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Hobart EZ-TIG 165i TIG Welder 500551

Code: 500551
Hobart EZ-TIG 165i TIG Welder 500551+ CLICK IMAGE TO ENLARGE
Cyberweld Price: $1,339.00
Mfg Industrial Price: $1,807.00
You Save:  $468.00
Availability: Usually ships the next business day
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Hobart EZ-TIG™ 165i TIG Welder 500551

The Hobart EZ-TIG™ 165i TIG welder is a complete 230V AC/DC welding package that offers a unique single knob control making it the quickest and easiest AC/DC TIG welder to set up and use. Just plug it into 230 VAC, connect the gas, select the material and thickness, and you are ready to weld. It has superior weld performance from 22 gauge to 3/16 in. (.81 mm to 4.8 mm) in both AC (aluminum) and DC (steel/stainless steel/chromoly). The EZ-TIG 165i is a light weight inverter-based design that includes a foot control.


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  • EZ to use interface with one knob and one switch control
  • AC output for superior aluminum welding, DC output for mild and stainless steel
  • Fan-On-Demand to only have the fan run when needed reducing dust/debris being pulled into the unit
  • Infinite amperage control for broader operating range with finer control
  • Inverter-based power source provides a more consistent welding arc while using less power
  • Weighs only 50 lb. (23 kg) so it's EZ to take anywhere
  • HF start to allow for a non-contact arc start to eliminate tungsten and material contamination
  • Auto-postflow to provide optimum shielding based on welding amperage without waste or need for adjustment
  • Automatic high temperature shutdown


    Comes comlete with
  • Hobart EZ-TIG™ 165i inverter based power source with primary cord and plug attached
  • 12.5 ft (3.8 m) Legacy 17 Weldcraft TIG torch
  • Foot-operated control using the RFCS-RJ45 Remote Foot Control
  • 12 ft. (3.7 m) work cable with clamp
  • Regulator/flow gauge with hose
  • Gas regulator, flowmeter and shielding gas hose

    This item ships Free via standard ground shipping within contiguous U.S.

  • Download Hobart EZ-TIG 165i Spec Sheet (Requires Adobe Acrobat Reader)
    Download Hobart EZ-TIG 165i Spec Sheet (Requires Adobe Acrobat Reader)

    Miller RCCS-RJ Remote Fingertip Control 770669
    Code: 770669
    Genuine Miller® RCCS-RJ remote contactor and current control for your Hobart EZ-TIG™ 165i or Miller Diversion® 165 & 180 TIG welders.
    Mfg Industrial Price: $200.49Cyberweld Price: $189.80

    6 Reviews

    Availability: Usually ships the next business day
    Code: migaccessories1
    Choose inert shielding gas and CO2 cylinders for your MIG welder or TIG welder. Select Oxygen or Acetylene cylinders for your portable welding, cutting or brazing equipment.

    17 Questions & 16 Answers
    from Durham, NC asked:
    March 25, 2019
    What is the length of the power cord from the unit to the wall outlet?
    1 Answer
    Hobart EZ-TIG 165i TIG Welder 500551 has a 7 foot power cord.
    Submitted by: Customer Service on March 25, 2019

    Reginald C
    from Freeport, NY asked:
    January 14, 2019
    What is the thickest material (Aluminum & carbon) it can weld?
    1 Answer
    Hobart EZ-TIG 165i TIG Welder 500551: Material Thickness Range AC: 22 ga.€“3/16 in. (aluminum) DC: 22 ga.€“3/16 in. (steel/stainless steel/chrome-moly)
    Submitted by: Cyberweld on January 16, 2019

    from FL asked:
    September 24, 2018
    Can you weld copper with this machine? If so what thickness and what would else would I need to do that?
    1 Answer
    Hobart EZ-TIG 165i TIG Welder 500551 can tig weld copper up to 3/16. Along with the filler wire, you would use straight argon.
    Submitted by: Cyberweld on September 28, 2018

    from Florida asked:
    January 4, 2017
    what is the warranty on the ez tig 165i
    1 Answer
    The Hobart 5/3/1 warranty is as follows: Five-year warranty on transformers, stabilizers and generators; three years on electronics (drive motors, rectifiers);and one year on guns (MIG, TIG, and plasma torches)
    Submitted by: Customer Service on January 4, 2017

