InfinitiPartsDeal.com offers the wholesale prices for genuine 2011 Infiniti G37 Sedan parts. Parts like Rear Bumper are shipped directly from authorized Infiniti dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 2.5L, 6 Cyl 3.5L, 6 Cyl 3.7L. Grade/Trim: Journey, Leather, Premium, Sport, Sport Premium.