Federal Mogul SS73163 Valve Stem Oil Seal Set

The Federal Mogul SS73163 is an application-specific valve stem oil seal set engineered under the trusted Fel-Pro brand. Valve stem seals perform a critical function in engine lubrication — precisely metering the amount of oil that reaches the valve stem as it moves in the valve guide.

Why Valve Stem Seals Matter:

Oil flow past the valve stem must be carefully controlled. Too little oil accelerates stem and guide wear, while too much leads to carbon buildup on valves and pistons, increased emissions, rough idle, catalytic converter degradation, and excessive oil consumption.

Key Features:

• Application-specific design validated for fit, form, and function
• Materials engineered for the specific heat and oil exposure demands of the application — including Viton®, rubber, PTFE, nylon, or steel as required
• Meets or exceeds all original equipment specifications
• Reviewed, validated, and approved by Fel-Pro engineers through rigorous testing
• Installation sleeve tool included (where applicable) to protect the inner lip of the seal during installation
• Available in deflector (umbrella), positive, or O-ring seal designs depending on application

Signs of Failed Valve Stem Seals:

• Blue-white smoke from the tailpipe, especially at cold startup or during acceleration
• Excessive oil consumption
• Carbon buildup on valves causing rough running or misfires
• Check Engine light due to catalytic converter degradation

Federal Mogul's Fel-Pro brand has been the professional installer's choice for engine sealing solutions for over a century, delivering the reliability and precision that engine builders, technicians, and performance enthusiasts depend on.