Did you know? Category winner Alternators / Generators

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

SVB item number: 83469 Manufacturer no.: LR155-20+
View Ratings (54) Questions (16)
Alternator 12V 55A for Yanmar 2GM 3GM 3HM 4JH 4LH Image 1 of 3
Alternator 12V 55A for Yanmar 2GM 3GM 3HM 4JH 4LH Image 2 of 3
Alternator 12V 55A for Yanmar 2GM 3GM 3HM 4JH 4LH Image 3 of 3
360 image Alternator 12V 55A for Yanmar 2GM 3GM 3HM 4JH 4LH Image 1 of 3 Alternator 12V 55A for Yanmar 2GM 3GM 3HM 4JH 4LH Image 2 of 3 Alternator 12V 55A for Yanmar 2GM 3GM 3HM 4JH 4LH Image 3 of 3
Used on a P. Bjørn Olsens Bådeværft Aps Olsen 42
Used on a Jeanneau Sun Odyssey 35
Used on a Jeanneau Jeanneau Merry Fisher 705 IB
Used on a Jeanneau Jeanneau 60 (2018 -2004)
Used on a Sun Odyssey 33
Used on a Sunbeam 37 SL
Has been sold 5 times in the last 7 days
This alternator / generator is identical in construction to the original Yanmar alternator / generator 129772-77200. Product details
only  €144.95
24 | in stock
pcs.
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Available variants

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
Alternator 12V / 115A / for Volvo Penta D1 / D2 / D4 / D6
Alternator 12V / 115A / for Volvo Penta D1 / D2 / D4 / D6
only €239.95
VAT inc., ex-works
To product
Alternator 12V / 60A for Volvo Penta 2000 Series / MD2010-2040 / KA(M)D / MD / BUKH DV
Alternator 12V / 60A for Volvo Penta 2000 Series / MD2010-2040 / KA(M)D / MD / BUKH DV
only €199.95
VAT inc., ex-works
To product
Alternator 12V / 60A for Yanmar 3JH4 / 4JH4 / 3YM30
Alternator 12V / 60A for Yanmar 3JH4 / 4JH4 / 3YM30
€424.83
only €399.95
VAT inc., ex-works
To product
Alternator 12V / 35A for Yanmar 1GM / 2GM / 3GM / 3HM / 3JH
Alternator 12V / 35A for Yanmar 1GM / 2GM / 3GM / 3HM / 3JH
only €119.95
VAT inc., ex-works
To product
Alternator 12V / 40A / Vetus M2.04 / 06 / C5 / D5 / M3.09 / 10
Alternator 12V / 40A / Vetus M2.04 / 06 / C5 / D5 / M3.09 / 10
only €174.95
VAT inc., ex-works
To product

At a glance!

12 V
12 V
Max. charging current: 55 A
Max. charging current: 55 A
Aluminium
Aluminium
customers like: Price/performance ratio
customers like: Price / performance ratio
customers like: Quality
customers like: Quality
by Thibault O.
Alright Alternator installed on a 2GM no problem I recommend
Read all product reviews
by paolo M.
Order processed in a very short time. Perfect product. The alternator works perfectly.
Read all product reviews
by Ingo B.
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).
Read all product reviews
by Kai R.
Very good value for money due to the good fit completely problem-free installation and perfect function
Read all product reviews
by Wilhelm P.
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).
Read all product reviews

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

Accessories

Image of Yanmar V-belt for Alternator 2/3 GM
Yanmar V-belt for Alternator 2/3 GM
only €20.95
Image of Yanmar V-belt for Alternator 2/3 GM YEU
Yanmar V-belt for Alternator 2/3 GM YEU
only €16.95
Image of Yanmar V-belt for Alternator 2/3 GMF
Yanmar V-belt for Alternator 2/3 GMF
only €57.95
Image of Yanmar V-belt for Alternator 2/3 GMF YEU
-12%
Yanmar V-belt for Alternator 2/3 GMF YEU
only €16.95
Image of V-belt Alternator for Yanmar 2GM / 3GM / 3GM30-YEU
V-belt Alternator for Yanmar 2GM / 3GM / 3GM30-YEU
only €17.95
Image of V-belt Alternator for Yanmar 2QM / 3QM
V-belt Alternator for Yanmar 2QM / 3QM
only €12.95
Image of V-belt for Yanmar 2GM20F, 3GM30F
V-belt for Yanmar 2GM20F, 3GM30F
only €20.95
Image of V-belt for Alternator / Generator Yanmar 2QM15 / SB12
V-belt for Alternator / Generator Yanmar 2QM15 / SB12
only €13.95

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

multi-flag Short manual
PDF (214,17 KB)

Systems

Preview system drawing
Basic B2B charging system
Preview system drawing
Victron B2B System
Preview system drawing
Bidirectional B2B charging system

Product safety

Contacts

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)
All reviews Helpful reviews Ratings with Image Latest ratings 5
4
3
1

