Briggs & Stratton 21R807-0072-G1 11.5 HP 344cc Vertical Shaft Engine

Briggs & Stratton 21R807-0072-G1 11.5 HP 344cc Vertical Shaft Engine

This genuine 344cc Briggs and Stratton single cylinder engine offers dependable power for your equipment needs. With a power rating of 11.5 horsepower, this engine features a premium Dual Clean air filtration system, rewind starter, and maintenance-free Magnetron electronic ignition. With a manufacturer limited warranty of 2 years consumer use / 1 year commercial use, Briggs and Stratton provides power that you can trust. This engine includes a Dura-Bore cast iron cylinder sleeve for extended life. This engine includes a fuel pump. 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:

Intek Series™ Riding Mower Engine; More durable. More efficient. More powerful. Mows the lawn and lasts long

• Engineered as a high-torque force multiplier for riding mowers, this 344cc engine delivers a superior mechanical handshake between power and durability. The Intek™ structural logic focuses on a high-efficiency 'intake' system and reinforced internal components, ensuring a laminar flow of energy even under heavy turf loads. By optimizing the combustion handshake, this engine provides a more powerful output and extended Long Life, allowing you to manage large acreage with a high-productivity flow that outlasts standard residential engines
  

Tool-less Air Cleaner Cover; Easy access for filter changes

• Engineered for an effortless mechanical handshake, this high-integrity air cleaner cover eliminates the need for external tools during routine maintenance. The 'Zero-Barrier' access logic allows for instantaneous 'intake' inspections and filter replacements, streamlining your service workflow. By ensuring a high-pressure seal without the complexity of hardware, this enclosure protects the 344cc displacement from harmful particulates, maintaining a laminar flow of clean air to the combustion chamber and significantly extending the Long Life of your Intek™ engine.
  

Overhead Valve (OHV) Engine Design; OHV engines run cooler and cleaner for better fuel economy and longer engine life

• This 344cc power plant features a high-performance OHV chassis engineered to optimize the 'intake' and exhaust handshake. By positioning the valves directly above the combustion chamber, this design facilitates a laminar flow of fuel and air, resulting in higher volumetric efficiency and smoother power delivery. The OHV architecture acts as a thermal force multiplier, ensuring the engine runs cooler and cleaner while delivering the Max. Pressure and torque required for riding mower applications. This optimized combustion flow translates to a Long Life, improved fuel economy, and a high-productivity energy output.
  

Dura-Bore cast iron cylinder sleeve for extended life

• Engineered for maximum wear resistance, this 344cc engine features a premium cast iron cylinder sleeve integrated into the aluminum alloy block. This 'Dura-Bore' architecture acts as a mechanical force multiplier, providing a high-density handshake between the piston rings and the cylinder wall. By enhancing thermal dissipation and maintaining a precise laminar flow of internal lubrication, this reinforced enclosure ensures a Zero-Fade performance profile. This structural upgrade is the key to an extended Long Life, allowing the engine to withstand the high-stress 'intake' of heavy-duty mowing without compromising the Max. Pressure required for professional results.
  

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 ensure a 'Zero-Fail' mechanical handshake with your equipment’s drive system, replacement engines must be cross-referenced with your original Briggs & Stratton Model, Type, and Trim Number. Because the 344cc Intek™ chassis features specific crankshaft dimensions, electrical charging outputs, and throttle linkages, we recommend a technical 'intake' consultation with us or the manufacturer. This precision verification ensures the 21R807-0072-G1 power plant integrates seamlessly into your existing laminar workflow, maintaining the exact 'Max. Pressure' and structural alignment required for your specific riding mower application
  

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

• This 344cc power plant is engineered with a high-precision combustion handshake that meets all stringent EPA environmental standards. By optimizing the fuel-air 'intake' through advanced 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 torque required for high-productivity riding mower applications. This optimized flow protects the Long Life of your engine while maintaining a lower environmental footprint.