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Briggs & Stratton EXi Series Engines

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Our EXi Series V-Twin riding mower engines are all about performance. The V-Twin design delivers more power, is naturally balanced for less vibration, and runs cooler and cleaner thanks to its full pressure lubrication system and advanced air filtering. It all adds up to less wear on components for longer life and reduced maintenance. Want more? Choose our ReadyStart® for Ride option to start your mower as easily as a car – just turn the key or push the button and go.

  • Advanced Debris Management System – Helps our engines run cleaner and longer by deflecting and ejecting grass and debris, providing a longer life.
  • Full Pressure Lubrication System – Continuously feeds oil through the premium oil filter and crank pin bearing for enhanced durability and longer engine life.
  • Optional no choke starting.

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Model Number
40N8

Gross Horsepower (ft-lbs)*
20

Engine Displacement (cc)
656

Number of Cylinders
V-Twin

Engine Configuration
Vertical Shaft

OHV Engine
true

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

Lubrication System
Full Pressure Lubrication

Oil Capacity (oz)
64

Oil Filter
Standard

Starter
Electric Start

Air Filter
Cartridge Air Cleaner with Advanced Debris Management

Muffler
N/A

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
44N6

Gross Horsepower (ft-lbs)*
22

Engine Displacement (cc)
724

Number of Cylinders
V-Twin

Engine Configuration
Vertical Shaft

OHV Engine
true

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

Lubrication System
Full Pressure Lubrication

Oil Capacity (oz)
64

Oil Filter
Standard

Starter
Electric Start

Air Filter
Cartridge Air Cleaner with Advanced Debris Management

Muffler
N/A

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.

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