The McCormick 6678627A1 is a genuine OEM fuel tank cap designed for various McCormick tractor models, including the CX, C, MC, MTX, XTX, and ZTX series. This essential component ensures a secure seal for the fuel tank, preventing contaminants and fuel spillage. Manufactured to original equipment specifications, it guarantees reliable performance and a precise fit for your agricultural machinery. It features an outer diameter of 60 mm, an inner diameter of 40 mm, and a height of 50 mm.