I bought a similar-looking cable for less and returned it because it didn't fit. This one is OEM-grade. In the long run it's worth it to pay more, do the job once and right.

Needed Generator ASAP - and received everything on time. Great product as well. Recommend purchasing with National Supply.

Everything went as expected. Order was straight forward. Generator arrived when it was supposed to and arrived in perfect condition. I’ve only used it a few minutes to make sure it worked. If anything changes I’ll update my review.

Excellent service and communication.

The cable works fine. I am dissapointed that the original cable failed. However National Supply is 5 stars for service!

Everything shipped quickly and at a good price. I will use them again.

Shipping was slow and I wasn’t allowed to apply the $50.00 promo offered on the website to my order.

Great cover, good fit and adequate protection needed when not in use :)

I ordered the generator in July of 2023, it arrived destroyed by the shipping company. National Supply got a replacement shipped and delivered asap! Been installed since September and has worked perfect with multiple events for its use. GREAT Generator, Excellent customer service staff. I will be a repeat customer when the time comes!

Yamaha Fuel Med RX adds life to your combustion chamber so buy MED RX.

If your gonna use a Yamaha Inverter Gen., why not use the best for your investment.
R L

We are still awaiting our generator unfortunately. Shipping issues. We are holding out hope!

National Supply had a good price and was easy to work with. Shipping was quick. The generator is very well built and runs wonderfully.

Bought a cabin in the Sierra last year and after numerous outages, one over 24 hours long, I decided to get a generator. Question was whether I buy a stand by whole house generator or a portable generator. My neighbors convinced me that a portable generator would be the better option. After some research and recommendations I decided the Yamaha isde6300 from National Supply was the way to go.
Their website indicated that if the delivery address was not the same as the billing address I should expect a confirmation phone call which I got soon after I completed the order. The customer rep was professional, friendly, and apologetic about having to make the call explaining that this was to try to avoid fraudulent purchases. No problem there but a problem arose with the delivery cost. Long story short is that National Supply made it work for everyone. The delivery company Nation Supply works with was very efficient with accommodating my schedule and the delivery guy dropped off generator where I asked him to.
The isde 6300 is more than I expected. I was hoping the generator would power up the essentials (fridge, central heating, electric water heater, a few lights and plugs). When I used it the first time, I was able to run the house normally with the power load meter at 2 of 10. I did not run my electric dryer but I think the generator could have handled that too. It’s also very quiet. My wife has very acute hearing and she could barely hear the generator inside the house.
A few things to keep in mind: 1) it’s on the heavy side so maneuvering it is not easy, 2) you will need a flexible funnel to fill the generator with oil, and 3) you need a charger to top off the battery.
My only critique would be that I wished National Supply also sold generator cables for attaching the generator to the power inlet box. Having to buy it from another source is not onerous but the convenience of one stop shopping would be nice.

Bought to use in camper and it runs the air condition just fine