Seller notes

You are purchasing one pair of reproduction cylinder head primers. These were used on JD models from 1914 until 1938 or 1939 on Knuckleheads and UL models that had the primer boss drilled and tapped. Used on all JD, Single, VL, RL, and early Servicars I'm not sure about early WL models.. Uses a 1/8"-27 thread as original x 7/16" long. Original primers were brass and this is the 1930 and up version as it has a recess machined into the top. This is a nice little detail item for your vintage ride. ...

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