The McCormick 6616901A1 is a genuine OEM oil pressure sensor designed for a wide range of McCormick X-series agricultural tractors. This essential component ensures accurate monitoring of engine oil pressure, contributing to optimal engine performance and longevity. It is compatible with X4, X5, X6, X7, X8, X4M, X5M, X6M, X7M, X8M, X4.35, X4.40, X4.45, X4.50, X5.35, X5.40, X5.45, X5.50, X6.45, X6.50, X6.60, X6.70, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, X7.680, X8.660, X8.670, X8.680 tractor models.