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.
Having issues?
If you are not redirected to PayPal, it could be due to your browser settings. Please check and if necessary deactivate the setting "Hide IP address" in the settings -> Safari -> Hide IP address. Please also check your browser for updates.
MyBoat
Are you already using this item?
Add to my boat now.
To wish list Compare

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
Jean-Marie Azzolin J.
by Jean-Marie Azzolin J. Flag of Germany 10/28/2025 Verified purchase Variant: 83472
Translated automatically
Show original text
Alternator breakdown in Sardinia
Does what it's supposed to. Installation is perfect.
Thanks to the SVB team for the quick processing and delivery!
  • Advantages
  • Max. charging current
  • Material
  • Price/performance ratio
  • Quality
  • Mounting/Installation
  • Accuracy of fit
Daniel S.
by Daniel S. Flag of Denmark 10/16/2025 Verified purchase Variant: 83470
Translated automatically
Show original text
Fanatical price-performance ratio
Fits perfectly in our Volvo Penta 2002 series, very satisfied.
  • Advantages
  • Max. charging current
  • Material
  • Price/performance ratio
  • Quality
  • Mounting/Installation
  • Accuracy of fit
Rémy D.
by Rémy D. Flag of France 10/9/2025 Verified purchase Variant: 83469
Translated automatically
Show original text
Nothing to add
Alternator conforms to the original, easy installation.
  • Advantages
  • Material
  • Price/performance ratio
  • Quality
  • Mounting/Installation
  • Accuracy of fit
LEVANTER S.
by LEVANTER S. Flag of Czechia 9/24/2025 Verified purchase Variant: 83470 in use on a Bavaria Yachtbau GmbH - Bavaria 44
Replacing the alternator
After 23 years of operation, it seemed that an existing alternator was not charging or was not charging the consumable batteries sufficiently, which were not charged even after more than 8 hours of sailing on the engine. Therefore, I decided to replace the alternator with a factory new part. It works like magic!
  • Advantages
  • Max. charging current
  • Material
  • Price/performance ratio
  • Quality
  • Mounting/Installation
  • Accuracy of fit
Images for this rating
Image 1 of 2
Image 2 of 2
Dalibor S.
by Dalibor S. Flag of Croatia 9/12/2025 Verified purchase Variant: 83469 in use on a Jeanneau - Sun Odyssey 35
.
  • Advantages
  • Max. charging current
  • Material
  • Price/performance ratio
  • Quality
  • Mounting/Installation
View all ratings Login and rate this product

Rate product

How would you rate this product?
Disappointed
Completely fails to meet my expectations
Poor
Only some expectations are met
OK
Meets my basic expectations
Good
Slightly better than my general expectations
Excellent
Fully exceeds my expectations
Click on the stars to rate

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

Login to answer this question

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

Customers also bought

Product image of KONG Chain Connection with Swivel
(62)
KONG Chain Connection with Swivel
from €75.95
VAT inc., ex-works
3 variants
Product image of Engine Room - Soundproof Panel 495
(161)
Engine Room - Soundproof Panel 495
from €43.95 (€91.56 / m²)
VAT inc., ex-works
2 variants
-42%
Product image of SEATEC Motor Service Kit for Volvo Penta
(192)
SEATEC Motor Service Kit for Volvo Penta
€70.23
from €40.95
VAT inc., ex-works
15 variants
-8%
Product image of JABSCO Pump Unit for Manual Marine Toilet
(193)
JABSCO Pump Unit for Manual Marine Toilet
€119.89
only €109.95
VAT inc., ex-works
> 100
-57%
Product image of HENGST Replacement Cartridges for Prefilters Type CAV
(36)
HENGST Replacement Cartridges for Prefilters Type CAV
€13.92
2 variants
Product image of HENGST Oil Filter for Yanmar & Sole Diesel
(66)
HENGST Oil Filter for Yanmar & Sole Diesel
only €10.95
VAT inc., ex-works
> 100
Product image of Air Filter for YANMAR 2/3 GM & 2/3 YM
(8)
Air Filter for YANMAR 2/3 GM & 2/3 YM
only €29.95
VAT inc., ex-works
47
-25%
Product image of SEATEC Service Kit for Yanmar 2/3 GM
(21)
SEATEC Service Kit for Yanmar 2/3 GM
€42.49
only €31.95
VAT inc., ex-works
> 100
-26%
Product image of SEATEC Service Kit for Yanmar 2/3 GMF
(3)
SEATEC Service Kit for Yanmar 2/3 GMF
€47.21
only €34.95
VAT inc., ex-works
34
E-mail Newsletter

Product news, offers & new guide videos. Stay up to date!

WhatsApp

New: Get news from SVB straight to your phone!

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