Industrial-Welder-Generator Research Archives

The Willys Motor was repurposed for a variety of uses, including Welders, Generators, Mowers, Auxiliary Power, Boats, and more.

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General Supply & Hesse Compressor History

• CATEGORIES: Features, Industrial-Welder-Generator

UPDATE: Thanks to Brett, I’ve added some photos of a later model General Supply V4 (possibly a Ford V4) at the bottom of the post. 

Rick Webb shared what he knows about the history of General Supply Compressors & Hesse Compressors. His father Paul Webb played a principle role in the compressor’s development. I’ve included pics below to show how much alike they looked.

For reference, this is a General Supply GS-250 Compressor powered by an L-head. More pics here:


Contrast the one above with this one, a Hesse Horney Compressor powered by an L-head. More pics here:


Rick began, After reading information on youtube and the forums it seems as though there are a lot of questions concerning the hesse hornet and the gs-260 air compressors.I don’t claim to have all the answers however I can shed some light on the development of these units.

My father, Paul Web, lost his dad at the young age of 24 and took a job at the General Supply and Leasing Company in Kansas City, Missouri, in 1951 as a delivery driver. A division of the McDowell Tire Company, General Supply sold tire changing equipment.

When he took the job he met a man by the name of Dick Roberts who was an engineer. They soon hired a man with the last name of Simes (pronounced “Sims”) whose first name I do not recall.Simes was from Arkansas and was a self taught mechanic. He could not read or write, so they taught him to sign his name so he could cash his paycheck. He never used a torque wrench; however when his engines were tested his torque specs were spot on. Continue reading

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Generator North Hampton, MA **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was $375.

Doesn’t run.

“Does not run. Willy’s jeep motor.”



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Propane Powered Generator Pollock Pines, CA **SOLD**

• CATEGORIES: Features, Industrial-Welder-Generator

UPDATE: **SOLD** Was $1500.

Here’s an interesting item. It’s powered by a Hercules engine (according to the seller).

“This is a commercial propane backup generator that was installed in a fire station. It was working when removed. It is approximately 20kw. The best part is the engine is the same engine that was in production Willy’s at the time. It is powered by 1960s Jeep Hercules 6 cylinder flat head. Please call for more info and to take a look.
Cash only and sales will be made in person.’

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Hobart Welders

• CATEGORIES: Industrial-Welder-Generator

Two Jeep-powered Hobart Welders for sale.

  1. Southern New Jersey: “hobart welder willys engine ran when parked been a couple of years” $300
  2. Visalia, California: “Hobart Portable Welder with Willys L134 Motor. Motor turns over but is missing the carburetor. Appears to be otherwise complete. Asking $500. I will sell the welder without the motor (you remove) for $250.”
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Year? MB/GPW w/Welder Ventura, CA $5000

This could make a cool restoration .. something different.

“One of a kind old Jeep and welder.”


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Willys Industrial Engine Seligman, AZ **Status Unknown**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **Status Unknown** Was $1200.

Tom’s got this engine for sale.

“Willy’s Jeep industrial ,complete Engine 4 cyl flat head L134 mb go devil 1941-1945
only 1200 hours on engine, came out of running military generator so its idle hours only
not running on the road
really clean for its age

No starter motor and/or fan blade
as pictured was running good last time it ran bout 1 year ago
has oil and anti freeze in it”


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Hobart DC Welder Alexandria, VA **Status Unknown**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **Status Unknown** Was $300.

(02/04/2015) Gas tank leaks, but still may be a good price.

“Hobart DC welder from the 50s powered by an industrial 4 cylinder CJ2A Willys flat head engine . Item has been stored in a garage for around 25 years after being taken out of service due to a leaky gas tank. The cables were scrapped due to the insulation all falling off of them years ago. The engine is stuck from sitting for years but should not have gotten any water in it. I have a key for it that fits the switch and moves between positions. Item being removed from a period transport trailer.”

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Hobart Welders

• CATEGORIES: Industrial-Welder-Generator

Here are a couple Hobart welders with jeep engines on each coast. Both operate.

