Oil level bolt

Harley introduced the oil-level bolt in the 1954 primary cover. You add oil to the primary until oil comes out the hole plugged by this bolt.

3728		CAD Blueprint
3728	1/4-20 x 1/2 hex head bolt, correctly marked CP 1038.
3720
3720	1/4-28 x 7/16 hex head bolt, correctly marked CP 1038.
1435W
1435W	Screw, 1/4"-20 x 3/4" Phillips head.
2420
2420	Screw, 1/4"-20 x 3/4" Pozidriv truss head.

3728