CATUndercarriage

4N9325 Pulley-Alternator Drive — Cat 14H NA 16G

This is an alternator drive pulley designed for Caterpillar equipment, ensuring the alternator receives consistent rotational force from the engine's crankshaft. It is manufactured to meet stringent OEM material and dimensional standards, providing superior durability and performance compared to worn or damaged pulleys that may exhibit wobble or runout. Operators may notice a lack of battery charging, dimming lights, or a squealing noise from the belt if this pulley begins to fail.

Pulley-Alternator Drive – Part No 4N9325 – CAT Spare Part
Part Specifications
BrandCAT
CategoryUndercarriage
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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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Installation & Application Notes

Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.

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

Part TypeAlternator Drive Pulley
MaterialSteel
ApplicationEngine accessory drive system
Service LifeReplace when worn or damaged, typically inspected during belt service
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing alternator drive pulley may initially present as a slight wobble or an intermittent squealing noise from the belt. If left unaddressed, the pulley can cause premature belt wear or slippage, leading to insufficient battery charging and potential electrical system issues. Continued operation with a severely damaged pulley risks belt detachment or damage to the alternator shaft.

Installation Tip

Ensure the pulley bore is clean and free of debris before installation to guarantee a flush fit against the alternator shaft. Avoid using excessive force or hammering on the pulley to seat it, as this can damage the bearing or shaft.

Service Note

Inspect the alternator drive belt and tensioner assembly for wear and proper function when replacing the alternator drive pulley.