Generator produces power, but uncertain if power is consistently clean power. I think the hours are correct but can't positively confirm.

The Onan (Cummins Onan) Commercial Mobile Power unit matching model 7HGJAE-2132C (also listed as 7.0HGJAE-2132) is a Quiet Gasoline (QG) 7000 commercial mobile generator.

Note that “CMM5500” appears to be a mix of older series naming (CMM for Commercial Mobile/Marquis-style commercial mobile gensets) and the 5.5 kW class; the specific model number 7HGJAE-2132C identifies the 7-kW version. These were commonly installed in commercial vehicles, service trucks, food trucks, mobile workshops, and similar applications.

Key Description and Specifications

It is a compact, enclosed, air-cooled gasoline generator designed for vehicle-mounted commercial use. Key features include exceptionally low noise and vibration for its class, an integrated sound-attenuated housing with enclosed muffler (easier installation and quieter operation), self-diagnostic capability, digital voltage regulation for stable output under changing loads, and the ability to run two air conditioners with power to spare.

Power output: 7,000 watts (7 kW) prime / intermittent, single-phase, 120 V only (58.3 amps). 60 Hz.

Engine: Cummins Onan OHV EH65V 4-cycle, air-cooled, 90° V-twin, ~653 cc (39.8 in³), running at 2880 RPM. Approx. 14 hp max on gasoline. Pressurized through-flow cooling, electronic magneto ignition, full-pressure lubrication with spin-on filter and low-oil-pressure shutdown.

Fuel: Gasoline (carbureted on this model; some related variants are EFI or LP). Typical consumption roughly 0.42 gal/h no-load, 0.73 gal/h half-load, 1.22 gal/h full-load. Many non-EVAP versions draw from the vehicle chassis tank.

Dimensions & weight: Approximately 33.6 in L × 22.2 in W × 16.7 in H; ~290–299 lb.

Sound level: About 70 dB(A) at 10 ft (3 m) under typical full-load conditions (installation usually reduces this further).