Our Housing Process

At WINCO, we design, fabricate and assemble our own housing components.

Fun Fact: We have the ability to provide sheet metal housing for our generators that are decades old!


Each housing is constructed from galvanealed steel. A sheet of steel is loaded into our laser cutter. We generate nitrogen on-site that allows our laser to cut without impurities oxidizing on the edge.

After being cut, we form them using CNC brake presses. These machines are capable of repeatable ram movements of .0001 inches.


The most critical part of the paint process is the wash. We use phosphoric acid to clean and prepare the steel so the paint will properly adhere.

We have partnered with Axalta to provide all of our paints. These paints cure though a heating process. The finished product is a durable paint that will withstand time.


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Our foam cutter is programmed to make precise cuts to our exact specifications.

We use half inch high temp melamine and one inch polyurethane foam. The adhesive can uphold in -45 up to +170 degrees. The high temp melamine foam is used around all components that radiate heat. This maintains safety of the unit.

You can get more information on our housing here.


The Return of the PSS40

We are closing up the gap in our liquid-cooled, gaseous generators; by adding the PSS40 and PSS45.

Meet The New PSS Units

As WINCO continues to grow, we are dedicated to provide a bigger offering of power nodes. We saw an opportunity to not only bring back the PSS40, but also offer a PSS45.


Standard auxiliary winding
Standby only


Available in standby
and prime power

  • Window to view the DSE 7310 digital controller
  • Galvanealled steel housing
  • Durable powder coat paint
  • Standard battery charger
  • Cummins industrial generator ends
  • Origin 4.3L engine
  • Conform to UL2200 and CSA standards.

Meet The Origin Engine

We are excited to introduce a new engine partner, Origin Engines. Origin has more than 30 years in the engine industry plus the years of the founder’s early interests in high-performance engines.

We are using a prime rated, Origin 4.3L engine on the PSS40 and PSS45. This engine is based on the GM 4.3L that we are all used to. Another familiar design feature is the ECU and connections. The ECU is built by E Controls.

Origin Engines are built from the block, up. Their engines are built for the industrial market. Which provides engines that won’t change unless the power generation industry needs it to, not the car industry.


Just like the rest of our liquid-cooled standby units, the Origin engine is EPA Certified.


The Origin 4.3L is a prime rated engine. Simply add a catalyst to bring the generator set to a prime source of power.

Are you ready to check out the new units? Click here to see specs on the PSS40 or click here for the PSS45.

We are continually updating and creating new generators. Stay tuned!

– Big Dog

The World of Diesel

New DR35-90 Family in Production!

Our engineers are consistently updating and creating new generator designs. These units go through fine tooth testing to ensure you receive the best and most reliable generators on the market.


Different configurations of the DR45 and DR90 in stock!

62 day average lead time on liquid-cooled units

Find information on all of our diesel standbys here.


A Manual Transfer Switch for GFCI and Bonded Neutral Generators

WINCO portable generators are designed with a bonded neutral, the neutral and ground tied together inside the panel. This allows the generator to be safely used in portable configurations.

Whenever you connect a portable generator to a building’s electrical system the NEC code requires you to brake the neutral to ground bond on the generator. This creates a new risk if the portable generator is used as both a home back-up and mobile power source since changing the neutral to ground bond should be left to an experienced electrician.

To solve this problem Winco only offers manual transfer switches for our portable generators that are compatible with bonded neutral generators. An additional benefit of these switches is that they also work with our models that provide full panel GFCI protections.

WINCO offers the Reliance XR series manual transfer switches.

The Reliance XR series are three pole manual transfer switches. By switching the neutral these manual transfer switches meet the NEC code allowing direct connection of bonded neutral generators and are compatible with GFCI protected switches.

Circuit Breaker SlotsSingle: 10
Tandem: 18
Single: 10
Tandem: 18

Check out our help topic on which type of transfer switch is right for you.

You can find all of the manual transfer switches we offer here.

I hope you found this helpful!


WL22000VE Circuit Breaker Upgrade

Sometimes, a vender discontinues an item, which happed to us with an 80 amp shunt breaker. This breaker disconnects the power of the Anderson connector when the cover is opened when a plug is not in place on our WL22000VE-03/B model.

We transitioned from the 80 amp to a 100 amp, 80% rated breaker. This change had us increase the wire size to match the new breaker maximum rating.

Let’s compare the WL22000VE-03/B with the new version, the WL22000VE-03/C.

EngineB&S Vangurd 993CCB&S Vangurd 993CC
Running Watts19,000
Running Amps @24079.2 79.2
Main Line Circuit Breaker80 Amps100 Amps
Est. Run Time4.5 Hours4.5 Hours
Motor Starting6 HP6 HP
Receptacles(2) NEMA 5-20 20A 120V
(1) CS6365 50A 120/240V
(1) NEMA L14-30 30A 120/240V
Anderson Connector 120A 120/240V
(2) NEMA 5-20 20A 120V
(1) CS6365 50A 120/240V
(1) NEMA L14-30 30A 120/240V
Anderson Connector 120A 120/240V

The costs will remain the same going forward. We still offer the WL22000VE-03/A with the GFCI protected panel with split distribution for customers that do not need all of their output from one receptacle. This product remains unaffected.  

Please evaluate your installation practices for compatibility with this change.  

Have questions on circuit breakers? Check out our circuit breaker help topic here.