2017 Kohler Engine 14RESA 14 kW Generator


Kohler Engine
14RESA 14 kW Generator



14RESA Single Phase or 3 Phase, Natural Gas|LPG

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.

The Power You Need
  • PowerBoost™ technology provides power to start large loads such as central air conditioners without dropping power to other appliances
  • Extraordinary peak motor-starting capacity: 14RESA at 35kVA at 240V and 20RESA at 40.5kVA 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 optional 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
The Conveniences You Expect
  • 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.
  • Model 14RESA approved for off-grid applications with 18-month/1000-hour off-grid warranty
  • Rated kW LP: 14 kW
  • Rated kW NG: 12 kW
  • Amps LP: 58 amps
  • Amps NG: 50.0 amps
  • Peak Motor Starting kVA @240 V: 33 kVa
  • Alternator Note: All information shown is for 1 Phase 60 Hz generator with the largest alternator option available.
  • Displacement: 725 cm3 (44 cu. in.)
  • Horsepower: NG 20.5 HP, LP 23.6 HP
  • Enclosure Material: Composite
  • Sound Output During Weekly Exercise: 63 dB(A)
  • Sound Output During Full-speed Operation: 67 dB(A)
  • Response Time: 10 seconds
  • Warranty: Premium five-year limited warranty
  • Country of Origin: US
  • Certifications/Listings: EPA|CSA|UL 2200
  • Automatic Transfer Switch Included: No
  • Remote Monitoring Available: Yes
  • Off Grid Warranty: 18-month/1000-hour for off-grid applications
  • Off Grid / Utility Backup: Off Grid|Utility Backup
  • Weight: 420 lbs.
  • Alternator Type: 2-Pole, Rotating Field
  • Fuel Consumption on NG at 50% load?: 124 cfh
  • Fuel Consumption on LP at 50% load?: 60 cfh
  • Controller: RDC2 Digital Controller
  • Cylinder Arrangement: V-2
  • Dimensions: 1216mm x 655mm x 733mm (48 in. x 26.2 in. x 29 in.)
  • Engine Manufacturer/Description: KOHLER
  • Engine Model: CH740
  • Engine/Alternator RPM: 3600
  • Fuel Type: Natural Gas|LPG
  • Frequency: 50 Hz|60 Hz
  • Phase: Single Phase or 3 Phase
  • Voltage @ 60 Hz: 120/240
  • Digital Voltage Regulation: ±1.0%
  • Built in Mounting Pad: Yes
*Based on generator and load size.



Engine Type
Gas: 20.5 hp; LP: 23.6 hp
725 cc (44 cu. in.)


48 in. (1216mm)
26.2 in. (655mm)
29 in. (733mm)
420 lb.


AC Output
LP: 14 kW; Gas: 12 kW
Noise Level
67 dB(A)

Related Products