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
15 Vertical Single Air Current
Engine Uses

Professional Grade Design.

Professional grade engineering for the consumer. Cool-running OHV design and tough cast-iron cylinder bore provides better fuel efficiency, more torque per unit of displacement and means your engine will last longer in harsh mowing conditions - so you can keep your mower longer and avoid costly trips to the repair shop.

Durable, Long Life Design.

Twin-cam design with cross flow cylinder head provides better cooling, more power and longer life.

High Power Performance.

Consistent-Cut™ technology delivers more consistent power to your mower deck in extreme load conditions, maximizing cutting, bagging, and mulching performance. So you can rest assured knowing there will be less clumping and missed areas.

Comfortable Operation.

Tough on grass, easy on you. Dual-reciprocating balancer reduces vibration on the operator's hands and feet - essential for big jobs. The tri-phase acoustically dampened air induction system reduces noise for quieter operation.

Reliable Starting.

An extra-large starter allows for quick and consistent starts. Making starting your mower simple every time.


User-Friendly Maintenance.

  • Easy-access oil check and fill
  • Inverted crankcase for leak-proof operation and easy oil change
  • Two-year limited warranty

High Power Performance.

  • OHV design for incredible efficiency
  • Twin-Cam design provides better cooling, more power and a longer engine life.
  • Large 597cc size allows for reserve torque - perfect for tough jobs.
  • Consistent-Cut™ technology for higher-quality cut

Reliability and Long Life Design.

  • Heavyweight design for a stronger engine
  • Cast-iron cylinder liner ensure your engine will last long in harsh conditions
  • Pressurized lubrication with filter ensures the engine is strong even at extreme angles
  • Internally vented carburetor

Quiet, Smooth Operation.

  • Dual-reciprocating balancer reduces operator fatigue.
  • CARB & EPA emission-certified

Easy Dependable Starts.

  • Extra large electric starter makes starting your mower simple - every time.
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® SV471
J1940 Power hp(kW) 1 15 (11.2)
Displacement cu in (cc) 36.4 (597)
Bore in (mm) 3.7 (94)
Stroke in (mm) 3.4 (86)
Peak Torque lbs. ft (Nm) 27 (36.6)
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 16.3 (12.2)
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