Home Depot offers the Ariens 42 In. Deck 17.5 HP Briggs & Stratton 6 Speed Riding Mower Model A175BG42 for $999. Use code BATH100N8 to get $100 off and lower it to $899, the lowest price we could find for a new condition 6-speed mower by $100. Plus, Home Depot delivers this item for free. Even better, this mower comes with free replacement blades for life. Sales tax is charged in most states.