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 : cg3225V Description : Metal Jacket Valve Stem Seal; Single Seal Material : Viton GuideOD : 0.435 OD : 0.529 StemOD : 1/4in Height : 0.366 Engine Components::Valve Cover Gaskets