    from at the welding bench asked:
    January 3, 2017
    Any reason I can not use a water cooled torch and a remote cooler with this unit?
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 is not designed to be used with a water cooler or water cooled torch.
    Submitted by: Customer Service on January 3, 2017

    from Orange County asked:
    November 24, 2016
    How long is the post flow on this machine?
    1 Answer
    The minimum on your Hobart Ez-Tig 165i will be 6 seconds, 1 second for every 10 amp you weld.
    Submitted by: Customer Service on December 9, 2016

    Chris Seuferling
    from MO asked:
    May 26, 2016
    What is the duty cycle specs of this machine?
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 has a 20% duty cycle at its rated output of 150 amps
    Submitted by: Customer Service on May 27, 2016

    Jimmie P. Montgomery
    from NC asked:
    May 6, 2016
    What is the lowest usable amp output. I mean like my old syncrowave would only go as low as 2 amps which made welding micro screen difficult and welding screen wires together was a pain as well. I am looking for an ac dc tig near the $1000 range and I don't want chinese junk or I'd order a machine from Eastwood for $700.
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 is capable of going down to 10 amps..A machine like the Miller Dynasty 210 TIG Welder 907685 is capable of 1 amp but his is a $3000.00 machine.Trying to find a quality AC/DC tig welder for your application for less than $1000 is going to be difficult.
    Submitted by: Customer Service on May 6, 2016

    from nyc, ny asked:
    March 2, 2016
    Can i also stick weld with this machine? using the dc setting
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 does not have stick welding capability
    Submitted by: Customer Service on March 2, 2016

    from KS asked:
    November 18, 2015
    What consumables come with the welder. Outside of the argon can I tig weld with it right out of the box?
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 does not come with any extra consumables.. The tig torch comes loaded with a 3/32" tungsten and is ready to use.All you will need to weld is a cylinder of argon gas and some filler wire.
    Submitted by: Customer Service on November 19, 2015

    from Santiago, Chile asked:
    July 8, 2015
    Hello good afternoon. I have a doubt about the voltage and hz? I'm from chile and here we have 220V and 50Hz machine is compatible with that input?
    1 Answer
    Hobart advises that the Hobart EZ-TIG 165i TIG Welder 500551 can run on 220v 50Hz power.
    Submitted by: Customer Service on July 8, 2015

    from Atlanta, GA. asked:
    May 18, 2015
    Will a water cooled torch setup work?
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 is not designed for use with a water cooled tig torch.
    Submitted by: Customer Service on May 18, 2015

    from manhattan kansas asked:
    November 26, 2014
    I have a 220 30 amp breaker for my miller ac dc thunderbolt will this be ok for the ez tig?
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 will draw 23 amps at its rated output .. Your breaker should work with this machine
    Submitted by: Customer Service on December 1, 2014

    from tommyj1968@verizon.net asked:
    September 1, 2013
    thoses this tig welder have squarewave
    1 Answer
    Hobart EZ-TIG 165i TIG Welder 500551 does not feature squarewave technology.
    Submitted by: Customer Service on September 5, 2013

    kRISH .Gopeesingh
    from Houston asked:
    April 15, 2013
    what is the difference between 165i and 165 ?
    1 Answer
    The Hobart EZ-TIG 165i TIG Welder 500551 and the Miller Diversion 165 are nearly identical machines.. Both are made by Miller with the differences being in the torches.. The Miller machine uses a Weldcraft LS17 tig torch with a built in finger tip amperage control.. The Hobart uses a Weldcraft WP 17 tig torch and the machine comes with a footpedal for amperage control.. This footpedal is an extra cost option on the Miller.. So basically the difference between the models is how the welding amperage is controlled
    Submitted by: Customer Service on April 15, 2013

    from RSA asked:
    August 19, 2012

    from nh asked:
    August 11, 2012
    Is there a optional available- finger tip control for the heat at the torch or you can only uses the foot pedal
    1 Answer
    Yes, you can get a fingertip control for your EZ-TIG welder. Thanks to your question, we have added the Hobart RCCS-RJ #770669 remote contactor and current control to Cyberweld. It will plug directly into your machine. Here's the link: http://store.cyberweld.com/horcrefico77.html
    Submitted by: Customer Service on August 13, 2012

