V-Twin Riding Lawn Mower Engines | Vanguard® Power Solutions

A person sitting on a zero-turn riding lawn mower that’s cutting grass.

A person sitting on a zero-turn riding lawn mower that’s cutting grass.

Built with pride in the U.S. Ready to work anywhere.

Zero-Turn Lawn Mower Engines for Your Toughest Jobs

Experience the American ingenuity of U.S.-built Vanguard^® and Briggs & Stratton^® engines. Our V-Twin riding lawn mower engines deliver unmatched horsepower, performance and efficiency. Paired with your favorite zero-turn mower brand, these engines are designed to handle your toughest jobs and deliver the muscle you need.

Hand-assembled in Auburn, Alabama, Vanguard Mid-Block 810cc V-Twin engines feature superior balance, low vibration and reduced emissions. With advanced electronic fuel injection (EFI) technology for fuel efficiency and durability (available on select engine models), you’ll spend less time refueling and more time enjoying flawless cuts, job after job.

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Featured Commercial V-Twin Engines

Designed for those who mow daily.

Vanguard 26.0 Gross HP 810 cc V-Twin engine

Vanguard 26.0 Gross HP* 810cc V-Twin Engine

A commercial-grade riding lawn mower engine that delivers the power, performance and efficiency you need.

Vanguard 28.0 Gross HP EFI 810cc V-Twin engine

Vanguard 28.0 Gross HP* EFI 810cc V-Twin Engine

Includes Vanguard EFI for added power and fuel economy.

Featured Residential Professional-Grade V-Twin Engines

Ideal for large property owners.

Briggs & Stratton CXi Series V-Twin engine.

Briggs & Stratton CXi Series V-Twin Engines

Specially designed to endure extended use and extreme conditions. Cyclonic air filtering extends engine life.

Briggs & Stratton PXi Series V-Twin engine.

Briggs & Stratton PXi Series V-Twin Engines

Premium power and features to handle big jobs. Enhanced components for extreme durability.

Zero-Turn Lawn Mower Engine Resources

The Vanguard Mid-Block V-Twin Engine brochure, with a person driving a zero-turn mower on its front cover and the headline “Vanguard Mid-Block V-Twin Engine.”

Vanguard Mid-Block V-Twin Engine Brochure

Provides details and specifications for the Vanguard 26.0 gross HP* and 28.0 gross HP* Mid-Block V-Twin engines.

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The CXi Series V-Twin Engine brochure, with a CXi Series V-Twin engine on its front cover and the headline “The new CXi V-Twin. Commercial performance. Unmatched durability.”

Briggs & Stratton CXi V-Twin Engine Brochure

Provides details and specifications for the Briggs & Stratton family of CXi V-Twin engines.

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The PXi Series V-Twin Engine brochure, with a PXi Series V-Twin engine on its front cover and the headline “For homeowners who work like pros. Professional-grade V-Twins.”

Briggs & Stratton PXi V-Twin Engine Brochure

Provides details and specifications for the Briggs & Stratton family of PXi V-Twin engines.

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A clerk standing behind the counter at a small engine store hands a part to a customer.

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_{*All power levels are stated gross HP at 3,600 RPM per SAE J1940}