Year-by-Year Guides
Parts Compatibility by Generation
What fits between years.
Harley-validated
Points
- Twin Cam and M8 do not share engine parts
- 2014+ Touring frame has different mounting points
- Pre- and post-2018 Softails are distinct platforms
- Pre-2004 (rigid mount) vs. post-2004 (rubber mount) Sportster
Quick questions
Bad Harley years?
Twin Cam 1999-2006 (cam chain), 2014-2016 Touring (early water-cooled), M8 117 2018-2019 (oil pump).
Best years?
Late Evo (1996-1999), Twin Cam 2007-2013, M8 107 2017+.
Where to dig deeper
- NHTSA Recall lookup by VIN
- HDForums year-specific threads