The McCormick 6515138M1 is a genuine Power Take-Off (PTO) shaft designed for a wide range of McCormick agricultural tractors. This essential component ensures reliable power transmission for various implements, fitting models across the MC, MTX, XTX, and X7 Series, including MC100, MC105, MC110, MC115, MC120, MC130, MC135, MC90, MC95, MTX110, MTX120, MTX125, MTX135, MTX140, MTX150, MTX155, MTX165, MTX175, MTX185, MTX200, XTX145, XTX165, XTX185, XTX200, XTX215, X7.440, X7.450, X7.460, X7.650, X7.660, X7.670, and X7.680.