Twin Power 90-06 Big Twin and XL Keihin CV Carburetor Diaphragm Only

Overview

These membrane seals replace punctured or torn seals on throttle slide vacuum valves fitted to Keihin CV carburetors.

Features

• Essential for carb rebuilds on Evolution and early Twin Cam engines across Softail, Dyna, Touring, and Sportster lines
• Restores vacuum piston operation, eliminating hesitation, bogging, or poor throttle response from worn diaphragms
• Precision-molded rubber construction ensures airtight seal and smooth slide movement
• Sold Individually