The 1948 Sportsman coil is pn 375189 and the 1949-’51 coil is pn 580084. Turns out that they are interchangeable. They are in many motors such as some or all models of these: Evin Sportsman ’42-’51, Sportwin ’48-’51, Ranger ’46-’47, ’49 Sportster, Sea Kings many frrom ’41-’50, Hiawatha ’41-’48, Brooklure ’50, Sea Bee ’48-’50, Western Flyer ’41-’42, Royal 1A5 – 2A3, Bucaneer 1B10 – 1B9 – 2B7