EXi Engine Series™
EXi Engine Series™
High performance and extended durability.
Our EXi Series™ riding mower engines are made with you in mind. Available with optional ReadyStart® electric starting technology, you can get moving quickly with the turn of a key or push of a button.
- Full Pressure Lubrication System - This offers a premium oil filter and oil is also being pushed into the crank pin bearing for more durability and longer life.
- Advanced Debris Managment System - Helps our engines run cleaner and longer by deflecting and ejecting grass and debris, providing a longer life.
- Optional: ReadyStart®, Electronic Fuel Injection (EFI)
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656 - 724cc
Displacement
Gasoline
Engine Fuel
Features
Specs
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Model Number
40R6
Engine Displacement (cc)
656
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
Yes
Length (in)
19.1
Width (in)
18.2
Height (in)
14.3
Weight (lbs)
84
Bore (in)
2.97
Stroke (in)
2.89
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Oil Capacity (oz)
64
Lubrication System
Full Pressure Lubrication
Oil Filter
Standard
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
N/A
Fuel Shutoff Valve
Optional
Certified Power Rating
Marketing Oil Capacity
64
Marketing Number of Cylinders
2
Marketing Gross Horsepower
16.0 - 24.0
Gross Horsepower
16
*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
Model Number
40R7
Engine Displacement (cc)
656
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
Yes
Length (in)
19.1
Width (in)
18.2
Height (in)
14.3
Weight (lbs)
84
Bore (in)
2.97
Stroke (in)
2.89
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Oil Capacity (oz)
64
Lubrication System
Full Pressure Lubrication
Oil Filter
Standard
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
N/A
Fuel Shutoff Valve
Optional
Certified Power Rating
Marketing Oil Capacity
64
Marketing Number of Cylinders
2
Marketing Gross Horsepower
16.0 - 24.0
Gross Horsepower
18
*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
Model Number
40R8
Engine Displacement (cc)
656
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
Yes
Length (in)
19.1
Width (in)
18.2
Height (in)
14.3
Weight (lbs)
84
Bore (in)
2.97
Stroke (in)
2.89
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Oil Capacity (oz)
64
Lubrication System
Full Pressure Lubrication
Oil Filter
Standard
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
N/A
Fuel Shutoff Valve
Optional
Certified Power Rating
Marketing Oil Capacity
64
Marketing Number of Cylinders
2
Marketing Gross Horsepower
16.0 - 24.0
Gross Horsepower
20
*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
Model Number
44R6
Engine Displacement (cc)
724
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
Yes
Length (in)
19.1
Width (in)
18.2
Height (in)
14.3
Weight (lbs)
84
Bore (in)
3.12
Stroke (in)
2.89
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Oil Capacity (oz)
64
Lubrication System
Full Pressure Lubrication
Oil Filter
Standard
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
N/A
Fuel Shutoff Valve
Optional
Certified Power Rating
Marketing Oil Capacity
64
Marketing Number of Cylinders
2
Marketing Gross Horsepower
16.0 - 24.0
Gross Horsepower
22
*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
Model Number
44R8
Engine Displacement (cc)
724
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
Yes
Length (in)
19.1
Width (in)
18.2
Height (in)
14.3
Weight (lbs)
84
Bore (in)
3.12
Stroke (in)
2.89
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Oil Capacity (oz)
64
Lubrication System
Full Pressure Lubrication
Oil Filter
Standard
Starter
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Muffler
N/A
Fuel Shutoff Valve
Optional
Certified Power Rating
Marketing Oil Capacity
64
Marketing Number of Cylinders
2
Marketing Gross Horsepower
16.0 - 24.0
Gross Horsepower
24
*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
Model Number
40R6
40R7
40R8
44R6
44R8
Engine Displacement (cc)
656
656
656
724
724
Number of Cylinders
V-Twin
V-Twin
V-Twin
V-Twin
V-Twin
Engine Configuration
Vertical Shaft
Vertical Shaft
Vertical Shaft
Vertical Shaft
Vertical Shaft
OHV Engine
Yes
Yes
Yes
Yes
Yes
Length (in)
19.1
19.1
19.1
19.1
19.1
Width (in)
18.2
18.2
18.2
18.2
18.2
Height (in)
14.3
14.3
14.3
14.3
14.3
Weight (lbs)
84
84
84
84
84
Bore (in)
2.97
2.97
2.97
3.12
3.12
Stroke (in)
2.89
2.89
2.89
2.89
2.89
Engine Fuel
Gasoline
Gasoline
Gasoline
Gasoline
Gasoline
Fuel Tank Capacity (gal)
N/A
N/A
N/A
N/A
N/A
Oil Capacity (oz)
64
64
64
64
64
Lubrication System
Full Pressure Lubrication
Full Pressure Lubrication
Full Pressure Lubrication
Full Pressure Lubrication
Full Pressure Lubrication
Oil Filter
Standard
Standard
Standard
Standard
Standard
Starter
Electric Start
Electric Start
Electric Start
Electric Start
Electric Start
Air Filter
Cartridge Air Cleaner with Advanced Debris Management
Cartridge Air Cleaner with Advanced Debris Management
Cartridge Air Cleaner with Advanced Debris Management
Cartridge Air Cleaner with Advanced Debris Management
Cartridge Air Cleaner with Advanced Debris Management
Muffler
N/A
N/A
N/A
N/A
N/A
Fuel Shutoff Valve
Optional
Optional
Optional
Optional
Optional
Certified Power Rating
Marketing Oil Capacity
64
64
64
64
64
Marketing Number of Cylinders
2
2
2
2
2
Marketing Gross Horsepower
16.0 - 24.0
16.0 - 24.0
16.0 - 24.0
16.0 - 24.0
16.0 - 24.0
Gross Horsepower
16
18
20
22
24
*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.
**All power levels are stated gross horsepower at 3600 rpm per SAE J1940 as rated by Briggs & Stratton.
Conquer Your Yard
At the end of the day, a job well done is its own reward. Our equipment is there to help make it happen. It's easy to master, durable and ready for a challenge. Just like you.
