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Inverter generator · tri-fuel In stock · ships from Dallas

GENMAX GM6250iET 6250-Watt Tri-Fuel Silent Inverter Generator

6,250-watt tri-fuel inverter with a 50A outlet, Bluetooth, and 2-wire auto start.

5.0 (4 reviews)

$719.40 $1,399.00 SAVE $679.60 (49% OFF)

In stock · ready to ship Ships tomorrow Order today and it leaves our Dallas, TX warehouse tomorrow.

Tracking number sent by email as soon as the freight carrier picks up your order.

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3-year warranty
30-day returns
Free delivery

Starting watts

6,250 W

On gasoline

Running watts

5,500 W

On gasoline

Fuel

Tri-fuel

Gasoline, Propane, Natural gas

Outlet

50 A

Overview

Tri-fuel, with a 50A outlet.

On gasoline the GM6250iET is rated at 6,250 starting watts and 5,500 running watts, and it also runs on propane and natural gas. GENMAX lists up to 10 hours at 25% load and total harmonic distortion at or under 3%. The panel has two 120V 20A outlets, a 120V 30A L5-30R, a 120/240V 50A 14-50R, and USB charging. It can start from the button, a key fob, the Bluetooth app, a 2-wire auto-start lead, or the recoil.

50A 14-50R Plus a 30A locking outlet.
Five ways to start Button, fob, app, 2-wire, recoil.
CO sensor With a digital display.

GENMAX GM6250iET · Feature 1

Three fuel choices

Gasoline, Propane, Natural gas

GENMAX GM6250iET · Feature 2

Start it your way

Electric, remote fob, Bluetooth app, 2-wire auto start, recoil

GENMAX GM6250iET · Feature 3

Outlet options for different loads

Two 5-20R 20A, L5-30R 30A, 14-50R 50A 120/240V, USB-A/C

GENMAX GM6250iET

Specifications

Figures for this model. If you need a detail that isn’t listed, ask us and we’ll check before you order.

Ask about this model

Model	GENMAX GM6250iET
Type	Inverter generator
Fuel	Gasoline, Propane, Natural gas
Starting watts	6,250 W gasoline
Running watts	5,500 W gasoline
Gasoline running watts	5,500 W
Runtime	Up to 10 hours at 25% load on gasoline
Distortion	3% THD or less
Outlets	Two 5-20R 20A, L5-30R 30A, 14-50R 50A 120/240V, USB-A/C
Starting	Electric, remote fob, Bluetooth app, 2-wire auto start, recoil
Safety	CO sensor

Customer reviews

Reviews from GENMAX GM6250iET owners.

5.0

Based on 4 reviews

100% (4)

0% (0)

Customer photos (3)

Mark R.

Runs whole house including 4-ton AC without flinching

David M.

Clean freight delivery and great build quality

Travis H.

Fuel versatility is a complete lifesaver

Mark R.

Tyler, TX

October 24, 2026

★★★★★

Runs whole house including 4-ton AC without flinching

Ordered the GENMAX GM6250iET 6250-Watt Tri-Fuel Silent Inverter Generator after getting tired of sitting in the dark during Gulf storms. Freight delivery arrived on a liftgate truck right onto my concrete driveway. Hooked it into our manual transfer switch with a 50A cord and ran our central 4-ton AC, two refrigerators, well pump, and all household lights. Electric start fired right up on propane.

David M.

Broken Arrow, OK

October 12, 2026

★★★★★

Clean freight delivery and great build quality

Driver called me 24 hours ahead of time to coordinate delivery. Unit was bolted onto a heavy pallet and wrapped securely. Added oil, connected a 100-lb propane tank, and pushed the start button. Purrs like a kitten and the digital meter makes monitoring voltage and hours simple. Couldn't ask for a better machine at this price point.

Travis H.

Ocala, FL

September 28, 2026

★★★★★

Fuel versatility is a complete lifesaver

The tri-fuel capability was the main selling point for me. Being able to connect directly to our residential natural gas line means no more storing 50 gallons of stale gasoline in the garage. Build quality is solid industrial grade and the frame feels bulletproof.

Gary W.

Marysville, OH

September 15, 2026

★★★★★

Remote start key fob works from inside the house

Tested the wireless remote start from about 80 feet away through the back patio door—started immediately. It is surprisingly quiet for an engine of this displacement. Very impressed with the packaging and complete hardware kit included.

GENMAX GM6250iET

Questions and answers

Can’t find what you need? Send us a message and we’ll get back to you.

What fuels does the GM6250iET run on?

It runs on gasoline (6,250 W starting, 5,500 W running), propane, and natural gas.

Can it back up my house?

The 50A 120/240V outlet is the connection normally used with a home transfer switch or interlock kit. Have a licensed electrician size and install that connection.

How does delivery work?

Delivery is free to residential addresses. Orders ship from our Dallas, TX warehouse, and larger items arrive by freight with a liftgate drop at your curb or driveway. You get a tracking number by email as soon as the carrier picks up your order.