Model GN875iThe WEN GN875i is a 7000-watt inverter generator built on a 420cc OHV 4-stroke engine. This wattage tier handles job-site power tools, RV systems, and whole-home backup during outages. The inverter technology keeps sensitive electronics safe while the dual-fuel capability extends runtime flexibility.
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Here's the quick tradeoff view — what this model does well, and where it may not fit.
The WEN GN875i is a gasoline generator rated for 7000 running watts with 8750 starting watts. That combination targets both sustained output for ongoing loads and the extra surge capacity needed when equipment first kicks on.
Because it is an inverter generator, the GN875i also focuses on delivering power in a form that suits modern devices, while still anchoring its performance in the straightforward refueling and operation of gasoline.
Running at 7000 watts with a 8750-watt starting ceiling, the GN875i is built to handle steady demand while also covering the brief inrush that comes with motor-driven tools and appliances. Its gasoline fuel system is paired with a 4.2-gallon tank, giving you a concrete sense of how often refueling enters the routine.
At 50 percent load, WEN lists a 6.7-hour runtime, which translates into a meaningful stretch of operation for planned use windows without constant stops. Power quality is also a clear highlight here: total harmonic distortion is listed as under 1.5 percent, a figure that aligns with cleaner output for sensitive electronics when you want stable, inverter-based power.
With a listed weight of 136.7 lbs, the GN875i is a substantial unit that rewards planning around where it will live and how it will be moved into place. Its physical footprint, measured at 26.8 x 26.4 x 23.2 inches, helps set expectations for storage space and for fitting the generator into a garage corner, shed, or dedicated outdoor spot.
Those dimensions also make it easier to visualize clearance around the unit for setup, especially when you want to keep controls accessible and outlets protected during use.
Starting flexibility is a central convenience feature on the GN875i, combining recoil start with electric start so you can choose between a manual pull and a powered start method. Day-to-day monitoring is supported by a fuel gauge and built-in indicators, which help you track status at a glance rather than relying on guesswork.
The generator is EPA compliant and includes a spark arrestor, a pairing that speaks to regulated operation and safer exhaust spark control. It is also RV-ready, and it adds practical protection with covered outlets, helping keep connections shielded when the generator is set up outdoors. Automatic voltage regulation is included as well, reinforcing steadier output control alongside the inverter design. WEN backs the GN875i with a 2-year warranty, giving the purchase a defined coverage window.
Est. running: 1,800W
Peak surge (single motor): 2,000W
Avoid starting multiple motor loads at the same time.
Est. running: 5,000W
Peak surge (single motor): 2,000W
Avoid starting multiple motor loads at the same time.
Est. running: 3,800W
Peak surge (single motor): 6,000W
Avoid starting multiple motor loads at the same time.
These are estimates using typical wattage assumptions. Real appliances vary. Startup surges can be 2–6× the running wattage for motor-driven loads. 240V loads require a 120/240V generator and proper connection. Use a transfer switch or interlock kit; never backfeed a panel.
WEN is renowned for delivering affordable, reliable generators and power equipment, catering to various residential and industrial needs.
| Fuel | Running | Starting | Runtime @50% | Runtime @25% |
|---|---|---|---|---|
| Gasoline | 7000W | 8750W | 6.7h | Not available |
| Running Watts | 7,000 watts |
|---|---|
| Starting Watts | 8,750 watts |
| Starting Watts (Gasoline) | 8,750 W |
| Running Watts (Gasoline) | 7,000 W |
| Engine | 420 cc OHV 4-stroke |
|---|---|
| Engine Type | OHV 4-stroke |
| Engine Displacement | 420 cc |
| Spark Arrestor | Yes |
| Emissions Compliance | EPA |
| Voltage (AC) | 120/240 |
|---|---|
| Voltage (DC) | 5 |
| Running Amps | 58.3/29.2 A |
| Peak Amps | 72.9/36.5 A |
| AC Frequency | 60 hz |
| Current | 58.3/29.2 amps |
| GFCI Outlets | No |
| Neutral | Floating |
| USB Outlets | 2x 5V USB port |
| DC Outlets | 2x 5V USB port |
| AC Outlets | 2x Duplex 120V 20A (5-20R); 1x 120V 30A (TT-30R); 1x 120/240V 30A (L14-30R) |
| Total Harmonic Distortion (THD) | <1.5% % |
| Dimensions | 26.8 x 26.4 x 23.2 inches |
|---|---|
| Weight | 136.7 lbs |
| Automatic Low Oil Shutdown | Yes |
|---|---|
| Emissions Compliance | EPA |
| Automatic Voltage Regulation | Yes |
| Automatic Voltage Regulator | Yes |
| Commercial Warranty | 2 years |
| Covered Outlets | Yes |
| Electric Start | Yes |
| Fuel Gauge | Yes |
| Fuel Tank Capacity | 4.2 gallons |
| Included Accessories | Tool kit, 2 altitude kits, battery, and wheel kit |
| Indicators | Yes |
| Inverter | Yes |
| Overload Protection | Low oil and overload protection |
| Parallel Capable | No |
| Recoil Start | Yes |
| RV Ready | Yes |
| Starter Type | Recoil, Electric |
| Starting Components | Recoil, Electric |
| Starting System | Recoil, Electric |
| UPC | 44,459,875,000 |
| Warranty | 2 years |
| Wheels | Yes |
| Fuel Type | Gasoline |
|---|
| Runtime @ 50% | 6.7 hours |
|---|---|
| Runtime @ 50% Load (Gasoline) | 6.7 hours |
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