4x8 Center Fill Spun Aluminum Gas Tank - .39 Gallon GO-Kart, Mini Bike, Riding Lawn Mower - Made in the USA! 4x8 Center Fill Spun Aluminum Gas Tank 1/4 NPT Bottom Center Outlet Vented Gas Cap and Two Stainless Steel Brackets included Highest Quality TIG Welds!! Our Tanks are 100% American Made!