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Winco W15PTOS - 15 kW Tractor-Driven PTO Generator (515/540 RPM)

Model:

99840-004

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$2,741.60
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*This product qualifies for Free Shipping anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
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Winco W15PTOS - 15 kW Tractor-Driven PTO Generator (515/540 RPM)
Winco W15PTOS - 15 kW Tractor-Driven PTO Generator (515/540 RPM)
Model: 99840-004
$2,741.60
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Features
Specifications
Reviews
Product Q&A
How-To Articles
Manuals

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Features

Grade

Professional

Style

PTO

Run Watts

15,000 Rated Watts

Surge Watts

18,000
Starting Watts

  • Convert Your Tractor Into a Generator
  • Use your tractor engine to generate electricity
  • Requires 30-HP at the PTO to operate properly (515 rpm)
  • Multiple Applications
  • Generate electricity to power tools on the farm or ranch
  • Backup your home, barn or buildings during a power outage
  • Brushless Alternator
  • Produces clean and safe electricity for sensitive electronics
  • Low harmonic content (<5%)
  • Mainline Circuit Breaker
  • Protects generator and appliances from overload
  • Large Voltmeter
  • Easily monitor your power usage right from your tractor seat
  • Cast Iron Gear Case
  • Rugged, high-quality material designed to weather the outdoors
  • 1-3/8" Six Spline
  • Connect tumbling bar (sold separately) between tractor and PTO
  • Mobility (Sold Separately)
  • Transport your PTO generator with a trailer or 3-point hitch
  • TDM76 - Trailer *Requires SA11310 tumbling bar (Sold Separately)
  • TPH250 - 3-Point hitch *Requires 300228 tumbling bar (Sold Separately)
  • Full power 60A plug ships with the generator
California residents see
Warning: This product can expose you to chemicals including Benzene which is known to the State of California to cause Cancer, and Ethylene glycol (ingested) which is known to the State of California to cause Developmental Harm.
For more information go to: www.p65Warnings.ca.gov

Specifications

Plug Types
NEMA 5-20R (Wall-Type)
NEMA 14-60R
99840-004
specs product image PID-1180
General Information
Product Category
Generator - PTO
Overview
Product Category
Generator - PTO
Weight
255 Pounds
Consumer Warranty
1 Year
Product Style
PTO Generator
Product Length
33 Inches
Product Width
19 Inches
Product Height
20.2 Inches
Additional Model Numbers

W15PTOS, 99840-004

Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Alternator
Brushless
Auto Voltage Regulation
No
Rated Watts
15000 Watts
Surge Watts
18000 Watts
Rated Amps
63 Amps
Voltage Meter
Yes
Tractors HP
30 HP
PTO RPMs
515 RPM
Grade Type
Professional
Plugs
NEMA 5-20R - Wall-Type
1
NEMA 14-60R
1

Reviews

(28)
Winco 99840-004 Reviews & Ratings
Customer Photos and Videos
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+1
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Customer Rating
4.82
(28 Ratings)
5
(23)
4
(5)
3
(0)
2
(0)
1
(0)
Jared, the Generator Expert
Expert Recommended Review
Generator Expert
Review Posted 02/13/2020
This PTO generator offers a 60-amp outlet that allows you to connect to most manual transfer switches.

The brushless alternator, produces clean power at less than 5% THD. This allows you to safely and confidently power sensitive electronics, such as computers and televisions.

