1975 International 1566 Row Crop Turbo Diesel
Lot Number: 26
Time Remaining: 145d 13h 42m
Current Bid: $5.00
Start Time: 04/04/2026 08:00 AM Central
End Time: 09/22/2026 06:00 PM Central
Bid Count: 1
Location: Vanwhye Farms, Pine Island, MN 55963
Tachometer shows 6287 hours.
Serial number: 2650125U011769.
The International 1566 is a large row-crop tractor produced from 1973 to 1976. It’s powered by a turbocharged 6-cylinder diesel engine producing around 150 PTO horsepower, designed for heavy tillage, planting, and large-scale farm work. The 1566 features a gear or power-shift transmission, 540/1000-RPM PTO, strong hydraulics, and a durable frame, making it a powerful, reliable, and versatile tractor for demanding agricultural tasks.
Runs and drives. Sheet metal is fairly straight, paint has some scratches and blemishes. Front tire size 11.00-16, rear tire size 20.8-38. Tires have good tread and only a small amount of weather cracking. Tractor has headlights, fenders, rear work lights, power steering, 3 point hitch (missing top link), 1000 PTO, drawbar, and 2 remotes. There is a John Deere ladder in place of the factory steps. Tractor appears to have had a cab originally. The front end has been repainted and the fenders have diamond plate where the lights mount.
This tractor was purchased on the Jack Mader estate auction in 2020 in Madison, SD. Mr. Mader was a midwest legend in stock car racing and tractor pulling. Danny Anderson installed a heavy duty TA and a double disk clutch along with a new camshaft. Dynoed at 285 HP. We used it for tractor pulling in Farmstock class only. It is all set p for higher HP classes with fuel pump changes but we were content staying in Farmstock 12,500 – 14,500lbs class. We did well in our class!
Phenomenal International Harvester Auction
The Largest Collection of Golden Demonstrators to Sell
NO APOLOGIES Tractors – Incredible Restorations
ALL SELLING AT ABSOLUTE AUCTION
We’re honored to conduct this auction for Randy and Terri Van Wyhe of the most incredible collection of International Harvester Golden Demonstrator tractors on the planet! Randy has went to painstaking lengths to not only restore these tractors to perfection but to also find the provenance and document the authenticity of them. We don’t throw around terms like phenomenal, incredible and perfection lightly. It’s not fluff. This is one of the cleanest, most well restored collections we’ve ever sold. All kept in climate-controlled storage and cared for with stewardship that is seldom seen.
Enjoy this catalog! Not only are the tractors jaw dropping but history and story is just as exciting! There are dozens of photos and videos with each tractor.















































































