This Stens Lawn Mower Spindle Assembly is engineered with precision to maximize lawn mower power while enhancing the efficiency of the pulley system performance. Stens spindle assemblies rotate blades with a consistent and smooth motion for a perfectly even cut. Solidly build to handle the rigors of lawn care, this lawn mower spindle assembly resists damage from hazards commonly encountered outdoors. The Stens replacement spindle assembly has improved resistance to damage and keeps working at optimal performance standards over a longer service life. The spindle assembly comes completely built and ready for installation, which saves the labor of refurbishing an older one.