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Diesel Engine Alternators

To find your API Electrical Alternator, Starter or Solenoid, browse through the API Catalog.
Post a question or comment about Diesel Engine Alternators.
Products: 1 - 36 of 36
Alternator, Diesel Only, Westerbeke, 12 volt, 40 amp, 20122

Alternator, Diesel Only, Westerbeke, 12 volt, 40 amp, 20122

Mfr. API Marine | Mfr No. 20122

Alternator, Diesel Only, Westerbeke, 12 volt, 40 amp, 20122. This API alternator replaces Part No.: 32939 and 37088...
$350.70


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Alternator, Diesel Only, Yanmar 6LP, 80 Amp 12 volt, 20101

Alternator, Diesel Only, Yanmar 6LP, 80 Amp 12 volt, 20101

Mfr. API Marine | Mfr No. 20101

Alternator, Diesel Only, Yanmar 6LP, 80 Amp 12 volt, 20101...
$141.56


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Alternator, Diesel only, 12-32 volt, 70-160 amp

Alternator, Diesel only, 12-32 volt, 70-160 amp

Mfr. API Marine

Alternator, Diesel only, 12-32 volt, 70-160 amp. Leece Neville style alternators for heavy duty marine diesel applications...
$350.70 - $464.38

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Cruising Kit for 20025 Diesel Alternator, Kit1521ALT

Cruising Kit for 20025 Diesel Alternator, Kit1521ALT

Mfr. API Marine | Mfr No. KIT1521ALT

Cruising Kit (Alternator repair kit) for 20025 Diesel Alternator, Kit1521ALT
$54.29


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Delco Style Alternator, Diesel Only, 12v & 24v

Delco Style Alternator, Diesel Only, 12v & 24v

Mfr. API Marine

Delco Style Alternator, Diesel Only, 12v & 24v...
$147.30 - $172.46

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Delco Style Alternator, Diesel Only, Cat Caterpillar, 24 or 32 volt, 75 or 100 amp, 20079, 20085

Delco Style Alternator, Diesel Only, Cat Caterpillar, 24 or 32 volt, 75 or 100 amp, 20079, 20085

Mfr. API Marine

Delco Style Alternator, Diesel Only, Cat Caterpillar, 20079 - 24 volt, 100 amp, 20085 - 32 volt, 75 amp...
$392.96 - $450.68

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Delco Style Alternators, Diesel Only, 78 Amp or 94 Amp, 20019

Delco Style Alternators, Diesel Only, 78 Amp or 94 Amp, 20019

Mfr. API Marine

Delco Style Alternators, Diesel Only, 78 Amp or 94 Amp, 20019...
$172.46 - $187.84

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Diesel Alternator Kit, 12 volt, 140 amp, 20010-KIT

Diesel Alternator Kit, 12 volt, 140 amp, 20010-KIT

Mfr. API Marine | Mfr No. 20010-KIT

Diesel Alternator Kit, 12 volt, 140 amp, 20010-KIT...
$1,072.97


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Diesel Alternator Kit, 12 volt, 140 amp, 20011-KIT

Diesel Alternator Kit, 12 volt, 140 amp, 20011-KIT

Mfr. API Marine | Mfr No. 20011-KIT

Diesel Alternator Kit, 12 volt, 140 amp, 20011-KIT...
$1,118.31


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Diesel Alternator Kit, 12 volt, 140 amp, 20012-KIT

Diesel Alternator Kit, 12 volt, 140 amp, 20012-KIT

Mfr. API Marine | Mfr No. 20012-KIT

Diesel Alternator Kit, 12 volt, 140 amp, 20012-KIT...
$1,072.97


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Diesel Alternator, 12 volt, 200 amp, 21002

Diesel Alternator, 12 volt, 200 amp, 21002

Mfr. API Marine | Mfr No. 21002

API New Diesel Alternator, 12 volt, 200 amp, 21002...
$336.62


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Diesel Alternator, Cummins, 12 volt, 135 amp, 21004

Diesel Alternator, Cummins, 12 volt, 135 amp, 21004

Mfr. API Marine | Mfr No. 21004

Diesel Alternator, Cummins, 12 volt, 135 amp, 21004...
$201.35


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Diesel Alternator, Hitachi-style, Yanmar, 12 volt, 80 amp, 20107-HO

Diesel Alternator, Hitachi-style, Yanmar, 12 volt, 80 amp, 20107-HO

Mfr. API Marine | Mfr No. 20107-HO

Diesel Alternator, Hitachi-style, Yanmar, 12 volt, 80 amp, 20107-HO...
$150.00


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Diesel Alternator, Kubota Engines, 12 volt, 40 amp, 20310

