Briggs & Stratton Push Mower Engines
Push forward.
Whether you’re buying a new mower or upgrading your mower, you want the engine that always starts easily – with the reliability and power to cut through tall, thick grass every time. A lighter, quieter engine that drives your mower like a dream. Our groundbreaking technology brings you
Commercial Push Mower Engines


Professional Series™
Professional Series™ Engines combine professional-grade features, power and performance and ease of use.
- ReadyStart® Engine Starting System: No prime, no choke, no worries. Just pull for power.
- Made in the USA: Made in the USA of US and global parts.
- Our Starting Promise™: Starts in 2 attempts – or we’ll fix it for free.*
- Qualified 60% Longer Engine Life*: *Available only on 8.50, 10.00 models when compared to the expected life of a standard Briggs & Stratton® E Series engine.
- Dual-Sealing Commercial-Grade Air Management System: Reduces harmful yard debris.
Residential Push Mower Engines


E Series™
These engines are compact, lightweight and simple to operate – with reduced vibration, quieter operation and enhanced handling.
- Made in the USA: Made in the USA of US and global parts.
- Prime ‘n Pull™ E-Z Starting System: Push the primer bulb three times and go.
- E Series Muffler Options: Lo-Tone™ Engine Muffler available on 450e, 500e, 550e Series models for a quieter cut and Super Lo-Tone™ Engine Muffler available on 500e and 550e Series models for an even quieter lawn mowing experience.
- E Series Air Cleaner Options: Oil-Foam Air Cleaner available on 450e, 500e, 550e Series models to help keep the engine clean and Dual-Sealing Paper Element available on 500e and 550e Series models to protect the engine from dirt and debris.
- Tool-less Air Cleaner Cover: Easy access for filter changes.


EX Series™
You’ll love the smooth handling of the lightweight, yet powerful EX Series engines with best-in-class torque-to-weight ratio, reduced vibration and quieter operation.
- Made in the USA: Made in the USA of US and global parts.
- Our Starting Promise™: Starts in 2 attempts – or we’ll fix it for free.*
- ReadyStart® Engine Starting System: No prime, no choke, no worries. Just pull for power.
- Just Check & Add™: Cut the hassles from gas engine maintenance with this innovative system that never requires an oil change.
- Super Lo-Tone™ Engine Muffler: A quieter lawn mowing experience.
- Tool-less Air Cleaner Cover: Easy access for filter changes.




EXi Engine Series™
Redesigned from the ground up, EXi Series Engines are more powerful and durable while lightest in class and easy to maneuver.
- ReadyStart® Engine Starting System: No prime, no choke, no worries. Just pull for power.
- Easy Maneuverability: The lightest engine in its class makes it easy to maneuver.
- Our Starting Promise™: Starts in 2 attempts – or we’ll fix it for free.*
- Angled Fuel Neck 2X the Size: Make filling up less of a mess.
- Just Check & Add™: Cut the hassles from gas engine maintenance with this innovative system that never requires an oil change.




InStart® Series Engine
InStart® lithium-ion electric starting engine combines the power of gas and the starting reliability of lithium-ion battery technology.
- Our Starting Promise™: Starts in 2 attempts – or we’ll fix it for free.*
- Just Check & Add™: Cut the hassles from gas engine maintenance with this innovative system that never requires an oil change.




82Li Series™
Smart lithium-ion battery technology provides you with reliable performance, easy starting and long run time for a more efficient and enjoyable mowing experience.
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Reliable Performance
Superior battery performance – powerful, long lasting 82V lithium-ion technology.
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Lithium-Ion Battery Technology
Light weight, easy tool-less removal, convenient, quick recharge with portable battery dock and long battery life.
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Load Sense Technology
Sense grass thickness and optimizes power for best quality of cut.
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Easy Starting
Push button electric starting.
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Long Run Time
Delivers up to 45 minutes of run time.


Mow N' Stow® Series
This patented engine design enables a lawn mower to be stored upright without any fuel or oil leaks. Takes care of big lawn mower jobs and fits in small spaces.
- ReadyStart® Engine Starting System: No prime, no choke, no worries. Just pull for power.
- Our Starting Promise™: Starts in 2 attempts – or we’ll fix it for free.*
- Just Check & Add™: Cut the hassles from gas engine maintenance with this innovative system that never requires an oil change.
- Tool-less Access: Easier and quicker access for regular maintenance.
- Easy Maneuverability: The lightest engine in its class makes it easy to maneuver.
- Reduced Footprint: Stores upright to reduce your footprint by 70%. *Space saving are in relations to the space consumed by a Toro 22″ walk power mower that is stored with the handle in the standard operating position.


Quiet Power Technology® Series
This engine is up to 60% quieter† so you can hear what is going on around you and take care of yard work earlier in the day or later in the evening.
- ReadyStart® Starting System: No prime, no choke, no worries. Just pull for power.
- Enhanced Muffler Design: Available only on QPT® Featuring Just Check & Add™.
- Made in the USA: Made in the USA of US and global parts.
- Our Starting Promise™: Starts in 2 attempts – or we’ll fix it for free.*
- Quiet Power Technology® Audio Comparison: Up to 60% quieter* than competitor models.*noise reduction will vary based on engine and application model
- Just Check & Add™: Cut the hassles from gas engine maintenance with this innovative system that never requires an oil change.