Alternator Parts ?

[nial]

I have a Hitachi alternator L135-26. That's a 35 Amp model fitted as standard on Yanmar GM1 diesels. It only has 126 hours on it but has one or more faulty diodes that cause it to drain the battery when engine is not running. It has an internal regulator and brush housing mounted on the diode assembly. I'd be able to unsolder the diode assembly from the stator leads, remove the brush housing from it and solder in a new diode assembly with the existing brush housing reattached. But where can I find a new diode assembly? I presume it's made to fit that particular Hitachi alternator but I cannot find anywhere that sells them, or indeed any other part for Hitachi alternators. People who repair them must have access to parts, right? If I take it to a repair guy it's a minimum of $100 which I can't afford.
nial

[Dsanduril]

Can you read the part numbers on the diodes themselves? Then I'd go to someplace like:

Allied Electronics

and see if I could get them there. Alternatively, if you can read the bridge part number, this site is useful:

Lange Machinery

They're in China and probably produce the thing. Not an easy site to search unless you have the part number, but if you do they have an interchange list that shows all of the various manufacturers that use the same bridge, then you can go to an auto parts store and get the one for the Nissan or Lester that fits your Hitachi.

[fairbank56]

Alternator Parts from Fleet Alternator Starter