Rollover fuel protection: Rubber flapper valve automatically seals the filler opening if the vehicle becomes inverted to help prevent fuel leakage, Sanctioning body approved: IMCA-approved safety component and required by most oval track and short-track racing organizations, Fueling functionality: Flapper opens during normal fueling and closes instantly in rollover situations for reliable spill control, Complete mounting hardware: Includes nylon sealing washers, nylock nuts, and 1/4-inch retaining studs for secure installation, Fuel cell compatibility: Designed to install between the filler cap flange and fuel cell using standard bolt patterns found on Jaz-style fuel cells.
