For 1987-1989 GMC R3500 Alternator Rectifier Set SMP 89494ZH 1988

For 1987-1989 GMC R2500 Alternator Rectifier Set SMP 26496ZK 1988

For 1987-1989 GMC V3500 Alternator Rectifier Set SMP 74357PB 1988

For 1987-1990 GMC R3500 Alternator Rectifier Set SMP 66865WY 1988 1989

For 1985-1988 GMC Safari Alternator Rectifier Set SMP 98265MT 1986 1987

For 1987-1989 GMC V3500 Alternator Rectifier Set SMP 44189BG 1988

For 1987-1989 GMC R2500 Alternator Rectifier Set SMP 45194CN 1988

For 1979-1986, 1988-1989 GMC C1500 Alternator Rectifier Set SMP 78285HB 1980