DB Electrical HO-7977-11-220 New Alternator For High Output 220 Amp 7.4L 7.4 Chevy GMC P Van 89 90 91 92 93 1989 1990 1991 1992 1993, 6.2L 6.2 Diesel Chevy GMC P Van 91 92 93 1991 1992 1993