This product is a lot of 7 vintage Champion RBL-17Y spark plugs. Made of nickel and manufactured in the United States, these spark plugs are designed for durability and performance. With the OE/OEM part number RBL-17Y and manufacturer part number RBL17Y, these Champion spark plugs are sure to meet the ignition needs of your car or truck. Upgrade your ignition system with these high-quality spark plugs that have stood the test of time.