VolvoEngine Parts

3803577 — 12V 130A Alternator 3884858 3803940 3803577 For Volvo Penta Engine Ad31D Ad40B D41L-A Kamd42A Tamd41A Tmd31D Tmd41L-A

This 12V 130A alternator is a critical component of the engine's electrical system, responsible for generating power to charge the battery and operate electrical accessories. It is manufactured to meet stringent quality standards, ensuring reliable performance and durability compared to a worn unit that may exhibit reduced output or bearing noise. Symptoms of a failing alternator include dimming headlights, a battery warning light on the dashboard, and difficulty starting the engine.

12V 130A Alternator 3884858 3803940 3803577 For Volvo Penta Engine Ad31D Ad40B D41L-A Kamd42A Tamd41A Tmd31D Tmd41L-A – Part No 3803577 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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
MaterialMetal, Copper, Plastic
ApplicationEngine electrical system
Service LifeReplace as needed based on performance
Compatibility3884858, 3803940
ConditionNew — OEM specification aftermarket

Failure Symptoms

A dimming battery warning light or flickering dashboard lights are the first signs of alternator trouble. If ignored, the battery will gradually lose its charge, leading to intermittent engine stalling and difficulty starting. Eventually, the engine will cease to operate as the electrical system loses all power.

Installation Tip

Ensure all electrical connections are clean and free of corrosion before connecting the new alternator. Avoid overtightening the mounting bolts, as this can damage the housing.

Service Note

Inspect the drive belt for wear and proper tension, and check the battery terminals for corrosion.