GMPartsGiant.com offers the wholesale prices for genuine 2021 Chevrolet Tahoe 4WD parts. Parts like Radiator Hoses are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 8 Cyl 5.3L, 8 Cyl 6.2L. Model Code: 4 DOOR 1/2 TON.