1. Hobart Welder, Fruitland, Idaho $750.

“Older Hobart Portable welder/generator, 250 amp, 40 volt, 60% duty cycle. Powered by a Willy’s Industrial 4 cylinder motor. Has one 110 outlet on the front panel. It has been started, runs well and will strike an arc and weld. Currently missing the battery and ground clamp, welding cables are weathered.”


2. Hobart Welder, Haverhill, MA $600.

“Hobart “tow-behind” welding machine with bottle racks.
4 cylinder WILLYS flathead runs great. Armature has a shot and only provides a scratch-arc”



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Fire / Willys-powered Unit George, WA $2500

Its an interesting piece.

“For sale is a pull behind Willys Power Unit. It had a fire pump on the back which has been removed and sold. You can buy it and put another pump on the back, or a generator or an air compressor or???  The engine itself is a 4 cylinder Willys. It’s hasn’t ran in years but it DOES turn over. Since the pump has been sold ahead of it, I AM willing to sell just the engine if you’re not interested in the whole thing. $2500 for the whole thing or $2300 for just the engine. You remove AND haul. ”

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Hobart Welder Snohomish, WA **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was $300.

It runs, but needs some work. May be a good price.

“Hobart Gas Engine Driven welder generator. Will need some work to make run but does run and work. Currently the engine cover is off and the radiator was removed to be replaced. Have new radiator and needs to be reassembled. Gas in tank is likely bad from sitting. With some work you can have a decent running older welder generator. Or use the parts for something else.
The engine is a cool old JEEP Willys industrial motor.
AS is no trades. The welder head alone will fetch $300 worth of scrap copper at the recycle yard, I would just rather see it go to someone who has the time to use it.”


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Industrial Engine Sand Hollow, ID **SOLD**

• CATEGORIES: Engine, Industrial-Welder-Generator

UPDATE: **SOLD** Was $650.

It appears in good condition.



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Air Compressor Pittsfield, MA **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: Was $150. **SOLD**

Seller saved this and hopes a willys lover can use it.

“Up for sale is a willys jeep powered air compressor I saved it from the scrapyard with plans to restore but have no time for it anymore. Would like to see it go to a jeep collector it turns over that’s all I know about it. Looks pretty complete”


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Hesse Hornet Air Compressor **SOLD**

• CATEGORIES: Features, Industrial-Welder-Generator

UPDATE: **SOLD** Was on eBay.

This is a little confusing. Seller calls this a CJ-6A engine, but the tag reads CJ-3A. It’s a flathead, so the CJ-6A designation seems incorrect.





“For sale is a 1963 Hesse Hornet compressor made by the Hesse Carriage Co. It was designed to sit in the back of a pick-up or on it’s own small trailer. This particular Hesse uses a rare Jeep Kaiser 4cyl CJ-6A engine. It pumps air by having two of the 4 cylinders blocked off to compress while the other two function normally. The engine itself looks good and runs great. It may need a small tune-up from storage but nothing major. It does not come with a battery or gas tank. I tested it by rigging up a temporary tank.
Continue reading

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Onan Generator Leland, IL **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was $1800.

It runs and generates.

“World War 2 military generator made by Onan. It comes mounted to the trailer and with a vintage wing tank for extra fuel. It is powered by a Willys jeep motor. The generator was bought surplus after the war by the Elgin Amateur Radio Society and they used it for years. The motor runs good with a fresh tune and LOF. The genset is putting out power but the controls on the board need to be cleaned and gone through from sitting. $ 1800, SOLD AS IS”

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Willys Firepump Pennsylvania $2500

• CATEGORIES: Industrial-Welder-Generator

Bill Lehuta has this for sale. You can call him at 215-6969203 for more information.

“I have this WW2 Willys marked firepump with a jeep engine. It is complete and in excellent original condition.”


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Hobart Welder Alexandria, VA $450

• CATEGORIES: Industrial-Welder-Generator

This might be worth a look.

“Hobart DC welder from the 50s powered by a 4 cylinder CJ2A jeep flat head engine and mounted on a 2 wheel trailer that fits Chrysler rims. Item has been stored in a garage for around 25 years after being taken out of service due to a leaky gas tank. The cables were scrapped due to the insulation all falling off of them years ago. The trailer tongue has a single hole in a flat strap cut with a gas torch.
The engine is stuck from sitting for years but should not have gotten any water in it.
I have a key for it that fits the switch and moves between positions.”

