CATCooling System

5s9897 Spider — Cat 215 561B

This is a replacement fan spider, a structural component that secures the fan blades to the fan hub. It is manufactured to meet original equipment specifications for strength and dimensional accuracy, ensuring balanced rotation unlike a worn or cracked spider that can cause vibration. Operators may notice excessive engine vibration, unusual fan noise, or a visibly unstable fan if this part is failing.

Spider – Part No 5s9897 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

ay dispatch before 3 PM IST.', };

Related CAT Parts

From the same category — may also be needed

3n8449
3N7790, 7C3613
3359117
Cooling Component
20y-03-21121
Excavators & Construction Equipment
096-0747-0960747
Cooling Component
4W7589
Cooling Component
5633398
Water Pump

Browse all CAT Cooling System →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

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 Spider
MaterialCast Iron, Steel
ApplicationEngine Cooling Fan Mounting
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing fan spider can initially cause subtle vibrations felt through the machine's chassis, particularly when the engine is running at higher RPMs. As the spider deteriorates, these vibrations will intensify, potentially leading to increased noise and a noticeable wobble in the fan's rotation. The most significant risk is the eventual detachment of fan blades, which can cause severe damage to the radiator and other engine bay components.

Installation Tip

Ensure that the mating surfaces between the spider, fan blades, and fan hub are clean and free from any burrs or imperfections. Do not reuse old mounting hardware; always use new bolts and ensure they are tightened evenly in a star pattern.

Service Note

Inspect the fan blades for cracks or damage and check the fan belt for proper tension and wear when replacing the fan spider.