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GENMAX

GENMAX Tri Fuel Generator,10500-Watt 458cc Tri Fuel Gasoline Propane Natural Gas Portable 50A Generator with Remote Start,Ideal for Home backup power.

  • Based on 68 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Oct 7 – Oct 9
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Style: GM10500iETC


Features

  • Strong Load CapacityGM10500iETC has the maximum power among single cylinder silent inverter generator, the whole machine can work stably at 8500w running watts and 10500w starting watts on gasoline, 8000w running watts and 9500w starting watts on LPG, 6800w running watts and 8400w starting watts on Natural Gas, so large load starting current equipment, air compressor/blower/air conditioner can carry at one time.THD less than 3% perfect for sensitive equipments such as computer and cell phone.
  • Diversified functional control Panel Easy operation panel with remote start one-button start/electric start /ATS automatic control, etc., diversified configuration: equipped with 1X 120/240V AC 30A L14-30R Outlet,DC Cigarette Lighter Outlet: 12V DC 8.3A, 1X 120/240V AC 50A 14-50R Outlet,4X120V AC 20A 5-20R Outlet ,CO Alarm, Parallel Connectors,Battery Charging Port, overload reset switch and LED Light,Voltage transfer Switch can meet 120V/240V simultaneous use
  • Neutral FloatingFor easy bonding, make it perfect for home standby back up power easy connect the house. Using our special Bonding Plug(Sold seperately) to change the neutral floating to neutral bonded status for portable use.
  • Tri-fuel selectivity Multi fuel choice can reduce the fuel shortage risk, gasoline and LPG, Natural Gas can be used.Fuel selector switch design patent, smooth operation, easy to use.
  • perfect protection devicesThe whole machine is equipped with perfect protection devices, such as overload protection, thermal protection, overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection, overspeed protection, etc., which greatly facilitates the user's operation and improves the reliability/safety of the whole machine;
  • GENMAX SupportIncludes 1-year warranty with FREE lifetime technical support from experts.

Brand: GENMAX


Wattage: 10500 watts


Fuel Type: Tri Fuel


Power Source: Gasoline, Propane(LPG), Natural Gas(NG)


Voltage: 120 Volts


Output Wattage: 10500


Special Feature: 50A Plug,voltage transfer switch, ATS,CO Shutoff, Forced lubrication,Remote start, Rain cover,oil filter, Resettable Circuit Breaker,LED light, Neutral Floating, Tri-Fuel,LCD Display,Low Oil Shutdown See more


Included Components: Battery Charger (1) ATS Cable (1) Rain Cover (1), Funnel (1) NEMA L14-30P Locking Plug (1) NEMA 14-50P Industrial Plug (1), Generator，Spark Plug Socket Wrench (1) Dual-Purpose Screwdriver (1), Remote Control Key (1) LPG Hose (1) NG Hose (1) NG Quick Connector (1) See more


Color: Orange


Product Dimensions: 30.9"L x 22.6"W x 29.3"H


Brand: ‎GENMAX


Wattage: ‎10500 watts


Fuel Type: ‎Tri Fuel


Power Source: ‎Gasoline, Propane(LPG), Natural Gas(NG)


Voltage: ‎120 Volts


Output Wattage: ‎10500


Special Feature: ‎50A Plug,voltage transfer switch, ATS,CO Shutoff, Forced lubrication,Remote start, Rain cover,oil filter, Resettable Circuit Breaker,LED light, Neutral Floating, Tri-Fuel,LCD Display,Low Oil Shutdown


Included Components: ‎Battery Charger (1) ATS Cable (1) Rain Cover (1), Funnel (1) NEMA L14-30P Locking Plug (1) NEMA 14-50P Industrial Plug (1), Generator，Spark Plug Socket Wrench (1) Dual-Purpose Screwdriver (1), Remote Control Key (1) LPG Hose (1) NG Hose (1) NG Quick Connector (1)


Color: ‎Orange


Product Dimensions: ‎30.9"L x 22.6"W x 29.3"H


Model Name: ‎GM10500iETC


Engine Type: ‎4 Stroke


Ignition System Type: ‎Electronic


Tank Volume: ‎6.9 Gallons


Engine Displacement: ‎458 Cubic Centimeters


Total Power Outlets: ‎7


Starting Wattage: ‎1.05E+4 Watts


Running Wattage: ‎8.5E+3 Watts


UPC: ‎752671930840


Manufacturer: ‎GENMAX


Part Number: ‎GM10500iETC


Item Weight: ‎298 pounds


Item model number: ‎GM10500iETC


Style: ‎GM10500iETC


Special Features: ‎50A Plug,voltage transfer switch, ATS,CO Shutoff, Forced lubrication,Remote start, Rain cover,oil filter, Resettable Circuit Breaker,LED light, Neutral Floating, Tri-Fuel,LCD Display,Low Oil Shutdown


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎1 year


Date First Available: July 4, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 7 – Oct 9

