ToyotaPartsDeal.com offers the wholesale prices for genuine 2012 Toyota Sienna parts. Parts like Engine Overhaul Gasket Kit are shipped directly from authorized Toyota dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.7L, 6 Cyl 3.5L. Trim: LE, SE, STD, XLE.