There is not a shaft kit available for this engine.
Kohler 18 HP Command Series OHV Engine — 18 HP, Model# CH18S
This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.
Click or Tap image to Zoom
- OHV engine with Oil Sentry
- Cast iron cylinder liner; aluminum block
- Oil filter
- Electric start w/12V solenoid shift starter
- Dual oil drain holes
See full description
Accessories We Recommend
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.
See All Horizontal Engines
See All Kohler Horizontal Engines
Currently Viewing This Product
Specifications
Specifications
Kohler 18 HP Command Series OHV Engine — 18 HP, Model# CH18S
Honda Engines, HONDA 270CC 6:1 ENGINE, Engine Displacement 270 cc, Engine Type GX Series OHV Commercial-duty, Shaft Diameter 1 in, Model# GX270UT2HA2
Honda Engines, V-TWIN HORIZONTAL 688CC RQAF, Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQAF
Honda Engines, V-TWIN HORIZONTAL 630CC RQAF1 Engine Displacement 688 cc, Engine Type GX Series OHV V-twin Commercial-duty, Shaft Diameter 1 in, Model# GX630RHXQAF1
Engine Displacement
Same
624 cc
270 cc
688 cc
688 cc
Engine Type
Same
Command Pro V-Twin OHV
GX Series OHV Commercial-duty
GX Series OHV V-twin Commercial-duty
GX Series OHV V-twin Commercial-duty
Shaft Diameter
Same
1 in
1 in
1 in
1 in
Shaft Length
Same
3 in
3.23 in
2.9 in
2.9 in
Start Type
Same
Electric
Recoil
Electric
Electric
Shaft Keyway
Same
0.25 in
-
0.25 in
0.25 in
Cylinders (qty.)
Same
2
1
2
2
Cylinder Bore
Same
Cast Iron
Cast Iron
Integrated
Integrated
Compression Ratio
Same
8.5:1
8.5:1
9.3:1
9.3:1
Oil Capacity
Same
2 qt
1.16 qt
2 qt
2 qt
Shaft Rotation (From PTO Shaft Side)
Same
Counterclockwise
Counter Clockwise
Counter Clockwise
Counter Clockwise
Ignition System
Same
Electronic
Electronic
Electonic, Digital CDI W/variable Ignition Timing
Electonic, Digital CDI W/variable Ignition Timing
Carburetor
Same
Smart choke
Float, External Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
2-barrel, Fuel Cut Solenoid, Inner Vent
Lubrication System
Same
Full pressure
Splash
Full Pressure
Full Pressure
Cooling System
Same
Air cooled
Air
Air
Air
Bore
Same
3.03 in
3 in
3.1 in
3.1 in
Stroke
Same
2.64 in
2.3 in
2.8 in
2.8 in
Air Cleaner Type
Same
Dual element
Dual Element
Dual Element
Dual Element
Throttle Control
Same
Remote
Manual
Remote
Manual
Fuel Filter
Same
In line
Yes
-
-
Charging System Amps
Same
15
-
20
17
Net Torque
Same
-
14.1 ft-lbs.
35.6 ft-lbs.
35.6 ft-lbs.
Crankshaft
Same
-
H-type
Q-type
Q-type
PTO Height
Same
-
5.25 in
5.25 in
5.25 in
Net Power Output
Same
-
8.5 HP
20.8 HP
20.8 HP
Fuel Tank Capacity
Same
-
5.6 qt
-
-
Governor System
Same
-
Centrifugal Mechanical
Mechanical
Mechanical
Choke Control
Same
-
Manual
Remote
Manual
Fuel Tank
Same
-
-
No
No
Low Oil Alert
Same
-
-
Yes
No
Muffler Included
Same
-
-
No
No