# Finding Amperage output of alternator

**URL:** <https://forums.speedlife.net/t/finding-amperage-output-of-alternator/41843>\
**Category:** NYSpeed Automotive\
**Created:** [January 14, 2008, 8:40pm UTC](https://forums.speedlife.net/t/finding-amperage-output-of-alternator/41843 "2008-01-14T20:40:59Z")\
**Posts on this page:** 1\
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**Author:** ![squid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/squid/32/4984_2.png) [@squid](https://forums.speedlife.net/u/squid)\
**Post date:** [January 14, 2008, 8:50pm UTC](https://forums.speedlife.net/t/finding-amperage-output-of-alternator/41843/3 "2008-01-14T20:50:37Z")

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Very generally speaking most ‘standard’ alternators are in the range of 90-110 amps. High outputs get up towards around 130. Aftermarket HO’s can run up to about 150 or so. Like 02 said take the part number and Gooogle it and see if that works to see what it is supposed to be. Or hook up with a Mustang forum and ask there.

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