Hummer

Our High Output Alternators will be a direct fit replacement for your factory alternator. These higher amperage units will require replacement of the output cable from the alternator to a 4 gauge cable for alternators up to 250 amp and 2 gauge for the 300 and 320 amp alternators.

These are for the H1 and H2 models only. If you are looking for an alternator for the H3 models use our vehicle application guide.