The Landini 1425634M91 knob is a genuine replacement part designed for a wide range of Landini and Massey Ferguson tractors. This essential component ensures proper control and operation within the cabin. With a diameter of 40mm and a height of 25mm, it is built to OEM specifications for reliable fit and function. It also cross-references with Massey Ferguson part numbers 4270966M1, 4270966M91, 1425634M92, 1425634M93, and 1425634M94.