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • Amazing deal
Style: Gm10500XiT
Review Image by CzarZee CzarZee
Review Image by CzarZee CzarZee
Review Image by CzarZee CzarZee
Review Image by CzarZee CzarZee
I've got about 20 hours on this generator so far - just enough to warrant an oil change next time I use it. Used mainly propane for break-in period. Starts every single time literally within seconds, no hassle, no fuss.. So far I'm thrilled. These are four things that NO other generator on the market right now combines into a single package: 1. >10kW, 2. Tri-fuel, 3. Inverter, 4. Has a remote start and ATS port - it even comes with a cable to hook up to your ATS or home automation system (dry contact). It's not that quiet compared to e.g. a Predator 9500 but honestly, not THAT much louder. Open frame generators are going to do that and it's still quieter than a Champion I'm replacing with it. And it comes with some nice little bonus features, like a magnetic dipstick (usually a $10 addon you always have to buy because who runs a generator without one?) and a waterproof cover! One very small complaint is that nearly every generator I've ever bought has come with the first bottle of oil you need to add. This does not. Make sure you have a quart of 10W30 before you start hooking it up. I highly recommend it and look forward to many years of strong usage with it! If you’re in the fence I hope this review helps you! ... show more
Reviewed in the United States on August 13, 2025 by CzarZee CzarZee
    • A Very Nice Generator (updated 3/20)
Style: GM10500iETC
After weeks of frustration with the shipper, the GENMAX gm10500ietc generator finally was delivered. The delivery itself went quick and easy. Thumbs up to the delivery team. Getting the shipper to actually make the delivery is where the frustration came from. Word of advice to buyers; once the item has made it to the local distribution hub/last mile delivery point, be proactive on scheduling delivery, don't wait for them to call. Once I called and scheduled delivery, I had the item within a few days. Now to the generator: The GENMAX gm10500ietc was very well packaged and the generator was delivered undamaged. After unpacking, saw lacking was a User Manual. Reached out to GENMAXservice via email and got a reply within a few hours basically saying GENMAX has gone paperless (whether or not this is true, I'd like to hear from other reviewers in this regards) and the User Manual can be viewed online. If I wanted a printed User Manual, they'll send one out after providing proof-of-purchase, serial number and address, So, thumbs up to GENMAXservice for their prompt reply and willingness to sending out a User Manual. Also worth noting: the generator also did not come with the assorted plugs as seen in the listing or viewed in some unboxing videos which is okay. By the time you purchased a length of cord to use with the plugs, you could just as well purchase a premade cord ready to use out of the box. Did come with a quart of 10w30 motor oil tho, which I found surprising. For those wanting to know, the unit did come with a magnetic tipped dipstick so no need purchasing an after-market. After adding oil, connecting the battery and hooking up generator to propane, the generator fired right up. For break-in, ran the gm10500ietc for 2 hours with a couple of space heaters connected to the 30 amp/240 outlet, varying the load, with ECO mode on or off, heat gun plugged into the gfi outlets, the generator didn't miss a beat. Ran smoothly, rpm increased/decreased as the demand increased/decreased. First used the push button to start/shut down and then tried the remote. Remote worked perfectly. Did not need to add batteries or pair up the device. After running for 2 hours, weighed the 40# propane tank, did the math and came up with 3 lbs was used in that time. Still have some more break-in time to do before first oil change. So far, with the GENMAX gm10500ietc, everything is looking good and am confident I'll get many years of use. Went with 4 stars and not 5 due to the frustration experienced with delivery. If I could go with half stars, would of went 4 1/2 out of 5. It wasn't what I was expecting. Guess I'm too used to Amazon delivery going flawless nearly everytime. Update March 20, 2025 GOT THE JOB DONE!!! Due to high winds in the area, power was knocked out for most of the day. Pulled the 10500 out of storage and hooked up to house propane, started right up as I expected it would do and was able to power the whole house during the outage. Granted, being a moderate day, didn't need heat or AC and kept the water heater shutoff during the outage so the demand wasn't as great as it could of been. Am on a well tho and had no problems with lack of water. Used the microwave, coffee maker and toaster throughout the day. No problems there either. All in all, the generator ran for over 6 continuous hours with ECO set to ON with no problems whatsoever. Son commented on how quiet the generator was and how you hardly knew we were on backup power. So for powering through an outage like a champ, this generator regains it's lost Star and is now rated 5 Stars in my book. ... show more
Reviewed in the United States on December 5, 2024 by Mitchell M.
    • Try fuel running, and quiet for the neighbors.
Style: GM10500iETC
Works well, surprisingly quiet from others I have had. Put a meter to it, has stable voltage both legs of 240 and locked on @ 60 HZ so it’s easy on devices. Very well made from bottom up. Would buy again if I need one, but might get the Genmax open frame only for ease of service. Great product. A+
Reviewed in the United States on August 22, 2025 by watchman
    • Incorrect high voltage output under load (247v - 250v) and support says it's ok.... (It's not)
Style: GM10500iETC
Review Image by Alexander Alexander
I'm using the generator to plug into an off-grid EG4 inverter. Was really excited about the 2-sire start feature and the advertised clean power. (<3% THD) My EG4 inverter is plugged into the 50A connection but the generator is producing consistently high voltage. I get 250v when the unit is not under load and 247v with a load on it. Unfortunately my inverter has a max generator voltage that this unit is exceeding, so the EG4 system never switches over to generator power. Super frustrating. I contacted Genmax support, sent them videos and photos and so far their response has been "well, that's normal." It's absolutely NOT normal. A 240v inverter/generator that's advertised as having clean power SHOULD produce 240v. I'm happy to make adjustments or replace a voltage regulator, but so far Genmax support has decided that they're ok with my system not working as advertised. Should have bought the Generac. ... show more
Reviewed in the United States on September 4, 2025 by Alexander Alexander

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