This Corvette Smog Pump Pulley, with OE/OEM Part Number 14087521 and Manufacturer Part Number 14087521, is a vital component for your vehicle's smog system. It is designed for General Motors brand and is made in the United States. This pulley is suitable for vintage parts and is not considered a performance part. It is compatible with various accessory belts and falls under the category of Pulleys and Accessory Belts in the Car & Truck Parts & Accessories section of eBay Motors.