NissanPartsDeal.com offers the wholesale prices for genuine 2011 Nissan Sentra parts. Parts like Water Pump, Cooling Fan & Thermostat are shipped directly from authorized Nissan dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.0L, 4 Cyl 2.5L. Grade/Trim: 20, SE-R, Spec V.