The McCormick 6678619A1 socket is a genuine OEM replacement part designed for various McCormick X-series tractors. This essential component ensures proper electrical or mechanical connection within your agricultural machinery, maintaining optimal performance and reliability. Engineered to McCormick's stringent quality standards, it provides a precise fit and durable operation for models including X4.20, X4.30, X4.40, X4.50, X4.60, X4.70, X5.20, X5.30, X5.40, X5.50, X6.420, X6.430, X6.440, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, and X8.680.