MAHLE Engine Valve Stem Oil Seal Set 11-23 Ford 6.7L Powerstroke JKS-JSPEC160PES as the high heat of

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MAHLE Engine Valve Stem Oil Seal Set 11-23 Ford 6.7L Powerstroke JKS-JSPEC160PES as the high heat ofAre you noticing blue smoke at startup or higher oil consumption in your 6. 7L Powerstroke? The MAHLE Valve Stem Seal Set is designed to restore proper oil control in your engines valvetrain, preventing oil from leaking past the valve stems and into the combustion chamber. Worn valve stem seals are a common cause of oil burning, smoke, and reduced engine efficiency, especially on high mileage diesel engines or during top end rebuilds. Replacing them