S&S CYCLE Thread Reducer — 1/2"-13 to 5/16"-18, Silver – 16-22 Sportster

The Thread Reducer provides a secure solution when installing carburetor support brackets on '93-'99 Harley-Davidson cylinder heads. 🔩

Use it to convert an existing 1/2"-13 threaded hole down to 5/16"-18 for proper mounting alignment.

• Fits '93–'99 Harley-Davidson cylinder heads that require 5/16"-18 mounting bolts for the carburetor support bracket.
• Reduces a 1/2"-13 threaded hole to 5/16"-18.
• Made in the USA.

Install per factory torque specs and confirm bolt engagement before final assembly.