Internet #308894774

Model #GEN4000DF-STW

4,000/3,500-Watt Dual Fuel Powered Portable Generator with Stick Welder (TIG Ready)

  • Ideal for light-duty automotive and industrial welding
  • Use at home, on the farm, or at the shop
  • Easy to use, lightweight and portable
  • See More Details
Limit 5 per order

Frequently Bought Together


Product Overview

The HIT 4000 Surge-Watt Dual Fuel Generator with Stick Welder has everything you need for the job in 1 package. A 3500 Running Rated Watts generator is combined with a 85 Amp TIG/Stick welder to provide flexibility and convenience in a single unit. With 4,000 peak watts and 3,500 rated watts the Dual Fuel Generator is a powerful generator than can handle the needs of most contractors, homeowners and recreational activities. Equipped with (4) 120-Volt outlets, (1) 120-Volt RV outlet, and (1) 12-Volt DC outlet for battery charging, this generator can handle almost everything you need at the job site. Utilizing either unleaded gasoline or propane gas, so you can use whichever fuel is more easily available or affordable at the moment, providing the long-lasting, clean burning advantage of propane gas, plus the familiar and easy to find benefits of unleaded gasoline. Easy to use, lightweight and portable, this Stick Welder (TIG Ready) is ideal for light duty automotive and industrial welding at home, on the farm, or at the shop. For better welds and consistent output, the 85 Amp 120-Volt Stick Welder is inverter powered, to manage fluctuations in input power for better welding and dependability. The Welder utilizes a 120-Volt plug, so it can be used at any standard outlet, for convenience and versatility. Use 1/16, 5/64, or 3/32 in. electrodes to weld mild steel, stainless steel, cast iron, and hard surfacing.
  • California residents
  • 4,000 surge watts and 3,500 running watts can run the RV, household appliances, and power tools
  • Generator utilizes either unleaded gasoline or LPG propane gas as a fuel source (propane tank not included)
  • 7.0 HP engine, 4 stroke, 212 cc, air cooled, recoil start, OHV 4 stroke engine with AVR, recoil start, single phase
  • 9-hour run time with a 50% load on an full 3.2 Gal. gas tank, or 12-hours with a full 20 lbs. propane tank
  • Four 120-Volt AC outlets (each 20 Amp), one 120-Volt RV outlet (30 Amp), one 12-Volt DC outlet (8 Amp) for battery charging, circuit protection
  • AC/DC circuit reset, engine shut off switch, welding power switch, low oil shutdown, oil capacity: 18.5 oz. SAE 10W30
  • Less than 69 dB noise with no load at 23 ft.
  • Comes with a DC connector wires for charging 12-Volt automotive-type batteries, a spark plug wrench, and a 5 ft. regulator hose kit
  • High altitude use: this generator is not recommended for high altitude use above 3,000 ft.
  • EPA approved, non-carb compliant/not for sale in California
  • Surge watts/running watts may be reduced by 10% when using propane fuel versus using gasoline
  • Inverter power manages input fluctuations for better welds and more control
  • Comes TIG ready for scratch start, over/low voltage protection, anti-sticking, and hot start
  • Thermal overload protection with indicator light for safety, arc force
  • Welds mild steel, stainless steel, cast iron, and hard surfacing
  • Powered by the generator, 120-Volt input, 60Hz, 25.75 Amp, single phase
  • 76-Volt DC no load voltage, duty cycle 25% at 85A, 10 to 85 Amp DC output range
  • Uses 1/16, 5/64, and 3/32 in. (1.6-2.5 mm) electrodes, E6013, E7014, E7018, and stainless steel suggested
  • Welds up to 1/8 in. in a single pass
  • Equipped with 6 ft. welding cable with electrode holder, 6 ft. ground cable with earth clamp, face mask, and wire brush

Info & Guides

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Product Height (in.)
Product Length (in.)
Product Width (in.)


