I'm putting a big stereo system in the new boat. I've been trying to find high output "marine" alternators with no luck. Anyone know who has them in 160 to 200+ amp??
I found them in up to 250 amp for auto applications. Can I use these or do they need to be espically for marine?

We had a local aleternator shop rebuild the stock ones to 250 amps each when we had issues power wise on the scarab. Same body, better guts.

there are ones called mean grean that are supposed to be good

I think the only difference for marine is the screens on the vents. I got mine here:

http://www.4alterstart.com/pages/sto...art.com/marine

A good secret is to use a marine deisel alternator...they make more beans...and start charging at a lower rpm....great for idle zones

I think I have a couple of brand new ones that came off a Caterpillar motor if you are interested.

I got my 130 amp one from dbelectrical

they are large case, 1 wire and were a snap to install

Hi Pete, do you know if they are over 130 amp. If they are what do you want for them? Thank you

Joe has Balmar alternators on his Gun, the seem to work good.

http://www.balmar.net/

I bought my 100 amp alternator from www.dbelectrical.com too.
One word of caution, a larger output usually means a larger housing. I had to use a shorter than normal drive belt to get mine to work. If the belt stretches more than an inch, I'll need a new belt.