how to find out what model alternator is in my chevy tracker and what others will fit

[splescort 10+ year member]

i have a 2003 chev tracker with the 2.0L 4cyl

i know my stock alt is 70amp

where can i see if another cars alt will fit my tracker???

i am looking for a HO alt round 175> range

an alt shop near me said that they can rebuild mine to 110 amp or if i want to go higher then i will need a different case and custom brackets to be made which then i can go up to 330 amp.

my system is 1500rms for subs and 200rms for the other speakers.

so i am thinking

1700rms/14.4volts=118 amps plus the normal draw of the car 50amp-ish so 170 amps

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[Kangaroux 5,000+ posts]

As long as the pin style for the alt hookup are the same and the engine is the same it should match up. I would hit up excessive amperage and see what they can do for a 200A alt.