S&S Valve Seats

7 products — part of all Valve Seats

S&S valve seats for Harley-Davidson provide the precision sealing surfaces against which your intake and exhaust valves close — components that must maintain geometry and hardness through thousands of heat cycles and millions of valve events. A worn or damaged valve seat causes compression loss, poor idle, reduced power and fuel economy — symptoms that worsen progressively until a proper seat replacement is carried out. S&S machines their Harley-Davidson valve seats from hardened materials suited to both leaded and unleaded fuel environments, covering the seat angles and diameters used across the Big Twin and Sportster engine families. Correct seat installation requires professional equipment, but sourcing quality seats from S&S ensures the work is not compromised by substandard materials. Iron City Motorcycles, your authorised Harley-Davidson dealer in Leeds, stocks S&S valve seats. Browse the full S&S Valve Seats range below.