InfinitiPartsDeal.com offers the wholesale prices for genuine 2019 Infiniti Q70L parts. Parts like Rear Seat 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.