GMPartsGiant.com offers the wholesale prices for genuine 2019 Chevrolet Blazer 2WD parts. Parts like Engine Assembly-Cylinder Head & Related Parts are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.5L, 6 Cyl 3.6L. Model Code: HIGH COUNTRY/LTZ 4 DOOR SUV, L 4 DOOR SUV, LT 4 DOOR SUV, RS 4 DOOR SUV.