Linkert M53A
3 line, 2-418, 1954 K MODELS? This carburetor has no verified documentation that it was ever installed on a H-D factory production K MODEL, however no one knows for sure and was most likely used on factory racing. The Linkert Company blueprints for H-D has it assembled with a double or duel verturi often referred to as a Bombsite venturi.
See page: Mechanics Reference pages