PXi Series Engines

PXi Series Engines

Professional-grade performance.

Our PXi Series V-Twin riding mower engines give you premium power and features to handle the big jobs. The enhanced components are extremely durable, and premium air, oil and fuel filters keep the engine running clean to extend engine life. Our optional starting technologies provide reliable, automotive-style starting in all weather conditions – from minus 20°F up to 120°F.

  • 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 crankshaft bearing for enhanced durability and longer engine life.
  • Optional no choke starting with ReadyStart® for Ride.

656 - 724cc

Displacement (cc)

Petrol

Fuel Type

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.

Qualified 67% Longer Engine Life*

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

Full Pressure Lube System

Reduces component wear for longer engine life.

V-Twin Engine

For more power, comfort and durability.

*All power levels are stated gross torque at 2600 rpm per SAE J1940 as rated by Briggs & Stratton.

Specifications

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Model Number
40S8
Engine Configuration
Vertical Shaft
Engine Displacement (cc)
656
Stroke (mm)
2.89
Fuel Tank Capacity (L)
N/A
Oil Capacity (L)
64
Weight (kg)
84
Length (mm)
19.1
Width (mm)
18.2
Height (mm)
14.3
Marketing Oil Capacity
64 - 67
Marketing Number of Cylinders
2
Marketing Gross Horsepower
20.0 - 25.0
Application Type
Riding Mower
Engine Brand
Briggs & Stratton
Muffler
N/A
Number of Cylinders
V-Twin
Oil Filter
Premium
Lubrication System
Full Pressure Lubrication
Certified Power Rating
Starter Type
Electric Start
Fuel Shutoff Valve
Optional
Gross Horsepower
20
OHV Engine
true
Air Filter
Dual Element Cartridge with Advanced Debris Management
Engine Fuel Type
Petrol
Cylinder Bore Size
2.97

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

Model Number
44S6
Engine Configuration
Vertical Shaft
Engine Displacement (cc)
724
Stroke (mm)
2.89
Fuel Tank Capacity (L)
N/A
Oil Capacity (L)
64
Weight (kg)
84
Length (mm)
19.1
Width (mm)
18.2
Height (mm)
14.3
Marketing Oil Capacity
64 - 67
Marketing Number of Cylinders
2
Marketing Gross Horsepower
20.0 - 25.0
Application Type
Riding Mower
Engine Brand
Briggs & Stratton
Muffler
N/A
Number of Cylinders
V-Twin
Oil Filter
Premium
Lubrication System
Full Pressure Lubrication
Certified Power Rating
Starter Type
Electric Start
Fuel Shutoff Valve
Optional
Gross Horsepower
22
OHV Engine
true
Air Filter
Dual Element Cartridge with Advanced Debris Management
Engine Fuel Type
Gasoline
Cylinder Bore Size
3.12

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

Model Number
44S8
Engine Configuration
Vertical Shaft
Engine Displacement (cc)
724
Stroke (mm)
2.89
Fuel Tank Capacity (L)
N/A
Oil Capacity (L)
64
Weight (kg)
84
Length (mm)
19.1
Width (mm)
18.2
Height (mm)
14.3
Marketing Oil Capacity
64 - 67
Marketing Number of Cylinders
2
Marketing Gross Horsepower
20.0 - 25.0
Application Type
Riding Mower
Engine Brand
Briggs & Stratton
Muffler
N/A
Number of Cylinders
V-Twin
Oil Filter
Premium
Lubrication System
Full Pressure Lubrication
Certified Power Rating
Starter Type
Electric Start
Fuel Shutoff Valve
Optional
Gross Horsepower
24
OHV Engine
true
Air Filter
Dual Element Cartridge with Advanced Debris Management
Engine Fuel Type
Gasoline
Cylinder Bore Size
3.12

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

Model Number
44S9
Engine Configuration
Vertical Shaft
Engine Displacement (cc)
724
Stroke (mm)
2.89
Fuel Tank Capacity (L)
N/A
Oil Capacity (L)
64
Weight (kg)
84
Length (mm)
19.1
Width (mm)
18.2
Height (mm)
14.3
Marketing Oil Capacity
64 - 67
Marketing Number of Cylinders
2
Marketing Gross Horsepower
20.0 - 25.0
Application Type
Riding Mower
Engine Brand
Briggs & Stratton
Muffler
N/A
Number of Cylinders
V-Twin
Oil Filter
Premium
Lubrication System
Full Pressure Lubrication
Certified Power Rating
Starter Type
Electric Start
Fuel Shutoff Valve
Optional
Gross Horsepower
25
OHV Engine
true
Air Filter
Dual Element Cartridge with Advanced Debris Management
Engine Fuel Type
Petrol
Cylinder Bore Size
3.12

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