Alternator 12V / 115A / Volvo Penta D1 / D2 / D4 / D6
Available variants:
Alternator 12V / 55A / Yanmar 2GM / 3GM / 3HM / 4JH / 4LH
This alternator / generator is identical in construction to the original Yanmar alternator / generator 129772-77200.
Alternator 12V / 60A / Yanmar 3JH4 / 4JH4
This alternator / generator is identical to the original Yanmar alternator / generator 128271-77200.
Alternator 12V / 60A / Volvo Penta 2000 Series / MD2010-2040
This alternator / generator is identical to the original Volvo Penta alternator / generator 873770.
Alternator 12V / 35A / Yanmar 1GM / 2GM / 3GM / 3HM / 3JH
This alternator / generator is identical to the original Yanmar alternator / generator 128270-77200.
Alternator 12V / 40A / Vetus M2.04 / 06 / C5 / D5 / M3.09 / 10
This alternator / generator is identical to the original Vetus alternator / generator STM1243.
Item no.
83472
EAN
5705541985865
Description
Alternator 12V / 115A
Original part number
874502, 3840181, 3817662
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
Charging Current
115
A
Direction of rotation
Clockwise (CW)
W terminal
Yes
Drive belt
Flat belt
Length
20.4
cm
Adjust
Dual
Product details
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
Compatible with the following Penta engines:
- Volvo Penta D1
- Volvo Penta D2
- Volvo Penta D4
- Volvo Penta D6
Accessories
by Peter O.
2/13/2023
Verified purchase
2/13/2023
Verified purchase
by John N.
6/3/2022
Verified purchase
6/3/2022
Verified purchase
by Albert K.
11/20/2023
Verified purchase
in use on a Cantiere Nautico Cranchi s.r.l. Cranchi Endurance 41
11/20/2023
Verified purchase
in use on a Cantiere Nautico Cranchi s.r.l. Cranchi Endurance 41
Customer images (2) from all reviews
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Comparison with other products
1
This product
2
3
4
5
6
Item no.
83472
83469
83471
83470
83467
83468
Customer ratings
Description
Alternator 12V / 115A
Alternator for inboards
Alternator for inboards
Alternator for inboards
Alternator 12V / 35A
Alternator 12V / 40A
Charging Current
115 A
55 A
60 A
60 A
35 A
40 A
Adjust
Dual
Dual
Dual
Single
Dual
Dual
Original part number
874502, 3840181, 3817662
129772-77200
128271-77200
873770
128270-77200
STM1243
Length
20.4 cm
18.4 cm
16 cm
17.3 cm
16.8 cm
16 cm
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
MD2010, MD2020, MD2030, MD2040, 2001, 2002, 2003, 2003T
Direction of rotation
Clockwise (CW)
Clockwise (CW)
Clockwise (CW)
Clockwise (CW)
Not specified
Not specified
W terminal
Drive belt
Flat belt
V belt
V belt
V belt
Not specified
Not specified
For Yanmar
2GM-20, 3GM-30, 3HM-35, 4LH, 4JH, 4JH2, 4JH3, 4JH4, 4JH5
3JH4, 4JH4
1GM-10, 2GM-20, 3GM-30, 3HM-35, 3JH2, 3JH3
For Vetus
M2.04, M2.06, M2.C5, M2.D5, M3.09, M3.10
Availability / Price
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Technical question
Question:
Tomas H.
asked
on 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.
Answers:
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.
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#
Then you have to change the description of this altenator... this isnt correct: "identical to the original Volvo Penta alternator"