    29 Reviews
    90% (26)
    7% (2)
    0% (0)
    0% (0)
    3% (1)
    97% Recommend this product (28 of 29 responses)
    By AJ
    Mahopac, New York
    January 18, 2018
    After a year and a half.....
    Has worked out great. I use it for chromoly tubing (race car stuff) and aluminum... fabrication, repairs, additions, etc.. I have found it to be much easier to do than MIG, and with better results mainly because I don't have to concern myself with the wire feed speed of the MIG which I was never good at getting right, lol. With the TIG I am able to control all that with your eyes and hands and for me it just seems to have worked out better. I also think it's more convenient when jumping back and forth between steel and aluminum.... you grab the appropriate rod, adjust the heat, change electrode in the torch if needed (takes 5 seconds) and go.... This unit is very reasonably priced and turned out to be well worth the investment. It paid for itself in no time. Unless you're doing high volume or exotic metals this machine will do. Oh, and you'll need an argon bottle to get started also. Apologize for the long winded review, but this turned out to be one of only a handful of purchases I can honestly say that is totally worthwhile. One more important piece of advice... don't cheap-out on a welding helmet.... Get an auto-darkening one... Cyberweld has em for the best price.... besides allowing a better bead.... Good visibility when you start your weld (especially if you are a beginner) will save you from sticking the electrode and having to stop and grind over and over. Trust me on this one - I learned the hard way.
    ProsIt's ridiculously simple to use - that's the real beauty of it. It makes perfect welds It's also light and compact
    ConsIf you're working out of your house, you will have to wire up a receptacle for the 220/30A. The 220v requirements discourages a lot of folks from purchasing this machine and end up going for the hobart 110 mig bec it's less of a hassle to use.. You don't need to do this! I tapped into the clothes dryer circuit and added a transfer switch for safety. I also made a 30' extension cord which has come in very handy for when a friend comes by with a race car that needs a bracket or a tab welded.... I don't have to move my stuff around to get their car inside to work on it. Got everything needed for that at Lowes
    By Gene
    July 22, 2016
    Loving it so far
    Received quickly. Great welder. This is my first TIG, so I've mostly just been practicing bead after bead on aluminum and carbon.
    ProsVery easy to set up. Good quality components. Torch has a flex head.
    By Warren
    SE Michigan
    May 17, 2016
    First One=Zero, Second One=Five Star
    Did a bunch of homework, and finally decided on the Hobart knowing it was backed by Miller and trying to find a used one was fruitless. First one showed up in three days-Awesome!, Got it all set up, flipped the helmet down and stepped on the pedal----and BANG, out went the lights-literally--blew every breaker in the garage. Hmm, so reset all the breakers, checked the plugs, and hit the power again--nothing- totally dead. So, called back to Cyberweld the next day and after a few hours a new one was on the way directly from Miller. Plugged it in, turned my head, closed my eyes and stepped on the pedal--all was good. Proceeded to use it on stainless and aluminum tubing for 4 days straight without even a hiccup. Made me look way better than i should be-great machine for its intended materials and amp range. Great warranty and great customer service. Cyberweld is in my bookmarks from now on.
    ProsPerfect size, easy to use. Versatile in its range. Great price.
    ConsFactory Quality Control should have caught the first one.
    By Ramon G.
    March 10, 2016
    Great product fast shipping
    Quick shipping and easy to order from website.
    I ordered a Hobart because I own a Hobart 180
    Mig. I bought the mig ten years ago and I've never had any problems with it. I don't know how to tigweld but I was able to lay some sloppy beads on some aluminum pipe. Not a hiccup,burp or fart outta this baby! I'm confident that this one will last just as long as my mig has. It's so nice to be able to weld aluminum now! I'm super happy I finally got me a tig!!!
    ProsEasy setup Good quality Reliable And very capable
    By Mark
    Arbor Vitae, Wisconsin
    February 29, 2016
    Well made TIG welder
    The Hobart EZ-TIG 165 is truly simple to set up and use. The DC arc is exceptionally smooth compared with other TIG machines I've owned. I welded some 18 gauge stainless steel with the Hobart in testing the unit on DC and was quite impressed. The AC arc is also quite good, for I did a lap-weld on some 20 gauge scrap aluminum without much difficulty, and on 16 gauge aluminum and thicker it really welds nice. The EZ-TIG 165 should serve my needs since I'll mainly use it for repair work and small fabrications in which its relatively low duty-cycle should not be a handicap. Cyberweld's price on the machine was great, as was their service as usual.
    ProsThe Hobart is made by Miller and the quality is top-notch. The included Weldcraft TIG torch is excellent, as is the Argon gas regulator. The remote amperage pedal works well.
