Alternator 12V / 55A for Yanmar 2GM / 3GM / 3HM / 4JH / 4LH

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Max. charging current: 55 A

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At a glance!

12 V

Aluminium

customers like: Price / performance ratio

customers like: Quality

by Thibault O.

Alright Alternator installed on a 2GM no problem I recommend

Order processed in a very short time. Perfect product. The alternator works perfectly.

by paolo M.

Great value for money As always, the alternator was delivered quickly and works perfectly after installation. Since it has more power and is therefore larger, it just fits with the installation, but still without any changes (standard LiMa 35A on the Yanmar 2GM).

by Ingo B.

Very good value for money due to the good fit completely problem-free installation and perfect function

by Kai R.

Alternator for 2GM20 With the old alternator, the charge indicator light never went out completely, it kept glowing. The new one is working flawlessly so far. Remarkably, the mounting holes in the original alternator are also too large (10mm for an 8mm bolt).

by Wilhelm P.

Product data

SVB item number 83469
EAN 8720264380336
Manufacturer no. LR155-20+
Description Alternator for inboards
Original part number 129772-77200
For Yanmar 2GM20, 3GM30, 3HM35, 4LH, 4JH, 4JH2, 4JH3, 4JH4, 4JH5
Operating voltage 12 V
Max. charging current 55 A
Direction of rotation Clockwise (CW)
W terminal No
Drive belt V belt
Length 184 mm
Adjust Dual
Material Aluminium
Spare part for Inboard engines

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-12%

Yanmar V-belt for Alternator 2/3 GMF YEU

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V-belt Alternator for Yanmar 2GM / 3GM / 3GM30-YEU

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V-belt Alternator for Yanmar 2QM / 3QM

only €12.95

V-belt for Yanmar 2GM20F, 3GM30F

only €20.95

V-belt for Alternator / Generator Yanmar 2QM15 / SB12

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Product details

Note:

This product is delivered in original equipment manufacturer (OEM) quality. It is not the original product from the manufacturer.

This alternator / generator is identical to the original Yanmar alternator / generator 129772-77200.
Compatible with the following Yanmar engines:

Yanmar 2GM
Yanmar 3GM
Yanmar 2QM
Yanmar 3QM
Yanmar 3HM
Yanmar 4JH
Yanmar 4LH

Documents

Short manual

PDF (214,17 KB)

Systems

Product safety

What other SVB customers have to say

100% real reviews

54 customer reviews

4.6 (out of 54 ratings)

5 Stars

(42)

4 Stars

(9)

3 Stars

(1)

2 Stars

(0)

1 Stars

(2)

100% recommend SVB

Advantages
Max. charging current (4)
Material (4)
Price/performance ratio (5)
Quality (5)
Mounting/Installation (5)
Accuracy of fit (3)

Customer images (1) from all reviews

by Luciano B.

10/16/2022 Verified purchase Variant: 83467

Excellent, very good consulting service

Installed on the engine

by Dominique M.

6/28/2022 Verified purchase Variant: 83467

Perfect

Received on time, in line with my expectations, don't deprive yourself of it given the price. Sincerely

by John N.

6/3/2022 Verified purchase Variant: 83472

Like original

Perfect replacement to original alternator. Fittings 11 - Easy mounting.
Much cheaper than VP's spare part!
Hopefully this will run even close to the original's hours (15 years 3000 hours)

by Michel M.

2/15/2022 Verified purchase Variant: 83467

assembly on yanmar 2GM

The alternator mounts without mechanical or electrical problems. Not even a connector to modify. The W socket works with an electronic tachometer. Very good replacement product.

by Thibault O.

7/31/2021 Verified purchase Variant: 83469

Alternator 12V / 55A for Yanmar 2GM / 3GM / 3HM / 4JH / 4LH

Alright

Alternator installed on a 2GM no problem I recommend

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Customers ask customers

Technical question

Karlis B. | Aug 15, 2025

Can I add to this alternator external regulator? Wich do you recomend?

Answer from SVB customer service

M. B. | Aug 18, 2025

Hello Karlis, advanced alternator regulators (e.g. #17335#) raise the alternator’s output voltage. On older boats and vehicles this is usually not an issue, but on engines with an ECU it can trigger alarms. For modern engines and vehicles, it’s better to use a Sterling Alternator-to-Battery or Battery-to-Battery charger, as these provide the same performance benefits without interfering with the primary system or ECU. Best regards SVB-Team Bremen

Comparison

Alternator 12V / 115A / for Volvo Penta D1 / D2 / D4 / D6

Alternator 12V / 60A for Volvo Penta 2000 Series / MD2010-2040 / KA(M)D / MD / BUKH DV

Alternator 12V / 60A for Yanmar 3JH4 / 4JH4 / 3YM30

Alternator 12V / 35A for Yanmar 1GM / 2GM / 3GM / 3HM / 3JH

Alternator 12V / 40A / Vetus M2.04 / 06 / C5 / D5 / M3.09 / 10

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