Availbable for most applications ranging from automotive to off road dirt bikes. Valve stem seals are defined first by the actual measurement of the valve stem OD itself then by the guide OD. Proper seal height and width will be determined by valve spring clearance. Sold in packs of sixteen. PartNumber : cg3164V Description : Ring & Band Valve Stem Seal; Single Seal StemOD : 8.0mm GuideOD : 12.3mm Material : Viton OD : 17.0mm Height : 12.0mm Uncategorized::Uncategorized