DB Electrical HO-7861-7-200 New Alternator for High Output 200 Amp 5.7L 5.7 Chevy GMC C K Truck 89 90 91 92 1989 1990 1991 1992, Chevy GMC Suburban 5.7L 5.7 89 90 91 92 93 1989 1990 1991 1992 1993 100% New aftermarket high output alternator built to meet OEM specifications 1-year warranty protects you after your purchase Factory direct pricing with no middleman markup delivers exceptional value Specs: Under full load conditions, amperage output at 1200 engine rpm will peak at 200 Amps, amperage output at 600 engine rpm (idle) will peak at 100 Amps