Part number 907506. Trailblazer 275 (Kohler), GFCI. MillerTrailblazer welder/generators deliver unbeatable arc performance providing the smoothest, most stable arc in the industry. Auto-Speed technology delivers superior runtimes, increased fuel efficiency, and improved welder/generator performance. No other compact machine in the 275-amp class delivers more welding power or more auxiliary power with better fuel efficiency and less noise for productive, profitable, quieter jobsites. Engine Idle Speed 2400 RPM. Engine Weld Speed: 2400 RPM, 2800 RPM , 3200 RPM ,3600 RPM. Fuel Tank Size:12 Gallon. Horsepower 23.5 hp. Rated Output: CC/DC Stick/TIG 275 A at 28 V, 100% duty cycle , CV/DC MIG/FCAW 275 A at 28 V, 100% duty cycle. Amp 10-275. Current type: DC.