valve stem collet set - M10 (keeper) Replacement When rebuilding your cylinder head, new valve collets are a nice way to go. This is a complete replacement set for your M10 engine (16pcs). Price: $16.19   Quantity to Add:   CONTACT US AT BMWSALES@2002AD.COM 1-800-4-2002AD 909-629-1955 outside of the USA COPYRIGHT © 2002 AD, ALL RIGHTS RESERVED.