Iron Sportster bill of material


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Frame

The Sportster frame is made of steel tubes that connect to steel castings or forgings, or weldments after 1982. The Iron Sportster has 4 distinct frames.
  1. The early frame, 1952 to 1976, with both a kick- and electric-start version, K-model versions (1952-1956) have no flat above where the rear cylinder head sits.
  2. The sump motor frame, 1977 and 1978, no footpeg mounts, they go on engine.
  3. The triangulated frame 1979 to 1981.
  4. The modern frame, 1982 to 1984.
The part numbers are:
47014-52 52-53 K
47014-52A 54 K
47014-52B 55 56 K
47014-56 57-64 XL, XLH
47014-58 58-65 XLCH
47014-65 65 XL, XLH
47014-56A 66 XL, XLH
47014-66 66-67 XLCH
47014-67 67 XL, XLH
47014-66A 68-69 XLCH
47014-67B 68-71 XL, XLH
47014-70A 70-71 XLCH
47014-70B 72 XL, XLH, XLCH
47014-73 E73-76 XL, XLH, XLCH
47006-73 L73 XL, XLH ,XLCH
47012-78 77-78 XLH XLCH includes cups
47001-78 77 XLCR
47265-79 79 no oil filter
47265-80 80-81 oil filter on frame
47265-81A 82 XL XLS
47292-83 83-E84 (before evolution engine)
47150-84 L84-85 (perhaps clutchernator and/or Evo engine)

Thanks to http://www.harleykmodel.com/technical/