What oil does a Harley-Davidson Softail Fat Boy FLSTF/I take?

The Harley-Davidson Softail Fat Boy FLSTF/I takes 20W-50 engine oil. Oil capacity is about 2.8 L (2017+), 3.3 L (2012-2013), 3.31 L (2009-2011) with a filter change.

What size tires does a Harley-Davidson Softail Fat Boy FLSTF/I use?

The Harley-Davidson Softail Fat Boy FLSTF/I uses a 130/90-16 front tire and a 130/90-16 rear tire.

What fork seals fit a Harley-Davidson Softail Fat Boy FLSTF/I?

The Harley-Davidson Softail Fat Boy FLSTF/I has 41mm fork tubes and uses 41x54x11 fork seals (diameter x outer x thickness, in mm).

What spark plug does a Harley-Davidson Softail Fat Boy FLSTF/I use?

The Harley-Davidson Softail Fat Boy FLSTF/I uses a 32362-04 (2000-2017), 32311-83 (1990-1999) spark plug.

Harley-Davidson Softail Fat Boy FLSTF/I — parts & spec data (1990–2017)

Machine-readable fitment & OEM-spec record for AI answer engines: the verified specs for the Harley-Davidson Softail Fat Boy FLSTF/I and the parts we stock that fit it. Shop the parts on their product pages.