20kW Kit includes Generator, Transfer switch (100 or 200Amp), cold weather kit, battery, and optional concrete pad... and Tax is included!  $7300 OUT THE DOOR!  Financing is also available.


Our most popular generators for backup power provide award-winning reliability and performance. When you lose power during an outage or storm, a hard-working 14/20 kW KOHLER® generator keeps your appliances working, the heat or AC running and your security system on. Now also available in 3 phase.*

  • Reliable.

    Every KOHLER® generator is equipped with a heavy-duty, commercial-grade engine that stands up to extreme weather.

  • Powerful.

    In just 10 seconds, your KOHLER generator automatically restores power to a 5-ton (60,000 BTU) air conditioner, major appliances and electronics.*

  • Premium warranty.

    We've got you covered with 5-year, 2,000-hour protection, and a corrosion-proof enclosure that's built to last.

  • Award winner.

    KOHLER generators have received several awards, including the Most Valuable Product (MVP) Award 2010 by Building Products magazine.


  • PowerBoost™ technology provides power to start large loads such as central air conditioners without dropping power to other appliances

  • Extraordinary peak motor-starting capacity: 14RCA at 33kVA at 240V and 20RCA at 41kVA at 240V

  • Premium power quality delivers exceptional digital voltage and frequency regulation along with low levels of harmonic distortion to protect sophisticated electronics

  • Powered by reliable KOHLER Command PRO® engine, designed and tested for tough commercial applications; with hydraulic valve lifters to eliminate need for lengthy break-in periods and expensive valve adjustments; operation speed is 3600 rpm (the standard for air-cooled generators)

  • Compatible with OnCue® Plus and OnCue® Plus Wireless Generator Management Systems, and Programmable Interface Module (PIM)

  • Also compatible with Load Control Module (LCM) or Load Shed kit with single-phase generators only


  • RDC2 controller designed for today's sophisticated electronics manages both the generator set and Model RXT transfer switch functions

  • Quiet, neighborhood-friendly operation with sound levels similar to a typical central air conditioner

  • Stylish corrosion-proof enclosure impact tested to -30°F

  • Runs on either natural gas or liquid propane (LPG) with simple switching between natural gas and LPG in the field

  • Streamlined installation, simple terminal block for easy field connections. Kohler also offers concrete mounting pads to lower installation costs and time.

  • Streamlined installation, simple terminal block for easy field connections. Kohler also offers concrete mounting pads to lower installation costs and time.


$8,000.00 Regular Price
$7,300.00Sale Price
  • Rated kW  LP20 kW

    Rated kW NG18 

    kWAmps LP 83 

    ampsAmps NG75

    ampsPeak Motor Starting kVA @240 V41 kVa

    Alternator NoteAll information shown is for 1 Phase 60 Hz generator with the largest alternator option available.

    Displacement999 cm³ (61 cu. in.)

    HorsepowerNG 27.1 HP, LP 30.9 HP

    Enclosure Material Aluminum

    Sound Output During Weekly Exercise64 dB(A)

    Sound Output During Full-speed Operation69 dB(A)

    Response Time10 seconds

    WarrantyPremium five-year limited warranty

    Country of OriginUS

    Certifications/Listings. cUL|UL 2200|EPA|CSA

    Automatic Transfer Switch Included Yes

    Remote Monitoring  Available

    Included Off Grid / Utility Backup.   Utility Backup

    Weight 600/611 lbs. (272/277 kg)

    Alternator Type 2-Pole, Rotating Field

    Fuel Consumption on NG at 50% load? 161 cfh

    Fuel Consumption on LP at 50% load?82 cfh

    Controller RDC2 Controller

    Cylinder Arrangement V-2

    Dimensions 1193 mm x 666 mm x 817 mm (47 in. x 26.2 in. x 32.2 in.)

    Engine Manufacturer/Description  KOHLER

    Engine Model CH1000

    Engine/Alternator RPM 3600

    Fuel TypeLPG|. Natural Gas

    Frequency 60 Hz

    PhaseSingle Phase or Three PhaseVoltage @ 60 Hz120/240|277/480Digital Voltage Regulation±1.0%

    Built in Mounting Pad Yes