Intake Valve Stem Seals 5mm SuperTech for BMW N54 N55 S55 B58 1pcs

High-Performance Intake Valve Stem Seals for BMW B58B30

Supertech Valve Stem Seals are engineered to deliver maximum oil control and longevity for the intake side of the cylinder head. Built with advanced materials and tight production tolerances, these seals are ideal for high-performance engines that operate at elevated temperatures and RPMs.

Designed to fit BMW B58B30 configurations, each seal supports optimal valve movement while preventing oil intrusion into the combustion chamber. With high resistance to heat and wear, they are trusted by builders and racers worldwide.

This product supports a 5mm valve stem, fits valve guides with a [Guide OD] outer diameter, and has a [Seal OD] outer diameter for precise seating and sealing.

Features

• Precision-fit for BMW B58B30 applications
• Designed for use on the intake valve side
• 5mm valve stem compatibility
• [Guide OD] guide fitment | [Seal OD] seal OD
• Constructed from high-temperature, oil-resistant compounds

Benefits

• Improves oil control at high RPM and boost
• Reduces wear and extends valve train life
• Prevents oil burning and carbon buildup
• Perfect for high-performance street and race builds

Specs

• Stem Diameter: 5mm

Engines

• BMW B38B15
• BMW B48
• BMW B58B30
• BMW N54 Turbo
• BMW N55 Turbo
• BMW S55 Turbo
• Mini B38
• Mini B48
• Toyota B58B30

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