For 1987-1989 GMC R2500 Knock Sensor Connector United Automotive 85498SXRY 1988

For 1987-1989 GMC R2500 Knock Sensor Connector SMP 47457MRCG 1988

For 1989 Chevrolet R2500 Knock Sensor Connector SMP 53848TDJY

For 1989 Chevrolet R2500 Knock Sensor Connector SMP 79938NCNK

For 1987-1989 GMC R2500 Water in Fuel Sensor Connector SMP 86542PFSH 1988

For 1989-1991 Chevrolet R2500 Suburban Knock Sensor Connector SMP 32424JFPZ 1990

For 1987-1991 GMC R2500 Suburban Knock Sensor Connector SMP 99699NRDH 1988 1989

For 1987-1989 GMC R2500 Knock Sensor Connector United Automotive 33654JCJB 1988