Troy-Bilt Snow Thrower TB-Vortex-3090-SD 420cc Engine TB-VORTEX3090XP-SDTB-Vortex-3090XP-SD 420cc Engine, 110 Volt Electric Start, 30 Width, Three Stage, Power Steering, Electric Chute Control, Troy-Bilt Snow Thrower. Product Condition: New Scratch/Dent – Item is brand new with cosmetic issues. This item will not include the retail or original packaging. These items are fully functional and have.