Valves Collars

26 products

Valves Collars for Harley-Davidson sit between the valve spring and the cylinder head, providing a stable seat for the spring and ensuring even pressure distribution. Correct collars are essential for maintaining proper valve-train geometry, especially when upgrading to aftermarket cams or springs. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, offers valve collars from Manley, MCS and Andrews for Big Twin, Sportster and Twin Cam engines. Whether you are building a high-performance top end or replacing worn collars during a head refresh, these precision-machined components ensure your valve springs operate at the correct installed height. Browse the full range below.