NissanPartsDeal.com offers the wholesale prices for genuine 2011 Nissan Altima Sedan parts. Parts like Engine Control Module are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.5L, 6 Cyl 3.5L. Grade/Trim: Base, S, SE, SL, SR.