Briggs & Stratton E Series Engines

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Stock status: Call Store for Availability

Ideal for smaller acreage lawns, our E Series riding mower engines are powerful, yet lightweight. Their performance-enhancing features deliver more than you’d expect, at a great value.

  • Advanced Debris Management – Helps our engines run cleaner and longer by deflecting and ejecting grass and debris, providing a longer life.
  • Anti-Vibration System – Counterbalanced internal components give you a smoother ride and save wear and tear on your engine, your equipment – and you.
  • Splash Lubrication System – As the engine is running, a spinning gear with paddles slings oil on critical components for vital lubrication and reduced wear.
  • Made in the USA of US and global parts.


Specs

Model Number
21R7
Gross Horsepower (ft-lbs)*
10.5
Engine Displacement (cc)
344
Number of Cylinders
Single
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
17.8
Width (in)
15.5
Height (in)
12.9
Weight (lbs)
66
Bore (in)
3.44
Stroke (in)
2.26
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
0.7 (optional)
Lubrication System
Dura-Lube Splash Lubrication
Oil Capacity (oz)
48
Oil Filter
N/A
Starter
Electric Start, Recoil Optional
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
Optional
Certified Power Rating
Download Power Curve
Fuel Shutoff Valve
Optional

* All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

Model Number
21R8
Gross Horsepower (ft-lbs)*
11.5
Engine Displacement (cc)
344
Number of Cylinders
Single
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
17.8
Width (in)
15.5
Height (in)
12.9
Weight (lbs)
66
Bore (in)
3.44
Stroke (in)
2.26
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
0.7 (optional)
Lubrication System
Dura-Lube Splash Lubrication
Oil Capacity (oz)
48
Oil Filter
N/A
Starter
Electric Start, Recoil Optional
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
Optional
Certified Power Rating
Download Power Curve
Fuel Shutoff Valve
Optional

* All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

Model Number
31R5
Gross Horsepower (ft-lbs)*
13.5
Engine Displacement (cc)
500
Number of Cylinders
Single
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
18.9
Width (in)
15.5
Height (in)
12.9
Weight (lbs)
77
Bore (in)
3.56
Stroke (in)
3.06
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Lubrication System
Dura-Lube Splash Lubrication
Oil Capacity (oz)
48
Oil Filter
N/A
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
Optional
Certified Power Rating
Download Power Curve
Fuel Shutoff Valve
Optional

* All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

Model Number
31R7
Gross Horsepower (ft-lbs)*
15.5
Engine Displacement (cc)
500
Number of Cylinders
Single
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
18.9
Width (in)
15.5
Height (in)
12.9
Weight (lbs)
77
Bore (in)
3.56
Stroke (in)
3.06
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Lubrication System
Dura-Lube Splash Lubrication
Oil Capacity (oz)
48
Oil Filter
N/A
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
Optional
Certified Power Rating
Download Power Curve
Fuel Shutoff Valve
Optional

* All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.

Model Number
31R9
Gross Horsepower (ft-lbs)*
17.5
Engine Displacement (cc)
500
Number of Cylinders
Single
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
18.9
Width (in)
15.5
Height (in)
12.9
Weight (lbs)
77
Bore (in)
3.56
Stroke (in)
3.06
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Lubrication System
Dura-Lube Splash Lubrication
Oil Capacity (oz)
48
Oil Filter
N/A
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
Optional
Certified Power Rating
Download Power Curve
Fuel Shutoff Valve
Optional

* All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.