Emergency Use,Job Site
CA (CARB) Compliant
Not CARB Compliant
Color Family
Engine Displacement (cc)
Engine Make
OEM Branded
Automatic Voltage Regulation,Built-in Fuel Gauge,Dual Fuel,Low Oil Shutdown,On Indicator Light,Resettable Circuit Breaker
Fuel Tank Capacity (gallons)
Fuel Technology
Dual Fuel
Full load fuel consumption (gallons/hour)
Half-Load Run Time
Horsepower (hp)
7.0 hp
Spark Plug Wrench
Number of Outlets
Operational Volume (dB)
Outlet Type
120V,12V DC
Power/Fuel Type
Product Weight (lb.)
Running Wattage
Start Type
Recoil Start
Starting Wattage
Suggested Uses
Large Appliances,Power Tools,Small Appliances
Voltage (volts)

Warranty / Certifications

Certifications and Listings
EPA Approved
Manufacturer Warranty
1 Year Limited Warranty

Questions & Answers


what size is the lead connector ends

Asked by Jay May 17, 2020

Hello Jay, Thank you for the inquiry about the HIT Welding 4,000/3,500-Watt Dual Fuel Powered Portable Generator with Stick Welder (TIG Ready). I believe it would be best to reach out to the manufacturer for assistance. The manufacturer is Buffalo Corp and their customer service department can be reached at 1-866-460-9436. Please contact us with any additional questions at 800-430-3376 or Thank you for shopping Home Depot.

Can you weld on 2” or 2 7/8 pipe for a fence

Asked by Ruben April 25, 2020

Can you built something with ? Like a fence maybe or it only works for minor repairs on metal?

Asked by JO February 11, 2020

I have found that it works best with 1/16 rod or 1/8 rod. You have to crank it up high and weld slow but it works .....

can you get longer leads for this welder?

Asked by cody January 30, 2020

I dont think you can order any but I went and bought heavier longer cable and used the plugs off of original cable

Does the engine idle @ low rpm, or does it always run at 3600 rpm?

Asked by Peter December 21, 2019

Mine always runs at the higher RPM

Says portable but has no wheels. How do you move it?

Asked by Reffie December 2, 2019

I bought one of those flat 4 wheel dolly's from harbor freight and bolted it to that .

how many amps does the welder have

Asked by will November 30, 2019

Not sure but I know does not work very well with 1/8 rod even on max setting. Works ok with 3/32 rod but still small arc so you have weld pretty slowly...

the product description says it is not recommended for use over altitudes of 3000 feet. we live ...

Asked by Idahoguy October 31, 2019

The specs state it’s not recommended for over 3,000 ft elevation. Why is that?

Asked by TheRogue1 October 31, 2019

Most gas engines run rich at higher altitudes and certainly lose some power. I had cheap harbor freight 1k generator at about 8k ft in utah this summer and it did ok. I think 3k ft would be ok but when you get above 9 or 10k I think it would not run very good unless you re jet the carburetor

Where to get parts for welder/generator?

Asked by CGray October 29, 2019

Thank you for your recent inquiry with The Home Depot. Feel free to contact the Manufacturer, Buffalo Corp at 636-352-98888 or by email for parts. We appreciate your business and look forward to serving you in the future.

4,000/3,500-Watt Dual Fuel Powered Portable Generator with Stick Welder (TIG Ready) - page 2

Customer Reviews

  • 41 Customer Reviews
  • 4.2 out of 5 stars overall
80% of customers recommended.
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Rating provided by a verified purchaser
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Very good machine for price. I am at 5500 ft elevation and it functions at ...
Very good machine for price. I am at 5500 ft elevation and it functions at 80 amps on propane. It functions, definitely maxing her out for high elevation
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This is fun and really useful but how do you...
This is fun and really useful but how do you make it TIG weld?
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Doesnt weld with diferent rods...
Doesnt weld with diferent rods
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Response from THD-CSApril 14, 2020
We are sorry to hear that you’re not satisfied with your purchase. We want to ensure that you have the best possible experience with our products and would love for you to reach out to us directly so that we can have the opportunity to assist you further. Please contact us at 1+(866) 460-9436 or We look forward to hearing from you!
There are no welding cables. There is no spec sheet...
There are no welding cables. There is no spec sheet or order form for cables. I’m figuring it out
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Completed three jobs so far and worked perfectly. ...
Completed three jobs so far and worked perfectly.
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Pretty good gen Pretty good welder good bang for your...
Pretty good gen Pretty good welder good bang for your buck
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Went right to work with it...
Went right to work with it
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Works great
Works great
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