    ConsNone at this point.
    By John C.
    New Smyrna Beach Fl.
    December 3, 2015
    Hobart EZ Tig 165i
    I am self taught at welding for over 48 year's and have run a million miles of wire but never used a tig until now. The Hobart EZ Tig 165i made it so EZ for me by taking out the guess work of setting it up to use it. You still need to understand what you are doing and control your puddle but with about 15 minutes of familiarization I was of and running. This is a great little machine for a beginner at Tig welding. I'm glad I chose this one and remember to always drive Lincolns drink Millers but weld with Hobart you'll be happy you did.
    By Chuck
    July 30, 2015
    hobart ez tig 165i tig welder 500551
    works great , very happy with it .
    Prospriced right
    By Andy
    May 15, 2015
    Great welder
    I've owned the ez tig for about a month now, and I'd have to say it's a good machine. It welds steel and aluminum vey well. The AC setting has good cleaning action but still puts out a lot of penetration. The DC setting is nice and smooth and can weld some pretty thick material (with multiple passes). All in all, I'm very pleased with this welder. I thought it would be underpowered and I would have wished I had just saved up and bought a bigger machine, but it seems to be just right for me. Also, cyberweld got this machine to me in THREE days...for free!
    ProsEasy operation. Comes ready to weld.
    By Ryan
    March 12, 2015
    Great working welder, poor customer service from cyber weld
    This welder is awesome. Its identical to the miller 165. Inside all the parts are miller labeled. I've never tig welded before but the setup was easy and i'm slowly learning. The problem I had is with cyber weld, not the welder at all. I still gave this a 5 start because it's a great welder even if cyberweld dropped the ball. When I ordered the page said it shipped within 48 hrs. It took about two weeks to get the welder. The welders are backordered but cyber weld wont tell you that. After waiting a few days for a tracking number and getting nothing I called them. I was informed it hadn't shipped because my shipping address was different. No biggie I told them it was actually me ordering it and to ship it. The lady never replied to my email so I called. The lady that answered the phone was rude and not helpful.. I talked to the lady that emailed me and she was also rude and told me that the problem wasn't that my address was different it was that they were on backorder. Ok, cool. 8 Days later I still have no tracking info so I email them asking if they know when it will ship. No response, nothing. Tried one more time, nothing. By this time i'm frustrated because i'm being ignored. The welder finally showed up 4-5 days after my last email. I never did get a response and will probably not order from them again because of it.
    ProsGreat welder
    ConsBad customer service, I doubt i'll order again from them.
    By Wayne
    Colleyville, Texas
    January 15, 2015
    Perfect first TIG welder
    I am not a professional welder so researched a lot of sites prior to this purchase looking at opinions and recommendations. Since my need ius to weld thin metal for auto restorations this welder hit the mark on price and capability. I have an older Miller TIG but wasn't satisfied that I or the welder were a good fit for the 22 to 18 gauge metal I needed to seam up. This EZ TIG quickly proved itself as I pulled it out of the box, set it up, sharpened the tungsten and promptly managed to butt weld my 22 gauge test pieces without a single burn-through. While I definitely need to practice much more to do presentable work and tune my technique, I am now sure I have the right tool and technology to enable me to achieve my objective. I am now the variable in this process that needs improvement, not my tool. Thanks to Cyberweld for the quick free delivery, and offering this terrific product at such an attractive price.
    ProsPrice, easy to use, accessible consumables, Miller heritage, warranty
    ConsAre you kidding, did you see my pros?
    By Raffi
    Fort Lauderdale
    September 16, 2014
    Best price I found free shipping and is a great deal after going through 3 HF chinese welders. Works perfect and includes everything you need nicely packaged.
    By Will
    August 10, 2014
    First time TIG!
    Very easy set up, quality manufacturing, and performs great for my needs being a beginner! Highly recommend this for anyone interested!
    By Chris
    Bohemia, NY
    April 13, 2014
    Fantastic Machine
    Granted I've only done a few test welds to make sure the machine works, but I'm certain of one thing, this machine is incredible. I've had the pleasure of using a water-cooled ESAB and a water-cooled Syncrowave and while those machines are superb to this technically, this machine is still fantastic and can weld just as nicely as those two if you have some skill. Sure it may not be able to weld for hours on end or be able to penetrate a thick piece of metal, but it suits my needs and is capable of creating great welds. I highly recommend this to anyone looking to do fabrication work for cars or similar. Get yourself a bottle of argon, plug it in, and weld away!

