A great four cylinder KW ignition system high bar magneto. Mag is in very nice original condition. We cleaned it up and spun it over… Has good spark and seems to have hot and good drag. Hard to tell exactly, but magneto is either a model number 33730 or 83730. Please see pictures more detail. No visible cracks, breaks or welds in metal or brass. The splitter bar is cracked and missing corners of cylinders 3 and 4. Porcelain cap is present and not cracked. Most likely fits an early Antique prairie tractor, hit miss motor, holt, Harris, caterpillar, Minneapolis case, thresher, combine or other collectible tractors. Not exactly sure what this one will fit so please see pictures for more information. This is a barn find unit, so I do not know the history of it at all. What you see is what you get. Last picture is one like this on a friend of mines Harris thresher motor. The item “KW Antique Prairie Tractor, Hit And Miss, Thresher, Combine Engine Magneto Hot” is in sale since Tuesday, March 27, 2018. This item is in the category “Business & Industrial\Light Equipment & Tools\Stationary Engines\Parts”. The seller is “halem23″ and is located in Carmel, California. This item can be shipped to United States.