Premium Material: Features a fully polished aluminum construction, enhancing durability while adding a sleek finish to your vehicle. Unique Design: Boasts a cool racing design with a large Cobra-style, flip-top cap, and roller latch, providing a standout aesthetic appeal. Pressure Control: Vented cap balances fuel tank pressure with the surrounding atmosphere, ensuring efficient operation. Comprehensive Mounting System: The mounting plate features a 6 on 4-1/2" bolt pattern, with mounting gasket and stainless steel hardware included for a secure installation. Standard Fitting: Includes a 2" diameter hose fitting, compatible with a separately sold filler hose. This Speedway Cobra-style fuel filler cap includes a mounting gasket and stainless steel mounting hardware. Fully polished aluminum construction. Large Cobra Gas Cap is vented. Flip top style cap with roller latch. Cap measures 4-5/8" diameter. Mounting base measures 5-1/8" diameter. Hose fitting measures 2" diameter.