    The only thing I would like to point out to potential buyers is that this machine needs a 230 volt outlet. Unfortunately for me my garage wasn't equipped with such an outlet so I had to have one installed. Just a warning to those who may not have such an outlet on hand that you may need to have an outlet installed and possibly a 50 amp breaker as well so check before buying this.
    ProsLightweight Quiet Cost-effective
    By Marc
    Schertz TX
    December 16, 2013
    Great Tig
    After much research, I decided to purchase the Hobart 165i. To say the least, I am very happy with it. It does everything I need it to and then some. I am fairly new a tig welding and find this machine extremely easy to operate.
    By Sean h.
    October 15, 2013
    Absolutely positively hate it.....waste of time
    By John
    August 19, 2013
    Great Service
    No hassles just order and it is shipped right away.
    By Bill
    San Marcos, CA
    March 29, 2013
    Nice machine
    I had this thing running practically right out of the box. Well, OK, I had to go get an argon tank and some filler rods, lol. But, once hooked up, I was running beads all over scrap pieces of everything: aluminum, stainless, mild steel. Pretty decent beads, too, even though my TIG experience totaled about two hours prior to getting this welder. Can't vouch for the weld integrities, but the point is, Hobart has come up with a very nice machine that requires virtually no hassle to commence practicing. As a non-pro welder, I appreciate the fact that some of the machine set-up variables have been eliminated and I can concentrate on the act of laying a bead.
    ProsSimple controls Well-designed
    ConsNothing so far
    By Brent
    mesa, AZ
    January 8, 2013
    Excellent machine
    As advertised, happy with purchase
    By Easyway f.
    Loomis ca
    December 15, 2012
    Excellent value
    Love this machine.Handles business.
    ConsNothing so far.
    By Rick W.
    Outer Banks, NC
    October 26, 2012
    Good Product
    "I repaired an aluminum truck rack with my EZ-TIG last week. It did the job as well as any other 'TIG' machine that I have used. I did not have to waste filler or base material to set the machine, I just set the thickness on the dial and went to work. EASY.
    ProsIdeal machine for someone new to 'TIG' welding. It's lightweight and easy on the electric bill too. Bargain priced.
    By Arnob
    Port Orchard, Wa
    September 24, 2012
    First TIG Torch
    Excellent price, neat packaging, fast and free shipping.
    This is my first time using a TIG torch. Setup was fast and easy Started welding a small project out of 1/8 to 3/16 stainless after about one day of practice. Was a little worried about the duty cycle, but it is more than adequate for a new user. Havent tried welding aluminum or steel yet. Having some issues with shielding gas coverage, so I switched from a collet to a gas lens setup on the torch which seems to really help.
    ProsEasy to set up and use. Good instruction manual. Lots of optional parts for the TIG torch.
    ConsThought the power cord would be longer; but not a big issue.
    By Dan
    Spokane, WA
    September 10, 2012
    Great addition to the shop
    This machine looks very promising. Once I figure out how to TIG weld decently, I'll really be enjoying it. The unit itself couldn't be simpler: it's basically on/off, power setting, and material setting. The TIG process has a steep learning curve, but this is true of any machine.
    ProsEasy to set up and use. It's bigger than a MIG unit, but much lighter and easier to handle.
    ConsNothing so far. It's frustrating to learn how to TIG weld compared to MIG or even gas, but the machine itself is great. There are a lot of cords and hoses. Build a cart with hooks.
    By james s.
    Clark's mills pa.
    August 30, 2012
    Light fabrication
    Best price anywhere!
    Free Shipping is a bonus!
    ProsJust connected. The argon Attached the pedal, plugged it in, dialed in metal Presto runs great!!!
    By robert
    July 31, 2012
    simply perfect
    fantastic machine,very simple to set up,i just sold sync wave 200,replaced with this hobart,
    Prossimple set up,welds steel and alum. very well.priced right
    By Chester
    Charleston, SC
    July 23, 2012
    Good value
    Does a good job for light to medimum thickness carbon and stainless steel. I have not used it on aluminum yet. Foot peddal can be a little "touchey" but overall I think it's a good machine for a small shop or a mantienance shop.
    ProsGreat value for the price.
    ConsCooling fan is a bit noisey, sounds like a jet getting ready for take off.
    By Kane
    Rural Michigan
    July 9, 2012
    Fast and easy, right out of the box
    Just finished my first project with this welder (16 ga stainless) and I have to say that I'm very happy with my purchase. Welds as good as a Syncrowave at a fraction of the price. Everything was ready to go, as received. The torch, ground and power cord are pre-attached and the torch was even pre-assembled. All you have to do is attach your gas, sharpen your tungsten, plug in the foot pedal and start welding. Couldn't be easier. And for over a hundred bucks less than the identical Miller unit (Diversion 165), this Hobart is a no-brainer. Thanks, Hobart and thanks, Cyberweld!
    ProsEasy to set up Easy to operate Good welding range Good quality welds Lightweight
    ConsDidn't come with a free sammich
    By Karl
    May 24, 2012
    Happy w/ price, product & service
    Where do I start?
    Best price on the internet? Free shipping? Courteous, helpful customer service? Excellent brand new flawless product?

