GMPartsGiant.com offers the wholesale prices for genuine 1988 Chevrolet Suburban V20 parts. Parts like Fuel Injection System are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L. Model Code: 3/4 TON.