Fits 1958-1964 swingarm Big Twin. Side fill with mounting bracket. Chrome plated. Tank is original OEM reproduction except for two important modifications. The first and probably most important is to find a grade of steel much stronger than the original for all brackets. The two places where the holes are mounted have a pressed-in support washer for added strength to prevent splitting, thus eliminating fatigue. The second is to chrome plate these tanks. Each tank comes with filler cap and necessary mounting hardware. Sold each.