Yanmar alternators

Yanmar alternators

Why choose an original or certified replacement part ?

A key component in the onboard electrical circuit, the marine alternator charges your battery bank. Successful replacement starts with precise identification of the original part. Here are the essentials for choosing the right model without mistakes.

To maintain the charging performance of your Yanmar engine, DAM Marine offers a selection of OEM alternators and high-quality equivalent parts. Choosing a marine-grade part ensures optimum resistance to salt environments and perfect compatibility with your wiring harness. Precise identification from the manufacturer plate on your old model remains the essential first step.

Read more about Alternators Yanmar

10 item(s)

ALTERNATEUR VOLVO 24V 40AMP

ALTERNATEUR VOLVO 24V 40AMP

RÉF. ARC83770 | DAM MARINE

Alternateur 24 volt 40 ampères pour moteurs Volvo Penta diesel disposant généralement d'un second alternateur optionnel.

Applications moteurs :

- Volvo série 42 - 43 - 44

- Volvo série 31 - 32 -41

- Volvo série 22

- Volvo série D1-20 - D1-30

- Volvo série D2-40 - 50 -55 - 60 - 75

- Volvo série 60 - 63

- Volvo série 71 - 73

Poulie non inclus à récupérer sur ancien montage.

Livraison express → Monday 03 August
|
Livraison classique → Wednesday 05 August
Commandez dans les
00 h 00 m 00 s
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€234.00 VAT included
€195.00 VAT excluded
DAM MARINE DAM MARINE
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ALTERNATEUR YANMAR 12V 150AMP

ALTERNATEUR YANMAR 12V 150AMP

RÉF. ARC84190 | DAM MARINE

Alternateur 12 volt 150 AMP pour moteur yanmar série 4BY et 6BY.

Qualité OEM.

Livraison express → Monday 03 August
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Livraison classique → Wednesday 05 August
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00 h 00 m 00 s
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€438.00 VAT included
€365.00 VAT excluded
DAM MARINE DAM MARINE
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ALTERNATEUR YANMAR 12V 35AMP

ALTERNATEUR YANMAR 12V 35AMP

RÉF. ARC84135

Pièce non en stock.

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€180.00 VAT included
€150.00 VAT excluded
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Free quote with no obligation
Response within 24 business hours
ALTERNATEUR YANMAR 12V 55AMP

ALTERNATEUR YANMAR 12V 55AMP

RÉF. ARC84185

Alternateur 12 volt 55 ampères pour moteurs Yanmar suivants :

- 2GM20

- 3GM30

- 3HM35

- 3HM35C

- 3HM35F

- 3JH2E

- 3JH2BE

- 3JH3E

- 3JH3CE

- 4JHE

- 4JH-TE

- 4JH-DTE

- 4JH-HTE

- 4JH2E

- 4JH2-TE

- 4JH2-HTE

- 4JH2-HTE

- 4JH2-DTE

- 4JH2-UTE

- 4JH3E

- 4JH3CE

- 4JH3-TE

- 4JH3-TCE

- 4LH-TE

- 4LH-HTE

- 4LH-DTE

- 4LH-STE

- 4LHA-STE

- 4LHA-STZE

- 4LHA-DTE

- 4LHA-DTZE

- 4LHA-HTE

- 4LHA-HTZE

Livraison express → Monday 03 August
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Livraison classique → Wednesday 05 August
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€174.00 VAT included
€145.00 VAT excluded
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ALTERNATEUR YANMAR 12V 80AMP

ALTERNATEUR YANMAR 12V 80AMP

RÉF. ARC84150

Alternateur neuf 12 Volt 80 Amps disposant d'une poulie 1 gorge de diamètre 74mm.

Livraison express → Monday 03 August
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Livraison classique → Wednesday 05 August
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€222.00 VAT included
€185.00 VAT excluded
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PATTE ALTERNATEUR YANMAR...

PATTE ALTERNATEUR YANMAR 128990-77330

RÉF. DM_CR_128990-77330 | YANMAR

Pièce non en stock.

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€82.62 VAT included
€68.85 VAT excluded
YANMAR YANMAR
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PATTE DE FIXATION...

PATTE DE FIXATION ALTERNATEUR YANMAR - 129495-77330

RÉF. DM_CR_129495-77330 | YANMAR

Pièce non en stock.

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€36.65 VAT included
€30.54 VAT excluded
YANMAR YANMAR
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YANMAR 12V 120AMP ALTERNATOR

YANMAR 12V 120AMP ALTERNATOR

RÉF. ARC84120

12v 120 amp alternator for Yanmar engine with serpentine belt.

Livraison express → Monday 03 August
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Livraison classique → Wednesday 05 August
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€318.00 VAT included
€265.00 VAT excluded
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YANMAR 12V 60AMP ALTERNATOR

YANMAR 12V 60AMP ALTERNATOR

RÉF. ARC84168

Alternateur 12V 60 ampères disposant d'une poulie de diamètre 45mm. pour moteurs Yanmar suivants :

- 2YM15

- 3YM20

- 3YM30

- 3JH3E

- 3JH4E

- 4JH3E

- 4JH3-CE

- 4JH3-TCE

Livraison express → Monday 03 August
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Livraison classique → Wednesday 05 August
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€306.00 VAT included
€255.00 VAT excluded
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YANMAR 12V 80AMP ALTERNATOR

YANMAR 12V 80AMP ALTERNATOR

RÉF. ARC84151
Livraison express → Monday 03 August
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Livraison classique → Wednesday 05 August
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€354.00 VAT included
€295.00 VAT excluded
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10 item(s)
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How do you identify the correct alternator reference?

The most reliable method is to read the reference engraved on the body of your old alternator. On Yanmar engines, you will mainly encounter two situations:

  • Original Hitachi fitment: Yanmar equips most of its blocks with Hitachi alternators, easily identified by a reference beginning with LR. This is the safest route for plug-and-play installation.
  • Quality alternatives such as Valeo: major equipment manufacturers offer replacement models that strictly respect the original charging curves and mounting centre distances, providing an excellent budget-friendly alternative.

Which technical criteria should be checked before purchase?

Before confirming your basket, take the time to check these three essential mechanical and electrical points:

1. Voltage and output, or amperage

Most Yanmar circuits operate at 12 V. In terms of output, capacity ranges from 35 A for small engines to more than 125 A. Important: never undersize your alternator in relation to the size of your battery bank. An alternator that is too weak will run under constant overload while trying to recharge a large bank, causing overheating and melting of the stator.

2. Mounting type: isolated ground or case ground?

This is a crucial point in marine use. While most standard engines use a case ground, where the alternator body contacts the engine block, some installations require an isolated bipolar ground. This is often the case on aluminium or steel hulls to prevent galvanic corrosion. Check the wiring type of your original installation.

3. Pulley profile

Alignment with the crankshaft must be perfect. Check your engine drive type: single-groove V-belt pulley or flat multi-rib poly-V pulley. The wrong pulley profile will cause belt slip, overheating and premature bearing failure.

How can you recognise a faulty alternator?

Before blaming the alternator, always check the condition of your connections and the tension of your belt. If in doubt, these are the classic symptoms of a fault:

  • Voltage drop: voltage below 13.5 V at the battery terminals when the engine is running at cruising speed.
  • Warning signals: the battery warning light stays permanently lit on the dashboard.
  • Mechanical noises: a dull rumble or intense metallic whistling, indicating a seized internal bearing or a short-circuited diode bridge.

Mechanic's tip: use the removal operation to inspect the engine environment. A seawater pump leak or oil seepage dripping onto the alternator is often the root cause of its failure. Fix the leak before installing the new part.