The Craftsman 918-06978 Lawn Tractor Mandrel Assembly supports the rotation of the mower blade on compatible lawn tractors, helping maintain effective cutting performance. This assembly serves as a mounting point for the blade and connects with the mower deck’s drive system to allow the blade to rotate during operation. Designed for compatible Craftsman equipment, it can be used as a ... https://www.wholetoolbox.com/craftsman-918-06978-lawn-tractor-mandrel-assembly/918-06978.html