    I have received all the above. I did encounter a snag with shipping as I was in the process of moving and my change of billing address on my credit card had not been updated. I promptly received an email from cyberweld saying my order was placed on hold do to the conflicting information for security reasons and was asked to contact customer service. Customer service was a pleasure to deal with, unlike my credit card holder. Once that was straightened out things went smoothly until I realized I wouldn't be home to sign for the package and had to contact cyberweld for a change of address to my place of business. FYI FedEx charges $15 for in-route address change...(there goes my free shipping, but obviously my fault). After all of this, I still received my welder in 4 business days, pretty good for living in Michigan's UP.

    Upon arrival, my package was in excellent condition. All contents were in brand new, pristine condition.

    I have not used the welder extensively yet, as I am still putting my garage together from the move, but I did run a practice bead on some .120 wall DOM tubuing and WOW was all I had to say. It works as well as our Lincoln 375 TIG only without as high of range, obviously.

    All I have to say is, if you are thinking about it, just buy it, you wont regret it. :)
    By Tom
    May 9, 2012
    EZ-TIG 165
    Easy to put together and use. Works really good.I've been using a Miller 250 syncrowave for years at work and while it doesn't have the same power on the top end or duty cycle like the Miller it works just as well. I tried a lift arc that was a few bucks less but it was a pain in the butt to use.The Hobart lights up easy and has great control.
    Prosworks great
    Consnothing yet
    By Don J.
    Marinette, Wi
    March 8, 2012
    Small unit for small jobs
    I haven't used my welder extensively yet. I have done some small steel jobs and one small aluminum repair. Everything worked as expected. I did like the inverter for the aluminum repair. It kept the arc focused to add a small amount of filler on the end of a small pin. I think using a cat5 cable to the foot control is a plus, much more cost effective to replace if damaged.
    ProsPrice, versatile, light weight,
    ConsDuty cycle being very low over 90 amps.

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    Hobart EZ-TIG 165i TIG Welder 500551 detail
    Hobart EZ-TIG 165i TIG Welder 500551