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420A High amp alternator for 420A?


Proven Member
Jun 6, 2021
Looking for a high amp alternator for my 1999 eclipse RS with no luck. I'm looking for one that's over 90 amps due to the amount of power draw from my subs and other items. Anything helps thanks.


Proven Member
Feb 9, 2019
The only two options I see are 85 or 90 amp. There really isn't a market for much else but you could possibly custom order one. I'm not sure who to check with for something like that though. I will add this, I powered a 1000 watt amp and two 12 inch subs for about the first two years of ownership on mine before removing it all. That was with the stock alternator and I'm still using it. At 25 years of age it's still doing it's job nicely, and I never did have issues with it charging a 950CCA battery before I went smaller. If your current alternator is still good I would continue using it. Denso will be my replacement of choice whenever mine stops pushing.
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