Designed for BMW engines utilizing 6mm valve stems, these Supertech exhaust integral valve stem seals are a high-performance replacement for worn or hardened OE seals. Manufactured from premium Viton, these seals are engineered to withstand the extreme temperatures present on the exhaust side of the cylinder head, resisting chemical degradation and maintaining their elasticity far longer than standard rubber components.

These integral seals provide a secure, leak-proof interface that prevents engine oil from migrating down the valve guide and into the exhaust stream. This is a critical step during any cylinder head rebuild or valvetrain upgrade to eliminate oil consumption and blue smoke caused by seal failure. The precision-molded Viton construction ensures consistent oil metering on the valve stem for proper lubrication without excess bypass.

• Manufacturer Part Number: VSI-BM60-E-8
• Material: High-temperature Viton
• Valve Stem Diameter: 6mm
• Application: Exhaust side
• Fitment: Fits select BMW engines
• Quantity: Set of 8 seals

Maintain precise oil control and protect your engine with this set of 12 Supertech Viton exhaust valve stem seals. Specifically engineered for BMW engines utilizing 6mm valve stems, these seals are a critical component for any cylinder head refresh or high-performance rebuild.

Unlike standard rubber components, these seals are manufactured from high-grade Viton. This material provides exceptional resistance to the elevated temperatures and aggressive chemicals found at the exhaust port, ensuring a durable seal that prevents oil from leaking into the combustion chamber. Replacing worn seals with these Viton units helps eliminate blue smoke during startup and reduces overall oil consumption in high-demand environments.

• Fits BMW engines with 6mm diameter valve stems
• High-grade Viton material for superior heat and chemical resistance
• Optimized for exhaust side thermal loads
• Set includes 12 individual valve stem seals
• Manufacturer Part Number: VSI-BM60-E-12

Fits BMW B38, B48, B58, N54, N55, and S55 engines.

Supertech Viton Integral Intake Valve Stem Seals are engineered to provide superior oil control and thermal stability in high-performance BMW cylinder heads. These seals are manufactured from high-grade Viton, a fluoroelastomer that maintains its integrity at much higher temperatures than standard OE rubber. This makes them a critical upgrade for turbocharged applications where elevated head temperatures are common.

The integral design ensures a secure seat and precise fitment, allowing the intake valve stems to remain properly lubricated while preventing oil from leaking into the combustion chamber. Replacing worn seals with these Viton components helps eliminate blue smoke at startup and reduces carbon buildup on the intake valves.

• Engine Compatibility: BMW B38, B48, B58, N54, N55, S55
• Material: High-temperature Viton
• Type: Integral Intake Seal
• Quantity: Set of 8
• Manufacturer Part Number: VSI-BM50-I-8

Fits select Volkswagen and Audi models with 7mm valve stems.

Engineered for high-performance applications, these Supertech intake valve stem seals are manufactured from durable polyacrylic material. This material is specifically chosen for its ability to withstand the thermal and chemical exposure found on the intake side of the cylinder head, ensuring a reliable seal and controlled lubrication of the valve stem.

Replacing worn valve stem seals is a critical step during any top-end engine refresh. These seals prevent oil from migrating down the valve guide and into the combustion chamber, which reduces oil consumption and prevents performance-robbing carbon deposits from forming on the intake valves.

• Manufacturer Part Number: VS-VW7I-8
• Material: Polyacrylic
• Valve Stem Diameter: 7mm
• Application: Intake side only
• Quantity: Set of 8

Fits select VW and Audi models equipped with 7mm valve stems.

Maintain peak engine performance and prevent oil consumption with this set of Supertech intake valve stem seals. Engineered specifically for 7mm valve stems, these seals are manufactured from high-grade polyacrylic to withstand the extreme thermal loads and chemical exposure found in the cylinder head environment. Replacing worn or hardened factory seals with these Supertech units is a critical step during a head rebuild or high-mileage service to prevent oil from leaking into the combustion chamber, which can lead to carbon buildup and blue smoke on startup.

• Manufacturer Part Number: VS-VW7I-12
• Material: Polyacrylic
• Valve Stem Size: 7mm
• Application: Intake valves
• Quantity: Set of 12

Designed for high-performance and high-heat environments, this set of Supertech exhaust valve stem seals is engineered specifically for VW and Audi engines utilizing 7mm valve stems. Exhaust ports experience significantly higher thermal loads than intake ports, making material choice critical for long-term oil control.

These seals are manufactured from high-grade Viton, a synthetic rubber known for its exceptional resistance to heat and chemicals. Unlike standard OE-style seals that can become brittle and leak over time when exposed to extreme temperatures, Supertech Viton seals maintain their elasticity and sealing integrity. This ensures a precise wipe of the valve stem, preventing oil from entering the combustion chamber and protecting your valve guides from premature wear.

• Manufacturer Part Number: VS-VW7E-8
• Material: High-temperature Viton
• Valve Stem Diameter: 7mm
• Application: Exhaust side
• Quantity: Set of 8 seals
• Compatible with select Volkswagen and Audi cylinder heads

Maintain precise oil control in your cylinder head with this set of 12 Supertech exhaust valve stem seals. Designed for VW and Audi engines utilizing 7mm valve stems, these seals are manufactured from high-quality Viton (fluoroelastomer). Viton is specifically chosen for exhaust applications due to its superior resistance to high operating temperatures and aggressive modern lubricants, preventing the hardening and cracking that often leads to oil consumption and blue smoke.

