The McCormick 6606791A1 is a genuine OEM plug designed for various McCormick X-series tractors, including X4.35, X4.40, X5.35, X5.40, X6.420, X6.430, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X8.660, X8.670, and X8.680 models. This essential component ensures proper sealing and fluid containment within the machinery. Manufactured to McCormick's stringent quality standards, it provides a precise fit and reliable performance, crucial for maintaining the integrity of your agricultural equipment. Weighing approximately 0.05 kg, this plug is a direct replacement for the original part.