S&S Thread Reducer For Harley Evo 1993-1999
  • S&S Thread Reducer For Harley Evo 1993-1999

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S&S Thread Reducer For Harley Evo 1993-1999 Videos

S&S Cycle Thread Reducer For Harley Evo

These thread reducers are used on late-model Evo cylinder heads when installing a carburetor support bracket that requires 5/16"-18 mounting bolts.


  • Reduces a 1/2"-13 threaded hole to 5/16"-18
  • Made in the USA
  • Sold each

Fitment Notes & Exceptions

This is a universal fit part; it may or may not fit without modification.

  • Two reducers are required per engine
Product Style RevZilla Item # Manufacturer Product # Availability
S&S Thread Reducer For Harley Evo 1993-1999 957581 50-8151 In Stock: Ships within 24 hours


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