As long as you have a tractor with a 30 HP engine, this will meet your needs!
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Verified Buyer
Verified Buyer
Buds Backup
By Alvin C 
Iowa
Purchased 05/09/2024 | 
Review Posted 06/05/2024 
If this generator is half as good as my old one it will be well worth it. My old was built in the 1950s and still works but I thought I should up date and up grade. We will see if I made a smart choice or not.
Alvin C Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
3/5
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Value
4/5
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Pros:
Easy To Use, Price, I'd Buy It Again, Easy To Store
Cons:
None
Verified Buyer
Verified Buyer
Good Generator
By David B 
Kansas
Review Posted 11/15/2022 
Good quality product. No fluctuations in power, which is good for the electronics in the house. Had it set at 122 volts, which was what I had in the house when I flipped the switch, for a test run. It ran the same for several hours, even when an appliance kicked on.
David B Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
Easy To Use, Price, I'd Buy It Again, High Quality
Cons:
None
Verified Buyer
Verified Buyer
Hurricane Ian in Sorrento FL
By MIchael M 
Florida
Review Posted 10/12/2022 
review 3 image 1
Ordered before Hurricane Ian was identified and it was delivered the day before hurricane hit. We lost power for 3 days. I mounted the generator to a sturdy pallet made sure the tumbler bar was level and hooked up to my Deere. Ran like a champ. Kept 2 fridges 2 freezers my well and septic pumps on. I ran it for 3 hours on 6 hours off to conserve fuel. Used only 10 gallons of diesel for 3 days. Saved $1000’s of dollars worth of food. Very grateful it showed up in nick of time. I have since purchased the mounting cart.
MIchael M Recommends This
Was this review helpful?
Rating Breakdown
Features
4/5
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Quality
5/5
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Performance
5/5
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Value
4/5
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Pros:
Easy To Use, I'd Buy It Again
Cons:
Heavy
Verified Buyer
Verified Buyer
Don't Know Yet
By Mike B. 
Liverpool, Texas
Purchased 06/10/2021 | 
Review Posted 08/14/2021 
I don't know yet . I can't find a 60 amp inlet box and plug. They only offer a 50 amp or 30 amp. .Please advise
Mike B. Recommends This
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Expert Response
Winco supplies the 60-Amp NEMA 14-60 Full Power Plug with the generator. It requires a #4 / 4 conductor cord. We suggest using an electrician for the installation.
Jared, the Generator Expert
Jared G.
Generator Expert
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
3/5
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Value
5/5
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Pros:
High Quality
Verified Buyer
Verified Buyer
U.S. Made And High Quality.
By Michael B. 
Sunnyvale, Texas
Purchased 05/28/2021 | 
Review Posted 07/09/2021 
Very functional and well made. Not a whole lot of unneeded bells and whistles.
Michael B. Recommends This
Was this review helpful?
Rating Breakdown
Features
4/5
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Quality
5/5
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Performance
5/5
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Value
4/5
icon-review-marker
Pros:
High Quality, Easy To Use, Id Buy It Again, Easy To Store
Cons:
could use a cycle meter
Verified Buyer
Verified Buyer
15 Kw. I Couldn’t Be Happier.
By David P. 
Liberty Lake, Washington
Purchased 01/19/2021 | 
Review Posted 05/26/2021 
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review 6 image 2
It is a beautiful high quality piece of equipment. My neighbor who is an electrical engineer was very impressed. I chose the tractor generator because I use my tractor frequently and typically generators want to be run frequently.

It weighs 150 lbs. at 77 its too heavy for me to lift so I created a dolly to move it around easily when I back the tractor up to it.

I found that the tumbler did not want to be over 5 degrees out of level when operating so I bought the tumbler and the PTO to attach it and spent time figuring out how to set it up. It runs rock solid on that. Little learning thing however, I have never had a use for my PTO so be sure and slow the tractor engine down before engaging it. OOPS.

