VolvoEngine Parts

20412735 — 12V 35A Alternator 20412735 For Volvo Penta Engine Tad520Ge Tad721Ge Tad722Ge Td720Ge Tad731Ge Tad531Ge

This 12V 35A 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 deliver reliable voltage output under varying engine speeds, unlike a failing alternator that causes battery discharge or electrical malfunctions. Symptoms of a faulty alternator include a dimly lit battery warning light, dimming headlights, and a dead battery after a period of operation.

12V 35A Alternator 20412735 For Volvo Penta Engine Tad520Ge Tad721Ge Tad722Ge Td720Ge Tad731Ge Tad531Ge – Part No 20412735 – 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 alloy housing, copper windings
ApplicationEngine electrical charging system
Service LifeReplace based on inspection or failure
Compatibility20412735, Volvo Penta Tad520Ge, Tad721Ge
ConditionNew — OEM specification aftermarket

Failure Symptoms

A battery warning light illuminated on the dashboard is the most common initial symptom of an alternator problem. If ignored, the battery will eventually discharge, leading to a complete loss of electrical power and engine shutdown. Prolonged operation with a failing alternator can also damage other sensitive electronic components.

Installation Tip

Ensure the alternator drive belt is properly tensioned after installation; a belt that is too loose will slip, and one that is too tight can damage bearings. Double-check all electrical connections are clean and securely fastened to prevent arcing or poor charging.

Service Note

Inspect the condition of the drive belt and tensioner pulley, and test the battery's health when replacing the alternator.