InfinitiPartsDeal.com offers the wholesale prices for genuine 2012 Infiniti M37 parts. Parts like Oil Pump 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, 8 Cyl 5.6L. Grade/Trim: Base, Premitec, Premium, Premium Touring Tech, SportPre, SportTec.