The Briggs Stratton 21R707 0079 F1 Vertical Engine is a brand-new 344cc Intek Series gasoline engine engineered for riding lawn mowers, zero-turn mowers, and lawn tractors requiring dependable power and long-term durability. Delivering up to 10.5 horsepower, this vertical shaft engine features both recoil and electric starting systems, a cast iron cylinder sleeve, heavy-duty flywheel, integrated fuel tank, fuel pump, and a 16-amp charging system. Designed to handle demanding mowing applications, it combines reliable performance with Briggs & Stratton's proven engineering and extensive replacement compatibility.

The Briggs & Stratton 31L777-3136-G5 Vertical Engine is a 500cc Professional Series single-cylinder gasoline engine engineered for lawn mowers and other compatible outdoor power equipment. Delivering 17.5 gross horsepower, this vertical shaft engine features full-pressure lubrication, electric start, a 9-amp charging system, and a cast iron cylinder sleeve for dependable performance, extended engine life, and reduced maintenance.

• 5 Years Guarantee
• Free 90 days return
• Installment options