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What is up with these things? This is the 3rd one I'm having to put in since May 2006. Is this a common occurrence? Is there something I can do to prevent having to shell out $100 every 3 months?

Thanks!


Well, if you are replacing them for $100 each time, it sounds
like you are using an aftermarket local parts store re-manufactured units.
If that is the case, there is a reason that the parts store
reman's are $100 and the factory replacements are a couple of hundred bucks.

I think your grip is probably with the el-cheapo reman's
that the parts stores sell.

Spend a little extra money, buy a factory alternator or
a quality aftermarket alternator and you probably
will greatly increase the MTBF.

All that is providing your electrical system is in good shape and has no problems.

1995 Trooper LS auto 3.2 DOHC /w SOHC intake
1989 Trooper 2.6 auto
1989 I-Mark RS DOHC 1.6
1991 Stylus XS DOHC 1.8