Briggs & Stratton 40T877-0012-G1

20HP 656cc Engine

The Briggs & Stratton 40T877-0012-G1 Commercial Turf Professional Series 20HP engine is a high-performance powerplant built for heavy-duty reliability in demanding commercial and industrial environments. Designed with both strength and adaptability in mind, this engine is ideal for zero-turn mowers, large walk-behind mowers, and a variety of industrial equipment where dependable horsepower is a must.

Powered by a durable four-stroke OHV V-Twin engine with a displacement of 656cc, the 40T877-0012-G1 delivers a robust 20 horsepower while maintaining smooth operation and efficient fuel consumption. The compact yet rugged design allows for easy integration into tight spaces without sacrificing strength or performance.

Starting is made effortless thanks to its reliable electric start system, ensuring quick ignition even in challenging conditions. Operating on unleaded gasoline with a recommended octane rating of 86 or higher, this engine offers clean, consistent power for long days in the field.

Built to withstand the toughest workloads, the 40T877-0012-G1 features a full pressure lubrication system with an integrated oil cooler to keep the engine running at optimal temperatures and extend its service life. The cyclonic air filtration system provides superior protection against dust and debris, while the mechanical governor maintains consistent speed under varying loads—ideal for professional turf care and equipment applications.

This model comes with a 9 AMP charging system for powering accessories and electronics. It’s equipped with a 1-inch diameter keyed straight shaft (1/4-inch keyway) for easy, secure attachment to your machinery. Measuring 17.5 x 19 x 20 inches and weighing just 83 pounds, it offers versatility for multiple configurations without adding unnecessary bulk.

For added peace of mind, Briggs & Stratton backs this engine with a 2-year limited consumer warranty and a 2-year limited commercial warranty. User-friendly features such as a low vacuum purge port and integrated dipstick make routine maintenance simple and efficient.

Whether you’re replacing an aging power unit or upgrading for improved performance, the Briggs & Stratton 40T877-0012-G1 delivers the reliability, power, and durability professionals demand. Order today from Carroll Stream Motor Company to enjoy competitive pricing, expert service, and fast, free shipping.