2019 Kohler Engine 125ERESC 125 kW Generator


Kohler Engine
125ERESC 125 kW Generator



125ERESC Single Phase or Three Phase, Natural Gas|LPG

Reliable power for very large residential or small business needs. Built to weather the storms, our largest natural gas/liquid propane generators with industrial-grade engines keep your family comfortable and your business running when a utility failure or storm knocks out power.

  • Powerful: In just 10 seconds, your KOHLER generator automatically powers everything, keeping you connected to the things you love to do.*
  • Smart: You get steady, high-quality power that protects your electronics from damage related to low-quality power sources.
  • Advanced: The APM402 controller with patented software is compatible with optional accessories that let you monitor your system remotely through your PC.
  • Exterior options: Choose the optional corrosion-resistant aluminum enclosure or standard steel enclosure.
  • Premium warranty: We've got you covered with 5-year, 2,000-hour protection.
The Power You Need
  • A popular choice for industrial applications
  • Excellent peak motor-starting capacity: 440kVA at 240V
  • Premium power quality delivers exceptional digital voltage and frequency regulation along with extremely low levels of harmonic distortion to protect sophisticated electronics
  • Powered by General Motors Vortec automotive-grade engine with hydraulic valve lifters to eliminate need for lengthy break-in periods and expensive valve adjustments; operation speed 1800 rpm
The Conveniences You Expect
  • The APM402 controller provides advanced control, system monitoring and system diagnostics with remote-monitoring capability
  • Quiet, neighborhood-friendly operation with sound similar to a typical central air conditioner
  • Standard steel enclosure with automotive-grade paint
  • Optional corrosion-resistant aluminum enclosure
  • Runs on either natural gas or liquid propane (LPG) with simple switching between natural gas and LPG in the field
  • Rated kW LP: 105 kW
  • Rated kW NG: 125 kW
  • Amps LP: 438 amps
  • Amps NG: 521 amps
  • Peak Motor Starting kVA @240 V: 440 kVa
  • Alternator Note: All information shown is for 1 Phase 60 Hz generator with the largest alternator option available.
  • Displacement: 8.8 L (537 cu. in.)
  • Horsepower: NG 195 hp, LP 162 hp
  • Enclosure Material: Aluminum|Steel
  • Sound Output During Weekly Exercise: 73 dB(A)
  • Sound Output During Full-speed Operation: 73 dB(A)
  • Response Time: 10 seconds
  • Warranty: Five-year extended warranty
  • Country of Origin: US
  • Certifications/Listings: EPA|CSA|UL 2200
  • Automatic Transfer Switch Included: No
  • Remote Monitoring Available: Yes
  • Off Grid / Utility Backup: Utility Backup
  • Weight: 3509 lb. (1592 kg)
  • Alternator Type: Brushless, Permanent-Magnet
  • Fuel Consumption on NG at 50% load: 984 cfh
  • Fuel Consumption on LP at 50% load: 354 cfh
  • Controller: APM402
  • Cylinder Arrangement: V-8
  • Dimensions: 3526 mm x 1153 mm x 1724 mm (138.8 in. x 45.4 in. x 67.9 in.)
  • Engine Manufacturer/Description: General Motors
  • Engine Model: Industrial Powertrain Vortec 8.8L, 4-Cycle, Turbocharged
  • Engine/Alternator RPM: 1800
  • Fuel Type: Natural Gas|LPG
  • Frequency: 60 Hz
  • Phase: Single Phase or Three Phase
  • Voltage @ 60 Hz: 120/240
  • Digital Voltage Regulation: ±0.5%
  • Built in Mounting Pad: No
*Based on generator and load size.



Engine Type
Industrial Powertrain Vortec 8.8L, 4-Cycle, Turbocharged
Gas: 195 hp; LP: 162 hp
537 cu. in. (8.8 L)


138.8 in. (3526 mm)
45.4 in. (1153 mm)
67.9 in. (1724 mm)
3509 lb. (1592 kg)


AC Output
125 kW
Noise Level
73 dB(A)

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