CATElectrical Parts

7W5684 Pulley-Crankshaft — Cat 814B 815B

This crankshaft pulley is a critical component of the engine's accessory drive system, responsible for transmitting rotational power to components like the alternator and water pump. It is manufactured to meet stringent OEM quality standards, ensuring durability and precise balance compared to a worn pulley that may exhibit cracks or imbalance. Operators may notice engine accessory malfunctions, unusual noises from the front of the engine, or belt slippage when this part begins to fail.

Pulley-Crankshaft – Part No 7W5684 – 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 TypeCrankshaft Pulley
MaterialCast Iron
ApplicationEngine Accessory Drive
Service LifeReplace every 4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing crankshaft pulley is often an audible wobble or vibration from the front of the engine. If ignored, the pulley can develop cracks or seize, leading to a loss of power to all belt-driven accessories. This can result in overheating, loss of battery charge, and ultimately, engine shutdown.

Installation Tip

Ensure the crankshaft snout is clean and free of debris before installation to prevent improper seating. Do not use excessive force or pry against the pulley flange when removing or installing.

Service Note

Inspect the accessory drive belt and tensioner for wear or damage when replacing the crankshaft pulley.