The McCormick 6676190A1 is a genuine OEM fuel tank cap designed for a wide range of McCormick CX, MC, and MTX series tractors. This essential component ensures a tight seal for the fuel tank, preventing fuel spillage, contamination, and maintaining proper fuel system pressure. With an outer diameter of 72 mm, an inner diameter of 58 mm, and a height of 50 mm, this cap is engineered to precise specifications for reliable performance and direct fitment on compatible models.