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The KOHLER KG100R is an enclosed, liquid-cooled standby generator designed for residential and light commercial backup power. Its industrial engine supports extended operation during utility outages, while the controller manages generator operation and provides system information for service and monitoring.

Key features

  • Liquid-cooled powertrain: 6.2 L (378 cu. In.) engine operating at 1800 rpm.
  • Fuel flexibility: Designed for natural gas or LP vapor operation. Fuel conversion and setup must match the selected configuration.
  • Generator control: APM402 control provides system monitoring and diagnostic functions.
  • Enclosed construction: Sound-attenuating enclosure for outdoor standby installations.
  • Power quality: Voltage and frequency regulation support connected electrical loads.
  • Service equipment: Includes a unit-mounted radiator, coolant, flexible fuel lines, and battery charging equipment.

Specifications

Manufacturer KOHLER
Model KG100R
Power class 100 kW
Fuel Natural gas / LP
Cooling Liquid-Cooled
Frequency 60 Hz
Controller APM402
Engine displacement 6.2 L (378 cu. In.)
Engine speed 1800 rpm
Electrical configuration KG100R, Three-phase, 120/208, 4R12X Alternator, Aluminum Enclosure, CA/MA Compliant
Line circuit breaker 350 A
Enclosure Aluminum

Manufacturer SKU: KG100R-QS5

Included equipment

Generator in the selected enclosure and configuration. Automatic transfer switch sold separately. The listed configuration includes a factory-installed block heater.

Installation and sizing

Match voltage, phase, fuel supply, and connected loads to the selected configuration. Output depends on fuel and operating conditions. Installation, fuel-system work, and transfer-switch connections require a qualified installer.

View KOHLER model information and manuals

ManufacturerKOHLER
Model NumberKG100R-QS5
Voltage120/208 V, three-phase, 60 Hz
Standby Rating100 kW NG/LPG
Rated Current347 A
Line Circuit Breaker350 A
EnclosureAluminum (wind rated) sound enclosure
Weight (wet)3340 lb (1515 kg) aluminum
FuelNatural gas or LPG (dual fuel on select QS models)
EngineKOHLER KG6208THD, 6.2 L turbocharged V-8, 1800 rpm
CoolingLiquid-cooled, radiator, 113 F ambient
ControllerAPM402, Modbus, NFPA 110 Level 2 capable
Sound Level65 dB(A) at 7 m
Fuel Consumption 100% LoadNG 1473 cfh, LPG 664 cfh
Fuel Inlet1.5 in NPT
CertificationscUL/UL 2200, CSA, EPA NSPS
Dimensions (L x W x H)138.8 x 45.4 x 65.5 in (3525 x 1154 x 1665 mm)
Warranty5-year/2000-hour basic; 5-year Premium optional

Specifications are from the manufacturer and may change. Questions? Call (888) 831-0450.

KOHLER 5-Year / 2000-Hour Limited Warranty (5-Year Premium optional)

Coveragedefects in materials and workmanship for 5 years or 2000 hours, whichever occurs first
Labor and travelcovered in years 1 and 2 only (basic warranty)
Usestationary standby backup to a utility source; mobile or non-standby use voids the warranty
Registrationstartup by a KOHLER distributor/dealer submitted to KOHLER's warranty startup program
Optional5-year Premium limited warranty (parts, labor, travel) available
How to claimcall 1-800-544-2444

Manufacturer warranties are provided by the manufacturer. Keep your invoice as proof of purchase. Questions about a warranty claim? Call (888) 831-0450.

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