Which altenator to buy?

(poser007) · (poser007) **Join Date: Nov 2004** 09-09-2005, 11:08 PM

I need to upgrade my altenator and I know there is a guy people ahve boughten from on this site? I have a pretty powerful sound system and the altenator was loosing power anyone have any suggestions on where and what to buy?

(mbrown) · (mbrown) **Join Date: May 2005** 09-09-2005, 11:50 PM

I have a stock 90 AMP and it puts out enough to drive 6 speakers, a sub and 4 tower speakers. Most new boats will come with the 90 (Indmar) or the 100 (PCM)amp alternators to supply some serious size stereos. My buddy with a V210 and a stock 45 AMP alt. fried it in one season. While you're at it add a battery isolator switch and a 2nd battery, very helpful. Jumper cables can be so far away sometimes.

(migitty) · (migitty) **Join Date: Aug 2001** 09-10-2005, 12:32 PM

Rather than buy a new one, you might try taking it to an AutoElectrics to have it re-spun. I did that with my stock 50 amp on my LTR and it's now 120. It's worked flawlessly and only cost around $300.

(poser007) · (poser007) **Join Date: Nov 2004** 09-10-2005, 2:47 PM

Matt, I think thats what Im gonna do thanks for the input.

(phaeton) · (phaeton) **Join Date: Feb 2002** 09-10-2005, 2:52 PM

Check your connections. Your alt is probably good just a bad connection. The problem is you will snap the stud off because of the corrosion that has taken place. They were able to replace the stud in my friends 02 Mercrusier. For some reason they could not on mine so I had to purchase a new alt. This is a common problem with Mercruiser alts.