94-21 GM 4.3, 4.8, 5.3, 5.7, 6.0, 6.2 TRUCK / SUV 540a XXL Alternator

This is a 540 amp EXTERNALLY REGULATED alternator for GM applications. External regulator Is included, it comes with our single channel external regulator. 

expect 240-250 amps at idle depending on idle rpm.

this is the largest automotive alternator on the market, any questions feel free to ask, we’re happy to help! 

Every unit comes with a lifetime warranty at parts cost, all units are built to order and generally take 2-3 weeks for shipping.

All alternators are supplied in their standard factory color, with the option for custom powder coating available upon request. Please note that the alternator shown in the image may feature a custom color and may not be the exact color alternator you receive, unless specifically requested.