The Murray 7019377YP Lawn Tractor Gas Cap / Gauge helps secure the fuel tank while providing a convenient way to monitor fuel level on compatible lawn tractors. This replacement gas cap and gauge is designed to seal the fuel tank opening and indicate the amount of fuel remaining. It works by fitting securely onto the tank while the integrated gauge provides a visual fuel-level reading... https://www.wholetoolbox.com/murray-7019377yp-lawn-tractor-gas-cap-gauge/7019377YP.html