Seller notes

This is a brand new set of TWO (2) aftermarket standard size 1-3/4" diameter black nitride replacement exhaust valves for Harley big twin panhead and shovelhead motors from 1948 through 1984. Fits all Harley models that use HD part #s 18082-57A or 18086-80. These valves are marked with the later 18086-80 part number because they are the later style nitrided valves rather than plain steel valves. 1980 is when Harley started spec-ing out nitrited valves from their suppliers to handle the unleaded ...

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