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Joined: Aug 2009
Posts: 295
L
Shop Shark
Shop Shark
L Offline
Joined: Aug 2009
Posts: 295
Bosch alternator label reads
0 120 489 882 993 part no I believe
K1 14W 65A 21 electrical description
070 903 023 E I do not know.

I am not installing in an auto so colors etc are not applicabe. It is being used on a demo unit ie make power with bicycle for use in school training.

What I need to know is how to hook it up. Which terminal does what? Not even sure if it used external regulator. Wiring diagram and photo would be great.

Thanks for help
Dan Bentler

Joined: Jun 2009
Posts: 1,596
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'Bolter
'Bolter
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Actually go on the painless wiring website and look at one of their manuals for any of their generic wiring harnesses. They give instructions on how to identify and wire the different alternators.


1946 GMC Pickup - S-10 Frame, 455 Buick, TH400, original patina.

My 46 GMC on Photobucket
Joined: Nov 2005
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'Bolter
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Hy leitmotif, I think the original application for that alternator was 1980 - 83 Volkswagon Vanagon, hope that helps.

Joined: May 2010
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T
New Guy
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Joined: May 2010
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That is an externaly regulated aircooled vanagon alternator. Here is a wiring diagram but it will not help much as the terminals use plugs for the reg.

B+ is output
D- is the charge light

There should be 2 or 3 more terminals that accept a plug to the regulator.


Ted

My ride but looking for a Deco Bolt for the wife.
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'Bolter
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Hy leitmotif and guys, my Bosch catalog lists that alternator as an internal regulator type. There are only two terminals to hook up to, as Toolbox said B+ is output connected to battery positive, and D or D+ is for the no charge light. Of course for there to be a complete circuit you will have to run a ground wire from the alternator housing to the battery negative terminal. I have never seen an externally regulated alternator with only two terminal connections, hope that helps.


Moderated by  Jon G, Rusty Rod 

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