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EX Series™ Engines
With more power and features, our EX Series riding mower engines give you the performance you need. The lubrication system extends engine life, and includes a standard oil filter and oil pump to push clean oil to critical components.Gross Horsepower (HP)*
10.5 - 19.0
Displacement (cc)
344 - 540
Oil Capacity (L)
1.4
Fuel Type
Gasoline
Features
Made in the USA
Made in the USA of US and global parts.
Advanced Debris Management System
Keeps the engine clean by deflecting and ejecting grass and debris for a longer engine life.
Anti-Vibration System - AVS®
Provides a smoother ride and more comfort.
Full Pressure Lube System
Reduces component wear for longer engine life.
Specifications
Selected Models:
| EX1050 | EX1150 | EX1350 | |
| Model Number | 21R7 | 21R8 | 31R5 |
| Gross Power HP (kW) @3'600 rpm | 10.5 | 11.5 | 13.5 |
| Engine Displacement (cc) | 344 | 344 | 500 |
| Cylinders | Cast Iron Sleeve | Cast Iron Sleeve | Cast Iron Sleeve |
| Engine Configuration | Single cylinder, 4-stroke, air-cooled, OHV (Overhead Valve) | Single cylinder, 4-stroke, air-cooled, OHV (Overhead Valve) | Single cylinder, 4-stroke, air-cooled, OHV (Overhead Valve) |
| Start Type | Electric Start, Recoil Optional | Electric Start, Recoil Optional | Electric Start |
| Engine Fuel | Gasoline | Gasoline | Gasoline |
| Length (mm) | 452 | 452 | 479 |
| Width (mm) | 393 | 393 | 393 |
| Height (mm) | 327 | 327 | 327 |
| Weight (kg) | 26.8 | 26.8 | 29.5 |
| Bore (mm) | 87.3 | 87.3 | 90.5 |
| Stroke (mm) | 57.50 | 57.50 | 77.80 |
| Oil Capcity (L) | 1.40 | 1.40 | 1.40 |
| Lubrication System | Partial Lubrication System | Partial Lubrication System | Partial Lubrication System |
| Oil FIlter | Standard | Standard | Standard |
| Air Filter | Cartridge Air Cleaner with Advanced Debris Management | Cartridge Air Cleaner with Advanced Debris Management | Cartridge Air Cleaner with Advanced Debris Management |
| Muffler | Optional | Optional | Optional |
| Fuel Shutoff Valve | Optional | Optional | Optional |
| Certified Power Rating | Download Power Curve | Download Power Curve | Download Power Curve |
| Fuel Tank Capacity (L) | 2.6 (optional) | 2.6 (optional) | 2.6 (optional) |
| Warranty | 2 Years | 2 Years | 2 Years |
| Limited Commercial Warranty | 90-Days | 90-Days | 1-Year |
| Limited Consumer Warranty | 2-Years | 2-Years | 2-Years |
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.
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Get the Support You Need
Lookup the parts and manuals you need to service your engine.