EX Series Engines
Power and performance made easy.
With more power levels and two Briggs & Stratton innovations, our EX Series push mower engines are both easier to start and easier to maintain. There’s no need to prime or choke; just pull the rope or turn the key to get started. Special engineering allows these engines to run their full life without ever needing an oil change. No hassle, no mess. Just easy.
- No oil changes needed – just add oil as needed and go with Just Check & Add™.
- Easy, one-step starting with ReadyStart® .
- Save space**. Store your mower upright with Mow N’ Stow® (optional on the EX550 / 140cc engine)
- Made in the USA of US and global parts.
Gross Torque (ft-lbs)
5.5 - 6.25
Displacement
140 - 150cc
Engine Fuel
Gas
Starter
ReadyStart®
Features
Made in the USA
Made in the USA of US and global parts.
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Super Lo-Tone™ Engine Muffler
A quieter lawn mowing experience.
Tool-less Air Cleaner Cover
Easy access for filter changes.
Specifications
| EX550 | EX625 | |
| Engine Series | EX Series | EX Series |
| Torque | 5.5 | 6.25 |
| Engine Displacement (cc) | 140.0 | 150.0 |
| Number of Cylinders | Single | Single |
| Engine Configuration | Vertical Shaft | Vertical Shaft |
| Start Type | ReadyStart® Starting System | ReadyStart® Starting System |
| Engine Fuel | Gasoline | Gasoline |
| Length (in) | 13.8 | 13.8 |
| Width (in) | 12.2 | 12.2 |
| Height (in) | 9.6 | 9.6 |
| Weight (lbs) | 17.0 | 17.0 |
| Bore (in) | 2.5 | 2.58 |
| Stroke (in) | 1.75 | 1.75 |
| Oil Capacity (oz) | 15 | 15 |
| Lubrication System | Dura-Lube Splash Lubrication | Dura-Lube Splash Lubrication |
| Oil Filter | N/A | N/A |
| Air Filter | Dual-Sealing Paper | Dual-Sealing Paper |
| Muffler | Super Lo-Tone™ | Super Lo-Tone™ |
| Fuel Shutoff Valve | N/A | N/A |
| Certified Power Rating | Download Power Curve | |
| Fuel Tank Capacity (gal) | 0.2 | 0.2 |
| Warranty | 2 Years | 2 Years |
**Space savings are in relations to the space consumed by a traditional walk mower that is stored with the handle in the standard operating position.
Support
Manuals
Download the operator's manual or illustrated parts list for your Briggs & Stratton engine or equipment by following our step-by-step process.
Find Model Number
Locate and confirm your model number to search for your operator's manual or illustrated parts list. Not sure where to look or what to look for? Use our Model Number Help guide to find right number for your search.
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Get the Support You Need
Lookup the parts and manuals you need to service your engine.
Shop Repair & Maintenance Parts
Find genuine Briggs & Stratton repair and/or maintenance parts for your engine or outdoor power equipment to ensure future performance.