The Husqvarna 587126108 Lawn Tractor Mandrel Assembly helps support and rotate the mower blade for consistent cutting performance. This replacement assembly connects the blade to the mower deck and transfers rotational power from the drive system to the blade during operation. A properly functioning mandrel supports stable blade rotation, smooth cutting, and dependable deck performanc... https://www.wholetoolbox.com/husqvarna-587126108-lawn-tractor-mandrel-assembly/587126108.html