Briggs & Stratton 40T877-0012-G1 Commercial Series 20 HP 656cc Vertical Shaft Engine

Briggs & Stratton 40T877-0012-G1 Commercial Series 20 HP 656cc Vertical Shaft Engine

The Briggs and Stratton Commercial Turf Series Engine is compact and lightweight, and has a heavy-duty recoil start mechanism that makes this motor fast and easy to start. This engine features a 5-stage integrated cyclonic air cleaner, delivering superior performance and durability. Utilizing Over Head Valve (OHV) technology in combination with a V-Twin design cylinder this engine delivers true commercial power in a well balanced engine design. Many parts look similar, so it’s crucial to ensure you’re choosing the right replacement for your original equipment or engine model. Not sure? Use our Parts Lookup Tool to view part diagrams and find the correct replacement.

Features: 

Cast Iron Sleeve Adds integrity and durability that withstand wear and abuse while providing improved oil control

• Engineered as a high-displacement force multiplier for zero-turn and premium riding mowers, this 656cc engine delivers a superior 20 HP mechanical handshake. The Commercial Series™ structural logic features a V-Twin configuration, specifically designed to provide a balanced laminar flow of power and high-torque density. By optimizing the internal combustion handshake and incorporating an Advanced Debris Management System, this engine maintains Max. Pressure performance in the most punishing, high-cycle environments. This 656cc chassis is the ultimate choice for operators requiring a Long Life investment and 'Zero-Fade' productivity across large-scale acreage
  

Integrated Cyclonic Air Cleaner Provides advanced protection against airborne debris entering the engine

• Engineered for maximum structural integrity, this 656cc V-Twin features a cyclonic 'intake' barrier that acts as a centrifugal force multiplier. The system utilizes a high-spin air flow logic to physically separate and eject heavy debris before it can ever reach the primary filter media. By maintaining a purified laminar flow of air to the combustion chamber, this advanced management system provides 'Zero-Fade' protection in the most punishing, dust-heavy environments. This ballistic defense against airborne particulates ensures a clean internal 'starting system' and significantly extends the Long Life of your Commercial Series power plant.
  

Mechanical Governor Controls the engine speed to deliver more usable power under heavy usage

• Engineered for maximum structural integrity, this 656cc V-Twin features a cyclonic 'intake' barrier that acts as a centrifugal force multiplier. The system utilizes a high-spin air flow logic to physically separate and eject heavy debris before it can ever reach the primary filter media. By maintaining a purified laminar flow of air to the combustion chamber, this advanced management system provides 'Zero-Fade' protection in the most punishing, dust-heavy environments. This ballistic defense against airborne particulates ensures a clean internal 'starting system' and significantly extends the Long Life of your Commercial Series power plant.
  

Replacement engines are very specific to your current model number. Please contact us or the manufacturer for the correct replacement for your original engine.

• To guarantee a 'Zero-Fail' mechanical handshake with your zero-turn or riding mower, replacement engines must be meticulously cross-referenced using your original Briggs & Stratton Model, Type, and Trim Number. Because the 656cc Commercial Series V-Twin features specific crankshaft dimensions, electrical charging systems, and fuel pump configurations, we recommend a technical 'intake' consultation with us or the manufacturer. This precision verification ensures the 40T877-0012-G1 power plant integrates perfectly into your existing laminar workflow, maintaining the exact 'Max. Pressure' and structural alignment required for your specific professional application
  

EPA compliant: Which means it meets all stringent environmental standards, ensuring reduced emissions and a cleaner running engine.

• This 656cc V-Twin power plant is engineered with a high-precision combustion handshake that exceeds all stringent EPA environmental standards. By optimizing the fuel-air 'intake' through advanced V-Twin valve timing and refined thermal management, this engine achieves a laminar exhaust output with significantly reduced emissions. This compliance ensures a cleaner-running 'starting system' that aligns with modern regulatory requirements without compromising the Max. Pressure and high-torque density required for professional-grade commercial applications. This optimized flow protects the Long Life of your engine while maintaining a lower environmental footprint on the job site.