READ the book with the machine..
David P. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
High Quality, Easy To Use, Price, Id Buy It Again
Verified Buyer
Verified Buyer
Wow
By Mark L. 
Willis, Texas
Purchased 02/28/2021 | 
Review Posted 05/07/2021 
will last. To my 4100 JD and it would kill the engine when I pulled the pto button but would probably work if it was a clutch pto. Hooked it up to my 55 horse Mahindra and it runs the entire house, well, ac, freezers etc. No worries about power outages now. Let's see what hurricane season has to bring.
Mark L. Recommends This
Was this review helpful?
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
High Quality, Easy To Use, Id Buy It Again, Exceeded Expectations
Verified Buyer
Verified Buyer
Kubota L3200 With W15PTOS
By Warren R. 
Gulfport, Mississippi
Purchased 11/13/2020 | 
Review Posted 02/10/2021 
Great quality PTO generator and no problem driven with my Kubota L3200. I have not applied a full load at this time but I do not anticipate any problems. When driven with my tractor the operation was very smooth and no vibration. I adjusted the engine RPM to achieve proper voltage output. One thing I believe this unit needs is a Hertz meter to verify the proper frequency (60 Hz). This would make it much simpler to adjust output speed because you need (240VAC but speed controls the frequency). This is necessary for the proper operation of A.C. motors such as well pumps, HVAC units (compressors and bower motors, ceiling fans, etc.).
Warren R. Recommends This
Was this review helpful?
Rating Breakdown
Features
4/5
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Quality
5/5
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Performance
5/5
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Value
5/5
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Pros:
High Quality, Easy To Use, Price, Id Buy It Again
Cons:
Hertz meter needed
Verified Buyer
Verified Buyer
Seems To Be A Good Generator So Far
By James W. 
Samson, Alabama
Purchased 07/10/2020 | 
Review Posted 08/04/2020 
I haven’t used it on the house yet but I used around the barn with power tools and it works very well. I am glad I bought it
James W. Recommends This
Was this review helpful?
Rating Breakdown
Features
4/5
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Quality
4/5
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Performance
4/5
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Value
4/5
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Pros:
High Quality, Easy To Use, Id Buy It Again, Quiet
Cons:
Had a bad mixup on free shipping
Verified Buyer
Verified Buyer
PTO Generator With Tumbling Bar And Transfer Switch And Trailer
By Carl L. 
Conroe, Texas
Purchased 04/10/2020 | 
Review Posted 06/05/2020 
After installing generator on the trailer kit it was ready to run and test the generator out with a load. I had qualified electrician install transfer switch. I followed the instructions on prestart checklist and engaged the PTO and started supplying power to home. Electrician checked voltage and it was very steady. Electrician commented that this was a very clean power supply with hardly any fluctuations. We started and stopped power users in the house I.E. dryer, AC and the generator stayed steady and was doing very well. We’re ran it in for an hour and it performed very well.

The only issue on the generator unit was making sure oil level was at right level. Make sure you have the specified gear oil as specified in manual to ensure oil is at right level before starting unit up. The manual says too much or too little oil can damage unit.
Carl L. Recommends This
Was this review helpful?
Manufacturer Response
Hello Carl, we appreciate you for taking time to write a review. We are glad to hear you are happy with your purchase. We will look into ways to improve how to ensure the gearcase oil is at the proper level. Thank you.
Winco
Rating Breakdown
Features
5/5
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Quality
5/5
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Performance
5/5
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Value
4/5
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Pros:
Easy To Store, Steady voltage

Product Q&A

(5)
Expert avatar photo
Product Questions Answered by Jared, the Generator Expert
How much wattage can the 60-amp outlet provide?
Robert 
from Texas 
January 29, 2021
What does auto voltage regulation mean?
David 
from Utah 
January 19, 2021
If the RPM speed determines the frequency, how do you know when you have the proper turning speed from the tractor?
Gary 
from Ohio 
June 06, 2018
I have a Kubota 2920 compact tractor with 29 HP overall and less at the PTO. Am I better off buying the 15kW and not maxing it out or buy a 10kW and have no HP issues but max the generator?
Todd 
from North Carolina 
March 07, 2014
With most 10kW and 15kW PTO driven generators driven at 540 RPM PTO and the Winco 10 and 15kW units driven at 515 RPM PTO, does that mean I could run my Kubota 38 h.p. at a lower RPM for the Winco to operate at full capacity or would my Kubota still have to still run at about the same RPM's as the 540 RPM PTO generators? What would be the difference in the rpm's between the two with my tractor for them to maintain the same load?
Jeff 
from Georgia 
December 09, 2013

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Winco W15PTOS - 15 kW Tractor-Driven PTO Generator (515/540 RPM)
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