Fel-Pro(R) gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.. RIGHT TYPE -- Valve stem seals designs are application-specific for the repair occasion using either deflector (umbrella) seals, O-ring style or positive seals. ENGINEERING EXPERTISE -- Parts are reviewed, validated and approved by Fel-Pro engineers through rigorous research, development and testing. QUALITY MATERIALS -- Each valve stem seal features materials based on the specific application for your vehicle repair. INSTALLATION AID -- Installation tool included to protect inner lip of seal from damage during seal installation. Fel-Pro 11-17 Ford F-150/Mustang 5.0L Engine Valve Stem Oil Seal Set. COVERAGE -- Available for domestic and foreign nameplate vehicles. FEL-PRO SS 72936 Engine Valve Stem Oil Seal Set for Ford F-150. Engine Valve Stem Oil Seal Set. Valve Stem Seal Set

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