The engine would have a 10" bolt circle.
Kohler Command PRO Confidant Twin Cylinder Vertical Engine - 21 HP, 725cc, 1in. x 3.16in. Shaft, Model# PA-ZT720-3027
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- Cast-iron cylinder bores provide protection from debris
- High-impact nylon shroud and valve cover protect against damage to internal components
- Chopper grass screen guard prevents grass and debris packing
- Heavy-duty air cleaner and stamped steel guard stand up to tough mowing conditions
- Pressure lubrication and cooler operation help extend engine life
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Item # 114592
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Specifications
Specifications
Kohler Command PRO Confidant Twin Cylinder Vertical Engine - 21 HP, 725cc, 1in. x 3.16in. Shaft, Model# PA-ZT720-3027
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Briggs & Stratton Vertical 163CC Engine, Model# 104M02-0196-F1
Kohler Command PRO V-Twin Cylinder OHV Vertical Engine - 25 HP, 747cc, 1.125in. x 3.35in. Shaft, Model# PA-CV742-3023
Engine Displacement
Same
725 cc
627 cc
163 cc
747 cc
Engine Type
Same
Vertical Gas
Vanguard V-twin
Vertical OHV Gas
Vertical Gas
Shaft Diameter
Same
1 in
1-1/8 in
-
1-1/8 in
Shaft Length
Same
3.16 in
-
-
3.35 in
Fuel Type
Same
Natural Gas
Gasoline
-
Gasoline
Start Type
Same
Recoil
Electric
Pull
Electric
Net Torque
Same
40.7 ft-lbs.
-
-
55.3 ft-lbs.
Crankshaft
Same
Hardened
Vertical
-
Hardened
Cylinders (qty.)
Same
2
2
-
2
Cylinder Bore
Same
Cast Iron
Cast Iron
-
Cast Iron
Net Power Output
Same
21 HP
23 HP
-
25 HP
Compression Ratio
Same
9.1:1
-
-
9.1:1
Fuel Tank Capacity
Same
2 qt
-
-
-
Oil Capacity
Same
2 qt
1.5 qt
-
2 qt
Low Oil Shutdown
Same
No
No
-
Yes
Low Oil Alert
Same
No
No
-
-
Max. RPM
Same
3,600
3,600
-
3,600
Shaft Rotation (From PTO Shaft Side)
Same
Counter Clockwise
Counter Clockwise
-
Counter Clockwise
Governor System
Same
Mechanical
Mechanical
-
Variable Speed
Carburetor
Same
Evap/carb
Float
-
Smart Choke
Lubrication System
Same
Pressure
Full Pressure
-
Full Pressure
Bearing Type
Same
Parent Material
Ball
-
Parent Material
Cooling System
Same
Air
Air
-
Air
Bore
Same
3.3 in
2.97 in
-
3.3 in
Stroke
Same
2.6 in
2.76 in
-
2.7 in
Air Cleaner Type
Same
Single Element
Single Element
-
Single Element
Choke Control
Same
Remote
-
-
Remote
Throttle Control
Same
Remote
Remote
-
Remote
Fuel Filter
Same
Yes
Yes
-
-
Charging System Amps
Same
15
16
-
15
Muffler Included
Same
No
No
-
No
Bolt Circle
Same
10 in
-
-
7.656 in
Mounting Base Length
Same
10 in
-
-
5.736 in
Mounting Base Width
Same
10 in
-
-
7.656 in
Product Weight
Same
92.0000 lb
93 lb
-
lb
Dimensions L x W x H (in.)
Same
18.8 x 17.5 x 17.0 in
-
-
20.5 x 16.2 x 19.9 in
Shaft Keyway
Same
-
0.25 in
-
3.827 in
Fuel Tank
Same
-
No
-
-
CARB Approved
Same
-
No
No
-
Ignition System
Same
-
Electronic
-
Electronic
Auto Compression Release
Same
-
Yes
-
-
PTO Height
Same
-
-
-
3.356 in