Customer images (1) from all reviews

Image 1 of 1
Wilfred Z.
by Wilfred Z. Flag of Germany 9/19/2024 Verified purchase Variant: 83469
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everything very good.
Claus O.
by Claus O. Flag of Germany 8/16/2024 Verified purchase Variant: 83470
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Delivery lightning fast!!!
During our vacation on the Göta Canal, the alternator broke! I ordered a new one over the phone literally at the last lock, and after 24 hours the order was delivered to a small town in Sweden. I am very impressed with the service, even a query about an incorrect delivery date in the UPS shipment tracking was handled and resolved in a very friendly manner! Thumbs up for the service from SVB, it couldn't have gone better. Thank you! The alternator has been replaced and the battery is charging!
ARNAUD P.
by ARNAUD P. Flag of France 7/12/2024 Verified purchase Variant: 83469
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Material conforms to the description
Horst P.
by Horst P. Flag of Germany 6/27/2024 Verified purchase Variant: 83470
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Good quality and fast delivery! I am more than satisfied!!!
I'm very satisfied!!!
ULTRASAIL U.
by ULTRASAIL U. Flag of Germany 6/16/2024 Verified purchase Variant: 83472
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Identical alternator
The alternator really does seem to be identical to the one originally installed by Volvo Penta, but at a much lower price. The alternator came with the usual report of the individual final test before packaging - that's all Volvo supplies. Even the impeller for the V-belt fit for me. If it doesn't fit, as I've had with other Volvo Penta replacement alternators before, just take the new and old alternators to the nearest garage and ask them to use a pneumatic impact wrench to transfer the old V-belt pulley from the old alternator to the new one. The old impeller can be reused without any problem, as these alternators, unlike cars, don't have a freewheel that wears out. The conversion with the impact wrench in the garage actually takes a maximum of one minute.
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Customers ask customers

English (1) Deutsch (5) Français (10)
Technical question
Karlis B. | Aug 15, 2025 Flag of English
User image of Karlis B.

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

Answer from SVB customer service
M. B. | Aug 18, 2025
User image of M. B.

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

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Comparison

Image of Alternator 12V / 55A for Yanmar 2GM / 3GM / 3HM / 4JH / 4LH
Alternator 12V / 55A for Yanmar 2GM / 3GM / 3HM / 4JH / 4LH
Image of Alternator 12V / 115A / for Volvo Penta D1 / D2 / D4 / D6
Alternator 12V / 115A / for Volvo Penta D1 / D2 / D4 / D6
Image of Alternator 12V / 60A for Volvo Penta 2000 Series / MD2010-2040 / KA(M)D / MD / BUKH DV
Alternator 12V / 60A for Volvo Penta 2000 Series / MD2010-2040 / KA(M)D / MD / BUKH DV
Image of Alternator 12V / 60A for Yanmar 3JH4 / 4JH4 / 3YM30
Alternator 12V / 60A for Yanmar 3JH4 / 4JH4 / 3YM30
Image of Alternator 12V / 35A for Yanmar 1GM / 2GM / 3GM / 3HM / 3JH
Alternator 12V / 35A for Yanmar 1GM / 2GM / 3GM / 3HM / 3JH
Image of Alternator 12V / 40A / Vetus M2.04 / 06 / C5 / D5 / M3.09 / 10
Alternator 12V / 40A / Vetus M2.04 / 06 / C5 / D5 / M3.09 / 10
Availability / Price
only €144 95
VAT inc., ex-works
24 in stock
only €239 95
VAT inc., ex-works
46 in stock
only €199 95
VAT inc., ex-works
38 in stock
only €399 95
VAT inc., ex-works
Only 3 in stock
only €119 95
VAT inc., ex-works
26 in stock
only €174 95
VAT inc., ex-works
Only 3 in stock
Item no.
83469
83472
83470
83471
83467
83468
Customer ratings
(54)
(57)
(52)
(51)
(51)
(51)
Description
Alternator for inboards
Alternator 12V / 115A
Alternator for inboards
Alternator for inboards
Alternator 12V / 35A
Alternator 12V / 40A
Max. charging current
55 A
115 A
70 A
60 A
35 A
40 A
Adjust
Dual
Dual
Single
Dual
Dual
Dual
Original part number
129772-77200
874502, 3840181, 24110417
873770, 872235
128271-77200
128270-77200
STM1243
Length
184 mm
204 mm
173 mm
160 mm
168 mm
160 mm
Operating voltage
12 V
12 V
12 V
12 V
12 V
12 V
Material
Aluminium
Aluminium
Aluminium
Aluminium
Aluminium
Aluminium
For Volvo Penta
 
D1-13, D1-20, D1-30, D2-40, D2-50, D2-55, D2-60, D2-75, D4-210, D4-225, D6-280, D6-300, D6-310, D6-330, D6-340, D6-350, D6-370, D6-380, D6-400, D6-435, D6-440, D6-480, D4-180, D4-230, D4-260, D4-270, D4-300
KAD32, KAMD32, KAD42, KAMD42, KAD43, KAMD43, KAD44, KAMD44, KAMD300, MD5, MD7, MD11, MD17, MD21, MD22, MD31, MD40, MD2010, MD2020, MD2030, MD2040, 2001, 2002, 2003, 2003T
 
 
 
For Yanmar
2GM20, 3GM30, 3HM35, 4LH, 4JH, 4JH2, 4JH3, 4JH4, 4JH5
 
 
3JH4, 3YM30, 4JH4
1GM10, 2GM20, 3GM30, 3HM35, 3JH2, 3JH3
 
For Bukh
 
 
DV10, DV20, DV24, DV29, DV32, DV36, DV48
 
 
 
For Vetus
 
 
 
 
 
M2.04, M2.06, M2.C5, M2.D5, M3.09, M3.10
Direction of rotation
Clockwise (CW)
Clockwise (CW)
Clockwise (CW)
Clockwise (CW)
Clockwise (CW)
Clockwise (CW)
W terminal
Drive belt
V belt
Flat belt
V belt
V belt
V belt
V belt
Spare part for
Inboard engines
Inboard engines
Inboard engines
Inboard engines
Inboard engines
Inboard engines

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Alternator 12V / 55A for Yanmar 2GM / 3GM / 3HM / 4JH / 4LH
View Ratings (54) Questions (16)
€144.95
VAT inc., ex-works