Briggs & Stratton 44T977‑0009‑G1- a 25 HP (724 cc) vertical OHV V‑twin commercial turf engine with a 1.00 in. × 3‑5/32 in. crankshaft, cyclonic air cleaner, full‑pressure lubrication, Magnetron® Electronic Ignition for maintenance‑free, easy starting, and remote throttle control.
Briggs & Stratton Vertical OHV V-Twin Engine, 25HP, 724cc, 1in. x 3 5/32in. Shaft, Model# 44T977-0009-G1
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$1029.27
- Model# 44T977-0009-G1; Genuine 724cc Briggs & Stratton 2-cylinder engine with 25 HP rating and 1in. dia. x 3 5/32in. L vertical shaft
- OHV technology optimized performance that delivers longer engine life and improved fuel economy
- Magnetron® Electronic Ignition System ensures maintenance-free, easy starting
- Dura-Bore™ cast iron cylinder sleeve adds integrity and durability that withstands wear and abuse while providing improved oil control
- Designed for use with riding lawn mowers
See full description
Price for all three:
$1077.25
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Specifications
Specifications
Briggs & Stratton Vertical OHV V-Twin Engine, 25HP, 724cc, 1in. x 3 5/32in. Shaft, Model# 44T977-0009-G1
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Briggs & Stratton Vertical OHV Engine, 724cc, 1 1/8in. x 4 19/64in. Shaft, Model# 44S977-0033-G1
Briggs & Stratton Intek Vertical OHV Engine, 344cc, 1in. x 3 5/32in. Shaft, Model# 21R807-0072-G1
Engine Displacement
Same
724 cc
389 cc
724 cc
344 cc
Engine Type
Same
V-twin OHV
GXV Series OHV Commercial-duty
Professional Series OHV
Intek OHV
Shaft Diameter
Same
1 in
1 in
1-1/8 in
1 in
Shaft Length
Same
3.15 in
3.11 in
4.29 in
3.15 in
Fuel Type
Same
Gasoline
Gasoline
Gasoline
Gasoline
Start Type
Same
Electric
Electric and Recoil
Electric
Electric and Recoil
Shaft Keyway
Same
0.25 in
0.25 in
0.25 in
0.25 in
Crankshaft
Same
Vertical
-
Vertical
1 x 3.15 In
Cylinders (qty.)
Same
2
1
2
1
Cylinder Bore
Same
Cast Iron
Cast Iron
Cast Iron
Cast Iron
Net Power Output
Same
25 HP
10.2 HP
25 HP
11.5 HP
Fuel Tank
Same
No
Yes
No
No
Oil Capacity
Same
2 qt
1.2 qt
2 qt
1.5 qt
Low Oil Shutdown
Same
No
-
No
No
Low Oil Alert
Same
No
No
No
No
Max. RPM
Same
3,300
3,600
3,400
3,300
CARB Approved
Same
No
-
No
No
Shaft Rotation (From PTO Shaft Side)
Same
Counter Clockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Governor System
Same
Mechanical
Centrifugal Mechanical
Mechanical
Mechanical
Ignition System
Same
Electronic
Electronic
Electronic
Electronic
Carburetor
Same
Yes
Float
Yes
Yes
Lubrication System
Same
Full Pressure
Pressure/splash
Full Pressure
Splash
Bearing Type
Same
Ball
-
Ball
Plain
Auto Compression Release
Same
Yes
-
Yes
Yes
Cooling System
Same
Air
Air
Air
Air
Bore
Same
3.12 in
3.2 in
3.12 in
3.44 in
Stroke
Same
2.89 in
2.5 in
2.89 in
2.26 in
Air Cleaner Type
Same
Single Element
Dual Element
Single Element
Single Element
Choke Control
Same
Automatic
Remote
Automatic
Automatic
Throttle Control
Same
Remote
Remote
Remote
Remote
Fuel Filter
Same
Yes
Yes
Yes
Yes
Charging System Amps
Same
16
3
16
3
Muffler Included
Same
No
Yes
No
Yes
Product Weight
Same
91.0000 lb
lb
87.0000 lb
72.0000 lb
Dimensions L x W x H (in.)
Same
19.12 x 18.0 x 15.5 in
17.0 x 15.0 x 15.87 in
16.0 x 19.0 x 18.0 in
16.5 x 16.0 x 13.0 in
Net Torque
Same
-
17.8 ft-lbs.
-
-
Compression Ratio
Same
-
7.7:1
-
-
Fuel Tank Capacity
Same
-
2.2 qt
-
-
Bolt Circle
Same
-
10 in
-
-
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