DriveBolt 73TQ63H Upstream Oxygen Sensor Fits 1983-1991 Chevy S10 Blazer

1985-1988 Chevrolet S10 Blazer 2.5L 4 Cyl VIN: E FI Naturally Aspirated GAS. 1983-1984 Chevrolet S10 Blazer Base 2.0L 4 Cyl VIN: Y CARB Naturally Aspirated GAS. 1983-1984 Chevrolet S10 Blazer 1.9L 4 Cyl VIN: A CARB Naturally Aspirated GAS.