GMPartsGiant.com offers the wholesale prices for genuine 1986 Chevrolet Suburban C20 parts. Parts like Windows are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.0L, 8 Cyl 5.7L, 8 Cyl 6.2L Diesel, 8 Cyl 7.4L. Model Code: 3/4 TON.