Basic Technical Information About High Amp Alternators

Our alternators come in a variety of performance options, as indicated in the drop-down menus in each listing.

100% New H.D.(Heavy Duty) MAXX units are direct heavy duty replacements for your original alternator.

High Performance Super MAXX, Ultra MAXX and Mega MAXX alternators are excellent for extra accessories, high watt sound systems and off road light packages.
Also they can be used as a Super Heavy Duty replacement for your original factory alternator.

High Performance 160, 170, 200 and 250 amp units must have the positive battery wire upgraded, please refer to our technical information page for wire sizes

160 amp units will put out 70-80 amps at idle
170 amp units will put out 75-85 amps at idle
200 amp units will put out 90-100 amps at idle
250 amp units will put out 120-130 amps at idle

If you do not see your vehicle listed and want to place an order please contact customer service.

Pictures are for reference purposes only
Units will vary according to year, make, model and engine size