GMPartsGiant.com offers the wholesale prices for genuine 1992 Chevrolet Blazer parts. Parts like Engine Assembly-Oil Pump,Pan & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 5.7L. Model Code: 1/2 TON.