LexusPartsNow.com offers the wholesale prices for genuine 2000 Lexus GS300 parts. Parts like Ventilation Hose are shipped directly from authorized Lexus dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 3.0L, 8 Cyl 4.0L, 8 Cyl 4.3L.