(PARTS ONLY) I sold a few of these and these (4) were returned to me as defective. One was a customers old one that he scammed me on. The other 3 were sold as new and returned because the said they were defective. I dont have a way to check them. I guess its the electrical motor that does not operate correctly. The motor was pulled off of one of them. I am just trying to recover some of my lost money and looking for someone who might rebuild them or use for parts. The product is a genuine OEM control valve for the 08-17 Express 1500 Electrical ABS system. It is a direct replacement part with the manufacturer part number 25879231. The control valve comes from the United States and is a quantity of 1. It is a critical component for maintaining proper ABS functionality in the vehicle. This product is a high-quality GM OEM part designed specifically for the Express 1500 model. Thank you