The Efco 0022631 is an original equipment manufacturer (OEM) complete blade spindle designed for various Efco ride-on mower models. This essential component ensures the proper rotation of the mower blades, contributing to efficient cutting performance. It features a total height of 170 mm, a pulley diameter of 150 mm, an outer diameter of 160 mm, and an inner shaft diameter of 25.4 mm. Weighing approximately 1.5 kg, this spindle is also an equivalent replacement for several MTD part numbers, including 618-0138A, 618-0138, 918-0138A, 918-0138, 618-0142, and 918-0142.