The Husqvarna 574173003 Lawn Mower Blade Drive Belt helps deliver reliable power to the cutting blades for consistent mowing performance. This replacement blade drive belt is designed to transfer engine power through the pulley system, enabling the mower blades to rotate efficiently during operation. It works by maintaining proper tension and grip, supporting smooth power transmission... https://www.wholetoolbox.com/husqvarna-574173003-lawn-mower-blade-drive-belt/574173003.html