NissanPartsDeal.com offers the wholesale prices for genuine 2016 Nissan Altima Sedan parts. Parts like Heater & Blower Unit 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: 25SL/Moon Roof, Base, Entry, S, S PDS, SL, SR, SV, SV Navigation, Tech.