This is the number 1158 bulb with a large globe and dual filaments and the alignment tabs straight across in 6 Volt. This bulb fits original Naco lights, ALA tail lights (Die Cast Housing), and 1950-1956 parking lights CJ3B, CJ5, CJ6, Pick Up Truck, Station Wagon, Sedan Delivery and Jeepster models.

Typically this dual filament bulb fits 1956 and prior. The bulb might also fit other applications but you will have to check per application.