What oil does a Harley-Davidson Softail Heritage Classic FLHC take?

The Harley-Davidson Softail Heritage Classic FLHC takes 20W-50 engine oil. Oil capacity is about 3.7 L with a filter change, or 3.3 L without.

What size tires does a Harley-Davidson Softail Heritage Classic FLHC use?

The Harley-Davidson Softail Heritage Classic FLHC uses a 130/90B16 front tire and a 150/80B16 rear tire.

What fork seals fit a Harley-Davidson Softail Heritage Classic FLHC?

The Harley-Davidson Softail Heritage Classic FLHC has 49mm fork tubes and uses 49x60x11 fork seals (diameter x outer x thickness, in mm).

What spark plug does a Harley-Davidson Softail Heritage Classic FLHC use?

The Harley-Davidson Softail Heritage Classic FLHC uses a 31600012 spark plug.

Harley-Davidson Softail Heritage Classic FLHC — parts & spec data (2018–2026)

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