Plan Your Trip for 2026! Come see us in person Sept 11-13 2026, in Andover, South Dakota! Daily steam talks, 150 Case rides, official 150 Case merch, and more!

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overview

THE 150 HP CASE IS THE LARGEST STEAM TRACTION ENGINE EVER PRODUCED. Built originally in 1905, zero of them ever lived on – until recreated from scratch in 2018 by Kory Anderson.

The journey of the multi-year build was followed by more than 10,000 followers on Facebook and eventually led to more than 20+ MILLION views on YouTube with his legendary “engine pull” in September 2019 at the Western Minnesota Steam Threshers Reunion (WMSTR) in Rollag, Minnesota, followed by the 2022 historic 50-bottom pull in Andover, SD. This site is a place for steam engineers and hobbyists to learn more about bringing the 150 Case to life.

engine specifications:

35 tons weight loaded || 180 PSI boiler pressure || 200 RPM engine operating speed

Engine Bore	14 in	Engine Stroke	14 in
Flywheel	50 in	Power Steering	Yes
Length	25 ft	Width	14 ft
Height	14 ft	Weight Loaded	75,000 lbs
Speed Low	2.64 mph	Speed High	5.69 mph
Coal Tender	6,000 lbs	Water Tender	650 gallons
Firebox Length	58.25 in	Firebox Width	39.25 in
Firebox Height	45.5 in	Boiler Barrel	42 in diameter
Flue Diameter	2 in	Flue Length	108.5 in
Flue Number	93	Boiler Pressure	180 psi

“Billy the Lost Boiler”

"#1 Hot New Release" on Amazon! Join Billy as he discovers his purpose as the heart of the world's biggest steam traction engine, alongside the Iron Warrior! Based on a true story of Kory Anderson and the 150 Case. Rooted in faith with lessons of the skilled trades! The perfect gift for your littles! Every book benefits the Iron Warrior Academy non-profit!

Check out these awesome 150HP Case videos:

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Coming soon: Kory will be launching “The 150 Difference”, a daily guide book inspired by the build of the 150 Case. It incorporates important habits recommend for people to unlock their true potential. 150 Days. 150 Degree Difference in your life. Do you have what it takes?