GMPartsGiant.com offers the wholesale prices for genuine 2019 GMC Sierra 1500 Limited 2WD parts. Parts like Accelerator Control are shipped directly from authorized GM dealers and backed by the manufacturer's warranty. Parts fit for the following vehicle options. Engine: 6 Cyl 4.3L, 8 Cyl 5.3L. Model Code: 1500 DOUBLE CAB STANDARD BOX.