Briggs & Stratton CXi Series Engines

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These V-Twin engines are specially designed for zero turn mowers and other high-debris applications to endure extended use in extreme conditions. Cyclonic air filtering keeps dirt out and extends engine life. The V-Twin design delivers more power, is naturally balanced for less vibration, runs cooler and cleaner.

  • 5-Step Cyclonic Debris Management extends engine life.
  • Strengthened cylinder, sump and rod for durability.
  • Premium oil and fuel filters protect the engine.
  • Available Electronic Fuel Injection (EFI) and Electronic Throttle Control (ETC) on select engines.
  • Optional Oil Xtend with 250 hour maintenance.
  • Made in the USA of US and global parts.

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Specs

Model Number
40T8
Gross Horsepower (ft-lbs)*
20
Engine Displacement (cc)
656
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
19.3
Width (in)
17.6
Height (in)
15.7
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
Premium
Starter
Electronic Start
Air Filter
Integrated Cyclonic Air Cleaner - Patented 5 Step
Muffler
N/A
Certified Power Rating
Download Power Curve
Warranty Consumer Product Info
3 year consumer warranty
Warranty Commercial Product Info
3 year commercial warranty

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

Model Number
44T7
Gross Horsepower (ft-lbs)*
23
Engine Displacement (cc)
724
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
19.3
Width (in)
17.6
Height (in)
15.7
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)
67
Oil Filter
Premium
Starter
Electronic Start
Air Filter
Integrated Cyclonic Air Cleaner - Patented 5 Step
Muffler
N/A
Certified Power Rating
Download Power Curve
Warranty Consumer Product Info
3 year consumer warranty
Warranty Commercial Product Info
3 year commercial warranty

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

Model Number
44T9
Gross Horsepower (ft-lbs)*
25
Engine Displacement (cc)
724
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
19.3
Width (in)
17.6
Height (in)
15.7
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)
67
Oil Filter
Premium
Starter
Electronic Start
Air Filter
Integrated Cyclonic Air Cleaner - Patented 5 Step
Muffler
N/A
Certified Power Rating
Download Power Curve
Warranty Consumer Product Info
3 year consumer warranty
Warranty Commercial Product Info
3 year commercial warranty

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

Model Number
44X9
Gross Horsepower (ft-lbs)*
25
Engine Displacement (cc)
724
Engine Configuration
Vertical
OHV Engine
true
Length (in)
19.3
Width (in)
17.6
Height (in)
15.7
Weight (lbs)
86.5
Bore (in)
3.12
Stroke (in)
2.89
Engine Fuel
Gasoline
Lubrication System
Full Pressure Lubrication
Oil Capacity (oz)
67
Oil Filter
Premium
Starter
EFI/ETC
Air Filter
Integral Cyclonic Air Filter
Muffler
N/A
Compression Ratio
8:5:1
Ignition System
Computer Controlled Electronic Ignition
Warranty Commercial Product Info
3 Year Commercial Limited

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

Model Number
49T8
Gross Horsepower (ft-lbs)*
27
Engine Displacement (cc)
810
Number of Cylinders
V-Twin
Engine Configuration
Vertical Shaft
OHV Engine
true
Length (in)
19.3
Width (in)
17.6
Height (in)
15.7
Weight (lbs)
87
Bore (in)
3.30
Stroke (in)
2.89
Engine Fuel
Gasoline
Fuel Tank Capacity (gal)
N/A
Lubrication System
Full Pressure Lubrication
Oil Capacity (oz)
67
Oil Filter
Premium
Starter
Electric Start
Air Filter
Integrated Cyclonic Air Cleaner - Patented 5 Step
Muffler
N/A
Certified Power Rating
Download Power Curve
Warranty Consumer Product Info
3 year consumer warranty
Warranty Commercial Product Info
3 year commercial warranty

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

Model Number
49X9
Gross Horsepower (ft-lbs)*
27
Engine Displacement (cc)
810
Engine Configuration
Vertical
OHV Engine
true
Length (in)
19.3
Width (in)
17.6
Height (in)
15.7
Weight (lbs)
89
Bore (in)
3.3
Stroke (in)
2.89
Engine Fuel
Gasoline
Lubrication System
Full Pressure Lubrication
Oil Capacity (oz)
67
Oil Filter
Premium
Starter
EFI/ETC
Air Filter
Integral Cyclonic Air Filter
Muffler
N/A
Compression Ratio
8:5:1
Ignition System
Computer Controlled Electronic Ignition
Warranty Commercial Product Info
3 Year Commercial Limited

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