

Ensure the fan hub and mounting surfaces are clean and free of debris before attaching the new fan blade. Do not overtighten the mounting bolts, as this can strip the threads or warp the blade.

Service Note

Inspect the fan drive belt and tensioner for wear or proper function when replacing the fan blade.