Professional Series™ (V-Twin)

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Professional Series™ (V-Twin)

Power and Performance

Commercial grade power, easy starting and reliable performance time after time and year after year.

16 - 27

Gross HP

656 - 810cc

Displacement

2

No. of Cylinders

64 - 67

Oil Capacity (oz)

Features

Qualified 40% Longer Engine Life*

When compared to expected life standards of a Briggs & Stratton Intek™.

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.

Electronic Fuel Management

Starts as consistently as your car.

Full Pressure Lube System

Reduces component wear for longer engine life.

V-Twin Engine

For more power, comfort and durability.

Specs

Model Number

40S7

HP (gross) **

16.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric Start

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

40S7

HP (gross) **

18.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric Start

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

40S8

HP (gross) **

20.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric Start

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

44S6

HP (gross) **

22.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric Start

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

44S7

HP (gross) **

23.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

44S8

HP (gross) **

24.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric Start

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

44S9

HP (gross) **

25.0

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)

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)

64.00

Oil Filter

Premium

Starter

Electric Start

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

Model Number

49S7

HP (gross) **

26.00

Engine Displacement (cc)

810

Number of Cylinders

V-Twin

Engine Configuration

Vertical Shaft

OHV Engine

Yes

Length (in)

19.1

Width (in)

18.7

Height (in)

14.3

Weight (lbs)

Bore (in)

3.3

Stroke (in)

2.89

Engine Fuel

Gasoline

Fuel Tank Capacity (gal)

N/A

Lubrication System

Full Pressure Lubrication

Oil Capacity (oz)

67.00

Oil Filter

Premium

Starter

ReadyStart® Starting System,EFM/AutoStart

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

Certified Power Rating

Download Power Curve

Model Number

49S8

HP (gross) **

27.00

Engine Displacement (cc)

810

Number of Cylinders

V-Twin

Engine Configuration

Vertical Shaft

OHV Engine

Yes

Length (in)

19.1

Width (in)

18.7

Height (in)

14.3

Weight (lbs)

Bore (in)

3.3

Stroke (in)

2.89

Engine Fuel

Gasoline

Fuel Tank Capacity (gal)

N/A

Lubrication System

Full Pressure Lubrication

Oil Capacity (oz)

67.00

Oil Filter

Premium

Starter

ReadyStart® Starting System,EFM/AutoStart

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

Certified Power Rating

Download Power Curve

*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

40S7

40S8

44S6

44S7

44S8

44S9

49S7

49S8

HP (gross) **

16.0

18.0

20.0

22.0

23.0

24.0

25.0

26.00

27.00

Engine Displacement (cc)

656

724

810

Number of Cylinders

V-Twin

Engine Configuration

Vertical Shaft

OHV Engine

Yes

Length (in)

19.1

Width (in)

18.2

18.7

Height (in)

14.3

Weight (lbs)

Bore (in)

2.97

3.12

3.3

Stroke (in)

2.89

Engine Fuel

Gasoline

Fuel Tank Capacity (gal)

N/A

Lubrication System

Full Pressure Lubrication

Oil Capacity (oz)

64.00

67.00

Oil Filter

Premium

Starter

Electric Start

Electric

Electric Start

ReadyStart® Starting System,EFM/AutoStart

Air Filter

Dual Element Cartridge with Advanced Debris Management

Muffler

N/A

Certified Power Rating

Download Power Curve

*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.

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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FAQs

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Maintenance How-To Articles

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Q&A

Tackle 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.