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