Package included: 1 × Electric Vacuum Pump Power Brake Booster Auxiliary Assembly W/O Product Instruction Notes: The vehicle compatible chart on eBay is not 100% accurate, but the part number provided in our listing is correct, you can just searching by the part number. If in doubt, please send us your VIN, that's the BEST way to check if this is the RIGHT FITMENT. Features: 100% New and High Quality 1 Year Warranty Easy to install, Direct replacement. Electric Vacuum Pump Power Brake Booster Auxiliary Pump Assembly for GM Type:Vacuum Pump Rated Voltage: DC 12V Mounting Insulators Included: Yes .