RIGHT TYPE -- Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals QUALITY MATERIALS -- Each valve stem seal features materials based on the specific application for your vehicle repair ENGINEERING EXPERTISE -- Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing INSTALLATION AID -- Installation tool included to protect inner lip of seal from damage during seal installation COVERAGE -- Available for domestic and foreign nameplate vehicles