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2 Hobart Welders Kent, NY **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was $500. Unclear if they are $500/a piece or for both.

“Hobart Gas driven Welder , On trailer. (2)
Willies 4 cylinder
Not run in several years.
Both turn Over.
Will Barter”


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CJ-3A Motor Powered Winona, MN **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was $350.

Runs, but needs work.

“cJ3a jeep motor converted into air compressor runs on 1&4 pumps air on 2&4. Does start but needs plugs and wires maybe carb cleaned? Comes with trailer and hose reel.”

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1950s? Hobart Welder/Generator Southern Cal **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was $650.

Joel is selling his grandfather’s willys-powered Hobart welder/generator. It ran when parked by his grandfather.




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1944 Signal Corps Power Unit New Jersey **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: Was $300. **SOLD**

This Willys powered power unit has potential.

“Vintage 1944 WWII aircraft generator. This generator was running 10 years ago. Currently turns over, but we have not tried to start it. Has been dry garage stored for 30+ years.

Four cylinder Jeep Willy’s engine capable of generating 120V, and also 400Hz. There is a separate Chrysler starter motor (attached to flywheel) that can be hooked to a 6V battery for easy starting. A small hand crank for starting is also included.

It is a 2.5kW 400Hz aircraft generator, but has been modified for 120v 60Hz output on one outlet.

We do not have any manuals or paperwork for this unit. The manual is available via:
The manual is: TM 11-975 Power Unit PU-35/U (17 November 1944); 53 pages, 28 illus.

Dimensions on this unit are 47″ length x 22″ width x 38″ height. It is on small metal wheels. This would easily fit on a small trailer. A winch and set of ramps with careful management of the generator could be possible for one individual. It is very heavy though!

If this ad is posted, the generator is available. More photos available on request. Cash upon pickup.”


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CJ-5, CJ-3B and Willys Powered Equipment Pine Grove, PA **SOLD**

• CATEGORIES: CJ-3B, CJ5, Industrial-Welder-Generator


Kyle from East Coast Willys is helping a seller clean his lot of Willys stuff. Here are some links to stuff that are available.


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Welder Generator Thornton, VA **Status Unknown**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: Status Unknown. Was $250.

It doesn’t run at the moment.

Older welder generator with willys industrial engine, this ran several years ago but is not in running condition today because I don’t have time for working on it, these generator welders were a staple before the smaller modern designs came along, being sold as is

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Empire Tractor Marlow, OK **SOLD**

• CATEGORIES: Features, Industrial-Welder-Generator • TAGS: .

UPDATE: **SOLD** Was $650.

Finding an Empire Tractor is a rarity. Carl and I are finishing up a special post about them for eWillys sometime in May.

“Interesting little Empire tractor. These were built from left over Jeep and Willy’s parts from WWII. For the best source of information go to – this one is almost complete, the engine, drive train, etc, is there. It’s missing some of the body/panels. Great project or if someone is restoring a 40’s/50’s Jeep or Willy’s, lots of good parts! $650 cash.”

empire-tractor-marlow-ok1 empire-tractor-marlow-ok2 empire-tractor-marlow-ok3

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Hobart & AIRCO Welders Kentucky **SOLD**

• CATEGORIES: Industrial-Welder-Generator

UPDATE: **SOLD** Was No Price.

The Hobart has a Willys Engine while the AIRCO has a Continental.

“I have a couple welders Im going to get rid of. They have been sitting a while and would need work. They havent ran in quite a few years. Give me an offer.. The AIRCO Hornet Special has an Continental flat 4 in it. The Hobart has an Willys Industrial flat 4 in it. If interested please email back. Thanks”



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Hobart Welder Pittsburgh, PA $750

• CATEGORIES: Industrial-Welder-Generator

It welds, but needs leads.

“Older welder Has willys jeep engine.
runs & welds no leads.
With or without trailer $ 750.00 obo.
Call Rich 412-896-3771”