Briggs & Stratton Vanguard 305447-0610-G1 16HP 479cc V-Twin Vertical Shaft Engine

1" Diameter, 1/4" Keyway Shaft

The Briggs & Stratton Vanguard 305447-0610-G1 is a 16HP, 479cc V-Twin vertical shaft engine built for heavy-duty commercial, industrial, and residential use. This updated model supersedes the 305447-3079, offering the same rugged dependability with refinements that improve efficiency and long-term durability.

Whether powering a zero-turn mower, golf cart, garden tractor, or industrial equipment, this engine provides steady, reliable output. With its compact size and professional-grade engineering, it is an excellent choice for repowering older equipment and extending its service life.

This engine is built around a 4-stroke OHV V-Twin design that generates 16 horsepower while reducing fuel consumption and emissions compared to conventional side-valve engines. A cast iron cylinder sleeve provides excellent wear protection, while the pressure lubrication system with an integrated oil filter minimizes friction and extends engine life. Its 48-ounce oil capacity ensures better lubrication during long operating hours.

For dependability, the electric start system guarantees quick ignition in all weather conditions. A forced-air cooling system maintains stable operating temperatures, while the high-efficiency debris management system helps keep the engine clean and running smoothly. A mechanical governor ensures consistent RPM control under varying loads, delivering smooth performance in tough working conditions.

The 305447-0610-G1 comes with a 1-inch diameter shaft featuring a 1/4-inch keyway and a 2-29/32” length, with a 3/8”-24 tapped crankshaft end, ensuring compatibility with a wide range of equipment. This makes it versatile across multiple industries, from landscaping to industrial power equipment.

Backed by a three-year consumer and commercial warranty, this engine gives you peace of mind that it will perform reliably for years to come. With proper maintenance—such as regular oil changes, air filter service, and spark plug replacement—the Vanguard 305447-0610-G1 is designed for long-lasting operation in even the most demanding environments.

At Carroll Stream Motor Company, we have been supplying premium Briggs & Stratton engines since 2005. Our Michigan-based team is here to help you with fitment questions, technical support, and ordering assistance. We provide fast, free shipping and competitive pricing, making it easy to keep your equipment running on the power it deserves. Order your Briggs & Stratton Vanguard 305447-0610-G1 today and experience the exceptional durability, reliability, and performance that professionals trust. For assistance, call us at 1-888-208-2088 and speak directly with one of our engine experts.