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

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

only €174.95

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

only €144.95

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

only €199.95

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

€424.83

only €399.95

Max. charging current: 115 A

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At a glance!

12 V

Aluminium

customers like: Max. charging current

customers like: Material

by Fanel C.

Product as described Good quality and works fine for now. Hope this one will last longer than the original product from Volvo-Penta...? Fast delivery from SVB24!

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 John N.

Product conforms to the description Punctual and accurate delivery

by REALTA' S.

INSTALLED AND WORKS GREAT. GOOD SERVICE

by FRANCISCO A.

Replacement Its a perfect replacement for the Volvo original . Fitted without any adjustments.

by Peter O.

Product data

SVB item number 83472
EAN 8720264109340
Manufacturer no. A3TR0091ZT+
Description Alternator 12V / 115A
Original part number 874502, 3840181, 24110417
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
Operating voltage 12 V
Max. charging current 115 A
Direction of rotation Clockwise (CW)
W terminal Yes
Drive belt Flat belt
Length 204 mm
Adjust Dual
Material Aluminium
Spare part for Inboard engines

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Flat Belt for Volvo Penta D2-50 / 55 / 60 / 75

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Flat Belt for Volvo Penta D2-40

only €26.95

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 Volvo Penta alternator / generator 874502, 3840181, 3817662.
Compatible with the following Penta engines:
- Volvo Penta D1
- Volvo Penta D2
- Volvo Penta D4
- Volvo Penta D6

Systems

Product safety

What other SVB customers have to say

100% real reviews

57 customer reviews

4.5 (out of 57 ratings)

5 Stars

(42)

4 Stars

(9)

3 Stars

(1)

2 Stars

(0)

1 Stars

(5)

96% recommend SVB

Advantages
Max. charging current (2)
Material (2)
Price/performance ratio (2)
Quality (2)
Mounting/Installation (2)
Accuracy of fit (2)

Customer images (2) from all reviews

by Jaume C.

11/21/2021 Verified purchase Variant: 83472

It is not 100% compatible with my VOLVO PENTA D1-20

Pulley is different, I have had to exchange the pulley from the old alternator. On the good side, the alternator comes from a full test report including power outrpm chart.

by Johannes E.

5/16/2023 Verified purchase Variant: 83472

Not entirely suitable for D1-20

When I installed the alternator, I first saw that the pulley was significantly longer than the original. So get back out there, find an auto repair shop and have someone change the pulley with an impact wrench. Good that we just had a car here in Greece. The alternator lay very loosely in the box, had already punched through the box with the screws and a piece of plastic had broken off. Apart from that, however, it is an inexpensive solution, with Volvo the alternator costs over 1000 euros.

Images for this rating

by Sayakkara G.

8/24/2025 Verified purchase Variant: 83472

title error

impossible to install it on a Bavaria 44 with Volvo penta D2-55 so please change the reference

by Thomas D.

6/9/2025 Verified purchase Variant: 83472

Purchased in February 2024, installed in May 2024, 3 months cruising, winter break, April 2024 defective

The charge regulator is probably defective, as we're experiencing severe fluctuations in the charging voltage. Fortunately, we still had the old replacement alternator, which is working perfectly—no more voltage spikes or drops!

by Angelo C.

3/14/2025 Verified purchase Variant: 83472 in use on a Rodman Polyships S.A.U. - Rodman 38 Yacht (Cruiser)

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

Broke down after just 4 hours of riding

Bought in October 2024, then the winter shutdown period arrived. Now that we are starting again it has started to show 16V sending me an alarm on the engine dashboard. Now the problem is to call the mechanic again to disassemble this and assemble the new one but above all to wait for the times for the warranty and or replacement. In the meantime I have to stop the boat just when I was about to start again

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Customers ask customers

Technical question

Fernando F. | Apr 24, 2024

Hi, I need to change my Volvo Penta D2-55 Alternator but the actual pulley system is in V instead of Flat, do you have the V pulley for this alternator?

Answer from SVB customer service

Karen S. | Apr 26, 2024

Dear Fernando, for this kind of inquiries please contact us at [email protected].

Technical question

Ole R. | Jan 17, 2024

Hello What is the diameter of the belt pulley? And number of grooves on the pulley? Sincerely, Ole Rasmussen [email protected]

Answer

W P. | Jan 22, 2024

Diameter is 62 mm and there are 6 grooves on the pulley.

Technical question

Tomas H. | Aug 9, 2022

Does this alternator have an temperature sensor as the original alternator has? I have lithium battery bank is it will be charging a lot… so temp controlling is a must.

Answer

W P. | Aug 10, 2022

Sorry, we cannot yet say whether this alternator actually works in a temperature-compensated manner. We have forwarded your question to our supplier. As soon as we have the relevant information, we will answer immediately. ///\\\ Here are some basic thoughts on charging lithium batteries with a standard alternator: 1) Please remember that alternators are designed to charge lead-acid battery types and even then they are not suitable for reliably and fully charging deep cycle consumer batteries without additional charging technology. Lithium batteries have a lower internal resistance than lead-acid battery types, which is why they can draw very high currents and also stress the alternator thermally. This is especially true at lower engine speeds. At low engine speeds, the alternator also runs at lower speeds, which also reduces the air flow of the alternator fan, resulting in less cooling of the alternator. 2) To fully charge lithium batteries, a constant voltage of 14.6 V is usually required (check your lithium battery manual). Think about using a battery-to-battery (B2B) charger. Most of these devices have a lithium characteristic and, if selected correctly, can also be used as a current limiter to protect the alternator from thermal stress.

Answer

W P. | Aug 10, 2022

Here I am again. Our supplier has informed us that this alternator does not include a temperature sensor or temperature compensation. The integrated regulator monitors the voltage at B+. ///\\\ In the meantime I did a little bit research and learned the following. Maybe it is of interest for you. There are now 3 alternator types, namely those with a fixed voltage (usually 14 V), those with temperature compensation and those which are regulated by the engine electronics (for engines from the Euro 5 and higher emissions standard). We have to take into account that alternators are designed for the automotive sector and are usually intended to charge a battery (lead-acid type) which is installed closely to the engine. A temperature-compensated alternator should adapt the charging voltage to the ambient temperature of the lead-acid battery in order to avoid overcharging (gassing) at high ambient temperatures and to optimize the restrained electrochemical processes at low temperatures through a higher charging voltage. When the engine is cold, the charging voltage is around 14 V and drops to just a bit over 13 volts as the temperature rises. In any case, this is not sufficient to fully charge a lead-acid consumer battery. Now at the latest you should look in the instructions or in the data sheet of your lithium battery for the required charging voltage and consider whether and to what extent you can charge your lithium battery. If the alternator heats up due to high charging currents at low alternator revolutions, the sensors of a temperature-compensated alternator will react and reduce the charging voltage. This will of course protect the alternator from thermal stress. However, the question arises as to how far and in what period of time you can get the lithium battery charged. If you research a little more on the internet on this subject, you will often be referred to battery-to-battery charging technology, eg. #33047#

Answer

Tomas H. | Aug 10, 2022

Then you have to change the description of this altenator... this isnt correct: "identical to the original Volvo Penta alternator"

Comparison

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

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

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

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

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

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