Description: This Listing Includes ONE BRAND NEW Gas fuel petcock valve switch. NOTE: Will work with the following models, but the fuel exits the side of this valve, instead of the bottom, like your original valve. Universal Fits: 1976 - 1981 Yamaha TT-500 SPECS: 12.8mm inside diameter - 16.8mm outside diameter - 1mm thread pitch Please see pictures of the petcock before buying. Package Includes: 1x Petcock With Filter Gasket. Shipping and Handling: Free USPS First Class Mail Shipping Product will be shipped to address provided by PAYPAL Product will be shipped out within 24 hours after payment cleared. NC residents will pay 7% sales tax Return / Refund Return is accepted within 30 days after the buyer receipt the item If this item is damaged or defected upon receipt, customer has up to 30 days from date of receipt for exchange of a new one. Include your name, address, item, daytime telephone, and if you are requesting a refund or exchange. After getting the returned item, we will refund the customer at the item's price ( excluding the shipping costs to and from).