CATEngine Parts

305-3661 12V 85A Alternator — Cat 3024 3054C

This 12V 85A alternator is responsible for generating electrical power to charge the battery and operate the vehicle's electrical systems while the engine is running. It is built to stringent quality standards, providing consistent voltage output unlike a worn alternator with failing diodes or bearings. Operators may notice a battery warning light, dimming lights, or electrical system malfunctions when this alternator is not functioning correctly.

12V 85A Alternator – Part No 305-3661 – 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 TypeAlternator
MaterialSteel, copper windings, electronic components
ApplicationElectrical charging system
Service LifeReplace as needed based on testing
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing alternator may first present as a battery warning light illuminating on the dashboard or a noticeable dimming of headlights. If the issue progresses, the battery will not receive sufficient charge, leading to intermittent electrical failures and eventually the inability to start the engine. Continued operation risks leaving the equipment stranded due to a depleted battery.

Installation Tip

Before removing the old alternator, disconnect the battery cables to prevent electrical shorts. Ensure the new alternator's mounting points align perfectly and do not force it into place; adjust brackets if necessary.

Service Note

Inspect the drive belt for wear and proper tension, and check the battery terminals and cables for corrosion when replacing the alternator.