CATElectrical Parts

7N9137 Pulley-Fan — Cat 215B 225

This is a fan pulley, a critical component in the engine's cooling system that drives the fan to regulate engine temperature. Manufactured to meet stringent quality standards, it offers durability and smooth operation, unlike a worn pulley which may exhibit wobble or bearing noise. Operators may observe increased engine operating temperatures, unusual noises from the front of the engine, or a loose or wobbling fan when this pulley fails.

Pulley-Fan – Part No 7N9137 – CAT Spare Part
Part Specifications
BrandCAT
CategoryElectrical 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

Disconnect main battery before working on electrical components. Use dielectric grease on all connector pins. Check ground connections — most electrical faults trace to poor grounds. Test with multimeter before installing new parts.

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

Part TypeFan Pulley
MaterialCast iron or steel
ApplicationEngine cooling system
Service LifeReplace every 2,000-4,000 hours or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing fan pulley is often a persistent squealing or grinding noise originating from the front of the engine. If left unaddressed, the pulley bearing can seize, leading to the belt slipping or breaking, and potentially causing the fan to detach. This can result in rapid engine overheating and severe damage to engine components.

Installation Tip

Before removing the old pulley, mark its orientation relative to the crankshaft if it is keyed, to ensure correct alignment upon installation. When installing the new pulley, ensure it is seated squarely on the shaft and do not use excessive force to hammer it into place.

Service Note

Inspect the condition of the drive belt and the tensioner pulley for wear or damage at the same time.