Harley Evolution Big Twin Inner Rocker Cover Set (OEM Casting #17507-85)
Original Factory castings with OEM numbers present on the interior of each cover. All machined holes have good, straight threads. Chrome still shows bright, but there minor blemishes and light finish wear.
Factory references show OEM Part #17521-84B, correct for use 1984 to as late as 1991 on FLT and FXR models. In 1992, a new part number was used. Same part number is indicated for front or rear use.