Harbor Freight Predator 4200W Generator
Harbor Freight Predator 4200W Dual-Fuel Inverter Generator (Item 71203)
Dual-fuel (gasoline or propane) inverter generator, 4200 starting watts / 3200 running watts, 187cc engine, automatic fuel switchover from propane to gas without shutdown, pure sine wave output (safe for sensitive electronics), CO Secure auto-shutoff, digital display, 2× 120V outlets + TT-30R RV outlet + USB-A/USB-C, 65 lbs.
Real-world load test confirmed: ran an RV A/C + fridge + microwave simultaneously (2,600–2,700W) on propane, consistent with the 3,200W running rating. A welder tested near max capacity also tracked with spec. Parallel kit (sold separately) links two units for double output.
HF's spec sheet lists 59.8 dB(A) (likely measured ~23ft); a reviewer measured 70 dB at 3ft — a real, meaningful gap, but likely measurement-distance methodology rather than a fabricated spec. Don't plan generator placement around the 59.8 dB number. Always run outside, away from doors/windows, regardless of the CO Secure feature.