KOHLER® 18RESL Residential Generator


Automatic “Hands-Off” Operation

  • Automatic Transfer Switch
  • Reliable Power in as little as 10 Seconds
  • Fueled by your home’s existing liquid propane (LP) or natural gas (NG) line
  • Full weekly exercise warms and circulates lubricants through system and tests for any issues before the next outage (shorter slow speed exercise cycles may not be enough)

Cleaner Power For Sensitive Electronics

Cleaner power to protect sophisticated appliances & electronics including: Plasma & LCD TVs, Computers, Hi-Fi equipment, communication networks, and Uninterruptible Power Supplies.

Quieter Operation

  • Quieter 68 dBA or less during operation, similar to a typical central air conditioner
  • Sound enclosure maintains neighborhood solitude whether you are in self-test or full operation mode

Easier Service And Installation

  • KOHLER® engines include hydraulic valve lifters for reliable performance without routine valve adjustment or lengthy break-in requirements
  • Easy connection kit provides fast and flexible installations
  • Integrated polymer pad for easier installations

More Powerful Performance

• Up to 18,000 Watts.

• KOHLER® Command PRO®  CH980 V-Twin,
  with hydraulic valve lifters.

• Powers All Essential Electrical Equipment
  including 5-ton central air system.

• Exclusive PowerBoost™ technology provides
  greater starting power.

• Peak motor-starting kVA: 38 kVA.

More Sophisticated Diagnostic Self-Test

• KOHLER® residential generators perform
  a 20-minute full-speed exercise cycle and
  self-diagnostic test each week to ensure
  your generator is ready to run at full
  operational speed.

• Informative feedback from KOHLER’s
  exclusive Digital Control let you know
  where service may be needed.

• Quieter operation eliminates the need for
  less robust exercise cycles that may not
  ensure performance when you need it.

Digital Controls Provide More Concise Diagnostics

• Digital Readout provides easy to
  understand troubleshooting information
  such as “OP” for low oil pressure.

• Automatic safety shutdowns protect the
  generator and home.

Faster Response

Premium Kohler technology restores power up to 3 times faster response than competitive products—in as little as 10 seconds.




Superior 5-year Limited Warranty

Commercial-grade KOHLER® quality.

Designed By KOHLER®

• KOHLER® has been setting the standard
  in quality generator design for 90 years

• Safer Power for Sensitive Electronics

• More Powerful Performance

• Quieter Operation

• Faster Response

• More sophisticated diagnostic self-test

• Easier Service and Installation

• Superior five-year limited warranty

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Power & Safety Tips

How It Works

How It Works


Rated Power (kW):

Liquid Propane (LP) 18,000 Watts

Rated Power (kW):

Natural Gas (NG) 17,000 Watts

Voltage @ 60 Hz:

120 / 240V

Amps (LP) 120/240:

150 / 75

Amps (NG) 120/240:

140 / 70


60 Hz

Transfer Switch:

Automatic 200 Amp, NEMA 3R (outdoor rated – also works indoors), whole house


999 cc 30 HP KOHLER® Command PRO® CH980 V-Twin, with hydraulic valve lifters

Engine Alternator RPM:

3600 / 3600

Engine Cooling:


EPA/CARB Certified:


Fuel Consumption LP (cu.ft/hr.)/(gal./hr.):

174 (4.7)

Fuel Consumption NG (cu.ft/hr.):


Sound Output dB(A) at 23 ft. Normal operating Load:


Response Time:

10 Seconds

Exercise Cycle:

20 min. every 7 days (complete full speed exercise)

Automatic Safety Shutdowns:

High engine temperature, overvoltage, low battery voltage, low oil pressure, overcrank safety, over speed, under frequency


Pre-painted galvanized steel for superior corrosion resistance

UL 2200:


Dimensions (L” x W” x H”):

47.2 x 28.6 x 32.5


475 lbs.

Digital Voltage Regulation:

+/- 1.5%

Total Harmonic Distortion (THD) at rated load:



Superior 5-year limited

Automatic Transfer Switch Included:


Mounting Pad Included:


Flex Fuel Line Included:


Easy Connection Kit Included:


Peak Motor Starting kVA:

38 kVA

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