This genuine Gutbrod 9180609D mower spindle assembly is an essential component for the efficient operation of your ride-on mower's cutting deck. Designed for durability and precise fit, it ensures smooth blade rotation and optimal cutting performance. Measuring 170mm in height, this spindle features a 159mm outer diameter pulley with a 17mm star-shaped inner diameter, and a 22.2mm star-shaped blade mounting diameter. It is compatible with various Gutbrod, MTD, Yard-Man, and Cub Cadet lawn tractor models, including GLX, 13/92, AE 5135, and CC 1018 series.