Diesel Alternator, Kubota Engines, 12 volt, 40 amp, 20310

Mfr. API Marine | Mfr No. 20310

Diesel Alternator, Kubota Engines, 12 volt, 40 amp, 20310...
$147.30


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Diesel Alternator, Perkins & Lehman, CAT, 12 volt, 85 amp, 20172

Diesel Alternator, Perkins & Lehman, CAT, 12 volt, 85 amp, 20172

Mfr. API Marine | Mfr No. 20172

API New Diesel Alternator, Perkins & Lehman, CAT, 12 volt, 85 amp, 20172...
$228.38


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Diesel Alternator, Volvo Diesel Engines, 12 volt, 120 amp, 20019-120A

Diesel Alternator, Volvo Diesel Engines, 12 volt, 120 amp, 20019-120A

Mfr. API Marine | Mfr No. 20019-120A

Diesel Alternator, Volvo Diesel Engines, 12 volt, 120 amp, 20019-120A...
$238.03


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Diesel Alternator, Volvo Penta, 12 volt, 35 amp, 20130

Diesel Alternator, Volvo Penta, 12 volt, 35 amp, 20130

Mfr. API Marine | Mfr No. 20130

Diesel Alternator, Volvo Penta, 12 volt, 35 amp, 20130...
$421.13


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Diesel Alternator, Volvo Penta, 24 volt, 35 amp, 20149

Diesel Alternator, Volvo Penta, 24 volt, 35 amp, 20149

Mfr. API Marine | Mfr No. 20149

API New Diesel Alternator, Volvo Penta, 24 volt, 35 amp, 20149...
$187.84


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Diesel Alternator, Volvo Penta, 8.1L GM, 12 volt, 65 amp, 20097

Diesel Alternator, Volvo Penta, 8.1L GM, 12 volt, 65 amp, 20097

Mfr. API Marine | Mfr No. 20097

Diesel Alternator, Volvo Penta, 8.1L GM, 12 volt, 65 amp, 20097...
$201.45


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Diesel Alternator, Westerbeke, 12 volt, 50 amp, 20134

Diesel Alternator, Westerbeke, 12 volt, 50 amp, 20134

Mfr. API Marine | Mfr No. 20134

Diesel Alternator, Westerbeke, 12 volt, 50 amp, 20134...
$478.08


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Diesel Alternator, Yanmar & Perkins, 12 volt, 94 amp, 20026I

Diesel Alternator, Yanmar & Perkins, 12 volt, 94 amp, 20026I

Mfr. API Marine | Mfr No. 20026-I

Diesel Alternator, Yanmar & Perkins, 12 volt, 94 amp, 20026I...
$228.38


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Diesel Alternator, Yanmar & Perkins, 24 volt, 50 amp, 20026

Diesel Alternator, Yanmar & Perkins, 24 volt, 50 amp, 20026

Mfr. API Marine | Mfr No. 20026-24V

Diesel Alternator, Yanmar & Perkins, 24 volt, 50 amp, 20026 ...
$228.38


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Diesel Alternator, Yanmar, 12 volt, 94 amp, 20025I

Diesel Alternator, Yanmar, 12 volt, 94 amp, 20025I

Mfr. API Marine | Mfr No. 20025-I

Diesel Alternator, Yanmar, 12 volt, 94 amp, 20025I...
$223.94


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Diesel Alternator, Yanmar, 24 volt, 50 amp, 20025 & 20025I

Diesel Alternator, Yanmar, 24 volt, 50 amp, 20025 & 20025I

Mfr. API Marine

Diesel Alternator, Yanmar, 24 volt, 50 amp, 20025 & 20025I...
$252.11 - $276.42

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Diesel Alternator, Yanmar, Kohler & John Deere, 12 volt, 40 amp, 20135

Diesel Alternator, Yanmar, Kohler & John Deere, 12 volt, 40 amp, 20135

Mfr. API Marine | Mfr No. 20135

Diesel Alternator, Yanmar, Kohler & John Deere, 12 volt, 40 amp, 20135...
$215.94


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Small Frame Alternator, 24 volt, 60 amp, 20151-OE

Small Frame Alternator, 24 volt, 60 amp, 20151-OE

Mfr. API Marine | Mfr No. 20151-OE

Small Frame Alternator, 24 volt, 60 amp, 20151-OE...
$505.63


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Small Frame Alternator, Diesel Only, 12 volt, 120 amp, 20028

Small Frame Alternator, Diesel Only, 12 volt, 120 amp, 20028

Mfr. API Marine | Mfr No. 20028

Small Frame Alternator, Diesel Only, 12 volt, 120 amp, 20028...
$266.20


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Small Frame Alternator, Diesel Only, 12 volt, 120 amp, 20109

