VolvoEngine Parts

3860171 — 12V 55A Alternator 3860171 A000B0431 For Volvo Penta 3.0Gsmwtr 3.0Gspwtr 3.0Gspwts Crusader Omc Engine Bobcat Excavator 225 231 325 328 337 341

This 12V 55A alternator is designed to generate electrical power and recharge the battery while the engine is running, ensuring all electrical systems function correctly. Built to meet rigorous performance standards, it provides reliable output and durability superior to a worn or failing alternator. A faulty alternator will cause the battery to discharge, leading to dimming lights, slow cranking, and eventual electrical system failure.

12V 55A Alternator 3860171 A000B0431 For Volvo Penta 3.0Gsmwtr 3.0Gspwtr 3.0Gspwts Crusader Omc Engine Bobcat Excavator 225 231 325 328 337 341 – Part No 3860171 – Volvo Spare Part
Part Specifications
BrandVolvo
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
MaterialAluminum housing, copper windings
ApplicationEngine electrical charging system
Service LifeReplace every 5,000 hrs or as performance degrades
CompatibilityVolvo Penta OEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing alternator is typically a battery warning light illuminating on the instrument panel. If ignored, the battery will gradually lose its charge, leading to intermittent electrical system failures, such as dimming lights and non-functional accessories. Eventually, the battery will be too depleted to start the engine, leaving the equipment inoperable.

Installation Tip

Ensure the battery is disconnected before removing or installing the alternator to prevent electrical shorts. Double-check that the drive belt is properly tensioned after installation to ensure efficient power transfer.

Service Note

When replacing the alternator, inspect the condition of the drive belt and check the battery terminals for corrosion and secure connections.