Kohler Engines. Relentless Power. Legendary Performance.

Command PRO Gaseous Fuels



Fuel Type
19.5 Horizontal V-Twin Air Natural Gas Current

Professional Grade Design.

Kohler provides great alternative fuel solutions for your business with this line of carbureted propane and natural gas engines. Say goodbye to winterization of your fuel system and bad fuel issues. Plus with the low prices of natural gas and propane, these engines are sure to save you money. And good for the earth too! Low natural gas emissions will allow you to operate on ozone action days and help win green contracts with your customers.

Reliable Starting.

Easy starting with Command PRO® digital spark ignition and high-torque solenoid shift starter.

Durable, Long Life Design.

Hydraulic valve lifters are oil pressurized, ensuring that push rods stay in constant contact with the rocker arms. Requiring no adjustment, the valve train is virtually maintenance-free. In addition, full-pressure lubrication delivers continuous lube to critical engine components, even at 25-degree angle of operation and optional oil cooler regulates the oil temperature extending oil-change intervals.

High Power Performance.

Overhead valve technology provides greater volumetric efficiency and a higher compression ratio. This produces more power, improved fuel economy and cooling and reduces oil consumption. In addition, there is virtually no carbon buildup, reducing overall maintenance costs. The variable speed, mechanical governor promises smooth performance, regardless of application or fluctuating demands for power.


User-Friendly Maintenance.

  • Extended maintenance intervals
  • Yellow oil fill cap & dipstick handle
  • Dual oil drains
  • Easy-access oil fill/dipstick
  • Three-year unlimited-hour warranty

High Power Performance.

  • High-performance spark plugs
  • 15 amp charging, regulated
  • Overhead valve (OHV) design

Reliability and Long Life Design.

  • Oil cooler
  • Hardened crankshaft journals
  • PTO sleeve bearing - optional
  • High-efficiency fan and screen
  • Dual element low-profile air cleaner
  • Cast iron cylinder liners
  • Hydraulic valve lifters
  • Full-pressure lubrication
  • Spin-on, full-flow oil filter

Quiet, Smooth Operation.

  • Engineered material blower housing
  • International Emissions Certifications

Easy Dependable Starts.

  • Low-pressure regulator with vacuum lock-off
  • Electronic ignition system
  • Solenoid shift starter
Engine Uses

Engine Type:

4-cycle, gasoline, OHV, cast iron cylinder liners, aluminum block

Command PRO CH740NG
J1940 Power hp(kW) 1 19.5 (14.5)
Displacement cu in (cc) 44 (725)
Bore in (mm) 3.3 (83)
Stroke in (mm) 2.6 (67)
Peak Torque lbs. ft (Nm) 30.8 (41.8)
Compression Ratio 9.0:1
Dry Weight lbs (kg) 94 (43)
Oil Capacity U.S. quarts (L) 2 (1.9)
Lubrication Full pressure w/full-flow filter
Dimensions L x W x H in 14 x 17.7 x 19
Backpressure Limit 2 50
J1995 Power hp (kW) 3 17.1 (12.7)
J1995 Rated Speed (RPM)  3600
* Length is grass screen to PTO mounting face. Width is spark plug to spark plug. Height is top of air cleaner to mounting feet.
1 Power (hp) and Torque (lbs ft) specifications for Kohler general purpose engines are rated pursuant to Society of Automotive Engineers (SAE) J1940 based on gross output testing performed according to SAE J1995 without the air cleaner and muffler. Actual engine power and torque are lower and affected by accessories (air cleaner, exhaust, charging, cooling, fuel pump, etc.), application, engine speed, ambient operating conditions (temperature, humidity and altitude) and other factors. This J1940 / J1995 rating provides consistent measurement to customers who may want to control the intake and exhaust features of the engine. For more information, contact Kohler Co. Engine Engineering Department. Kohler Co. reserves the right to change product specifications, designs and standard equipment without notice and without incurring obligation.

2 Inches of H20 @ 3600 RPM WOT

3 J1995 power and torque certified by 3rd Party Witness