Small Frame Alternator, Diesel Only, 12 volt, 120 amp, 20109

Mfr. API Marine | Mfr No. 20109

Small Frame Alternator, Diesel Only, 12 volt, 120 amp, 20109
$187.84


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Small Frame Alternator, Diesel Only, 20044 78 Amp 12v (Volt), 20045 50 Amp 24v (Volt)

Small Frame Alternator, Diesel Only, 20044 78 Amp 12v (Volt), 20045 50 Amp 24v (Volt)

Mfr. API Marine

Small Frame Alternator, Diesel Only, 20044 78 Amp 12v (Volt), 20045 50 Amp 24v (Volt...
$128.99 - $157.97

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Small Frame Alternator, Diesel Only, Yanmar Perkins, 12 volt, 94 amp, 20026

Small Frame Alternator, Diesel Only, Yanmar Perkins, 12 volt, 94 amp, 20026

Mfr. API Marine | Mfr No. 20026

Small Frame Alternator, Diesel Only, Yanmar Perkins, 12 volt, 94 amp, 20026...
$201.45


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Small Frame Alternator, Diesel Only, Yanmar, 12 volt, 94 amp, 20025

Small Frame Alternator, Diesel Only, Yanmar, 12 volt, 94 amp, 20025

Mfr. API Marine | Mfr No. 20025

Small Frame Alternator, Diesel Only, Yanmar, 12 volt, 94 amp, 20025...
$172.46


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Small Frame Alternator, Diesel Only, Yanmar, 12 volt, 80 amp, 20107HO

Small Frame Alternator, Diesel Only, Yanmar, 12 volt, 80 amp, 20107HO

Mfr. API Marine | Mfr No. 20107HO

Small Frame Alternator, Diesel Only, Yanmar, 12 volt, 80 amp, 20107HO...
$216.88


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Small Frame Alternator, Yanmar, replaces LR 140-132, 12 volt, 35 amp, 20106

Small Frame Alternator, Yanmar, replaces LR 140-132, 12 volt, 35 amp, 20106

Mfr. API Marine | Mfr No. 20106

Small Frame Alternator, Yanmar, replaces LR 140-132, 12 volt, 35 amp, 20106...
$93.24


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Specialty Alternator, Diesel Only, Volvo Penta, 24 volt, 175 amp, 20083

Specialty Alternator, Diesel Only, Volvo Penta, 24 volt, 175 amp, 20083

Mfr. API Marine | Mfr No. 20083

Specialty Alternator, Diesel Only, Volvo Penta, 24 volt, 175 amp, 20083...
$683.56


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Alternator Mounting Foot Conversion Kit, 1" to 2", 118-2

Alternator Mounting Foot Conversion Kit, 1" to 2", 118-2

Mfr. API Marine | Mfr No. 118-2

Alternator Mounting Foot Conversion Kit, 1" to 2", 118-2...
$19.35


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Alternator V-Belt

Alternator V-Belt

Mfr. Yanmar | Mfr No. 25132-003700

Yanmar Alternator V-Belt #25132-003700...
$21.93


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Products: 1 - 36 of 36
Page:  1

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Post a question or comment about Diesel Engine Alternators to our online boating community.
Question
Alternator upgrade

I have a Yanmar 2gm20f, around 1986-87. Can I put an 80 amp alternator on it? Would that require a different belt or any internal changes to the alternator? The engine currently has as standard 55 amp Hitachi alternator.

Submitted by: Tricia
Answer

We do have a new 94 amp Replacement Alternator available and no modifications are necessary.


Question
I am in need of two alternators for a marine engine

I am in need of two alternators for a marine engine (Yanmar 4JH4TE turbo charged 4 cylinder with 75hp). It comes stock with an internally regulated Hitachi (80 amp and saddle mount 3.15 inch-standard Yanmar mount) that will be removed. I will replace it with API 20109 120 Amp Part# 77093. It will be externally regulated.

The engine also has an after-market second alternator mount that fits one inch mounting foot. (This engine is new and was fitted with a second mount for a special 110 volt DC alternator to drive the boats refrigeration system, but that system has failed. A new refrigeration system is being installed and that alternator is no longer needed.)

The second alternator should be rated between no less than 90 amps and no more that 120 amps. It too will be externally regulated.

The 2nd alternator, like the primary, should be a small case alternator with one drive pulley that can accommodates 1/2 inch belts.

Can you advise me please if you sell an alternator with a 1 inch foot mount that meets my requirement? If so I will make a purchase for two alternators.

Submitted by: Charle
Answer

The API 20109 is an internally regulated alternator. API does not make an externally regulated alternator with a 1" mounting foot. I suggest you look Balmar as an alternative.


 
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