The McCormick 116599A2 is an original equipment manufacturer (OEM) fuel tank cap designed for a range of McCormick and Case IH agricultural tractors. This essential component provides a secure and tight seal for the fuel tank, protecting the fuel system from dirt, debris, and moisture while preventing fuel evaporation. Constructed from durable materials, it ensures long-lasting performance and maintains the integrity of your machinery's fuel system. This cap is a direct replacement for the original part, guaranteeing proper fitment and function.