Kohler Engines. Relentless Power. Legendary Performance.




With its innovative twin-cam design, the KOHLER Courage® single-cylinder engine delivers more horsepower and greater displacement than any engine in its class.

Fuel Type
20 Vertical Single Air Current
Engine Uses
Engine Uses
Power Generation/Welder
Riding Mower
Zero Turn Mower

Equipment Types

This engine powers the following equipment:

  • Portable Generator
  • Garden Tractor
  • Rear Engine Rider
  • Lawn Tractor
  • Yard Tractor
  • Mower, Zero Turn Radius

Engine Type:

4-cycle, gasoline, OHV, single-cylinder, air-cooled, vertical shaft, full pressure lubrication with full-flow filter, aluminum head and crankcase with cast iron cylinder liner.

Courage® SV601
J1940 Power hp(kW) 1 20 (14.9)
Displacement cu in (cc) 36.4 (597)
Bore in (mm) 3.7 (94)
Stroke in (mm) 3.4 (86)
Peak Torque lbs. ft (Nm) 34 (46.1)
Compression Ratio 8.5:1
Dry Weight lbs (kg) 79 (35.8)
Oil Capacity U.S. quarts (L) 1.6 (1.5)
Lubrication Full pressure w/full-flow filter
Dimensions L x W x H in 19.4 x 16.4 x 12.9
Backpressure Limit 2 50
J1995 Power hp (kW) 3 19.1 (14.3)
J1995 Rated Speed (RPM)  3600
* Length is valve cover to end of blower housing. Width is air cleaner to opposite side. Height is mounting feet to grass screen.
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