GMPartsGiant.com offers the wholesale prices for genuine 2010 Buick LaCrosse parts. Parts like Engine & Transmission Mounting are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6L. Model Code: CX 4 DOOR SEDAN, CXL 4 DOOR SEDAN, SPS 4 DOOR SEDAN.