100/125 kW Kohler #125REZGT, Towable Propane Generator, 277/480V., Only 17 Load Hours / 101 Total Hours, Fully Serviced & Load Bank Tested Aug 2026 by Certified Kohler Dealer

Extremely rare low-hour Kohler 125REZGT rental-grade towable generator. This unit has only 17 load hours and 101 total run hours — essentially like-new condition.

Just completed a full preventative maintenance service and load bank test on August 11, 2026 by Curtis Power Solutions, a certified Kohler service facility. Complete service report is available and video of the load test is available upon request.

Key Specs

• Model: Kohler 125REZGT
• Serial Number: SGM32GJKS
• Engine: GM 8.8L (SN 36000237)
• Fuel: Propane (LP) with onboard capability
• Power Rating: 100 kW Prime / 125 kW Standby (typical for this model)
• Voltage: 277/480V, 3-Phase, 60 Hz
• Controller: Kohler Decision-Maker 3500
• Configuration: Trailer-mounted, sound-attenuated enclosure, rental-grade package with cam-lock panel
• Hours: 17 Load Hours / 101 Total Run Hours (as of service)

Recent Service Highlights (Curtis Power Solutions – Job #R904035768 – 8/11/2026)

• Full PM completed
• Oil and filters changed
• New battery installed (previous battery was the only issue noted — unit failed to start on initial attempt; battery replaced and unit ran perfectly)
• Load bank / city certification performed
• All major systems inspected and found GOOD:
  • Air intake & filters
  • Cooling system (radiator clean, no leaks, freeze point -30)
  • Exhaust system
  • Generator windings, bearings, and connections
  • Controller, gauges, and switches
  • Belts, hoses, and fluid levels
• Unit ran clean with normal exhaust, normal engine noise, stable 480V output, and proper frequency
• Engine hours at service: started at 100.3 / ended at 100.5

This is one of the lowest-hour 125REZGT units currently available on the market. Most comparable units have 400–1,000+ hours. The combination of near-zero loaded hours + fresh full service + documented load bank test makes this an exceptional buy for rental fleets, contractors, or end users who want reliability without paying new-equipment pricing.

Located in the Baltimore, Maryland area. Can arrange shipping nationwide.

Serious inquiries only. Full service report and load test video available to qualified buyers. Cash or Certified Check only no ACH.

Additional Cables and connectors available for purchase.