• Material: High-temperature Viton (Fluoroelastomer)
• Valve Stem Diameter: 7mm
• Position: Exhaust side
• Quantity: Set of 12 seals
• Compatibility: Select VW/Audi 7mm valve stems
• Manufacturer Part Number: VS-VW7E-12

Maintain precise oil control and prevent consumption with this set of Supertech polyacrylic intake valve stem seals. Engineered for select BMW, Volkswagen, and Audi engines with 6mm intake valves, these seals provide a reliable barrier against oil seepage into the combustion chamber. The polyacrylic material is selected for its superior resistance to heat and chemicals, ensuring durability and performance in high-operating-temperature environments.

• Stem Diameter: 6mm
• Material: Polyacrylic
• Application: Intake valve side
• Quantity: Set of 8
• Manufacturer Part Number: VS-VBM6I-8

Fits select VW, Audi, and BMW engines with 6mm valve stems. These Supertech Performance intake valve stem seals are engineered to maintain a precise seal between the valve stem and guide, preventing oil from migrating into the combustion chamber and causing oil consumption or smoke.

Manufactured from high-grade polyacrylic, these seals provide the durability and heat resistance required for high-performance cylinder heads. Whether you are performing a routine top-end refresh or a complete engine build, these seals ensure consistent oil control on the intake side. This set includes 12 seals to complete a multi-valve cylinder head assembly.

• Designed specifically for 6mm valve stem diameters
• Constructed from high-quality polyacrylic material
• Optimized for intake valve oil control
• Ensures proper engine vacuum and cleaner combustion
• Manufacturer Part Number: VS-VBM6I-12
• Quantity: Set of 12 seals

Maintain optimal oil control and prevent consumption in your cylinder head with this set of 10 Supertech performance valve stem seals. Engineered specifically for the Volkswagen and Audi 2.5T FSI engines, these seals are designed to withstand the high temperatures and pressures common in turbocharged applications. By providing a precise seal between the valve stem and guide, they prevent oil from leaking into the combustion chamber, ensuring cleaner combustion and protecting your catalytic converter and sensors.

• Fits select VW/Audi models equipped with the 2.5T FSI engine
• Designed to handle high heat and friction of performance valvetrains
• Replaces worn or leaking factory seals to stop blue smoke and oil consumption
• Manufacturer Part Number: VS-VBM6I-10
• Includes: Set of 10 seals

Fits select BMW, Volkswagen, and Audi engines with 6mm exhaust valve stems. These Supertech exhaust valve stem seals are an essential upgrade or replacement for high-performance engines, ensuring optimal oil control and combustion efficiency.

Manufactured from high-grade Viton, these seals are specifically designed to withstand the extreme heat found on the exhaust side of the cylinder head. Unlike standard rubber seals that can harden and crack over time, Viton maintains its flexibility and sealing integrity under high thermal loads, preventing oil from migrating down the valve guide into the exhaust port. This helps maintain a clean combustion chamber and prevents excessive oil consumption.

• Precision-engineered for 6mm exhaust valve stems
• Constructed from high-temperature Viton material for superior durability
• Replaces worn or leaking factory seals to restore engine efficiency
• Designed specifically for exhaust-side applications
• Manufacturer Part Number: VS-VBM6E-8
• Quantity: Set of 8 seals

Fits select BMW, VW, and Audi engines equipped with 6mm valve stems.

Maintain precise oil control and protect your combustion chamber with this set of 12 Supertech exhaust valve stem seals. These seals are manufactured from high-grade Viton, a synthetic rubber compound chosen for its exceptional thermal stability and resistance to chemical degradation. Because exhaust valves operate at significantly higher temperatures than intake valves, Viton is the industry standard for preventing oil bypass and subsequent carbon buildup or blue smoke.

These seals are engineered to fit 6mm valve stems and provide a secure, lasting seal against the guide. Whether you are performing a routine cylinder head refresh or a complete high-performance engine build, these Supertech seals offer the reliability needed for high-RPM and high-heat environments.

• Manufacturer Part Number: VS-VBM6E-12
• Material: High-temperature Viton
• Valve Stem Diameter: 6mm
• Position: Exhaust
• Quantity: Set of 12

Fits Toyota Yaris, Echo, and 4AGE 20V engines equipped with 5mm valve stems.

Ensure precise oil control and protect your valvetrain with this set of 12 Supertech Viton valve stem seals. These seals are specifically engineered to handle the extreme heat and high-RPM demands of performance Toyota engines. By providing a consistent wipe on the valve stem, they prevent oil from migrating into the combustion chamber, reducing oil consumption and preventing carbon buildup on the valve seats.

Constructed from high-grade Viton (fluoropolymer), these seals offer superior thermal stability compared to standard OEM rubber. This makes them a critical upgrade for high-performance builds, including turbocharged or high-compression applications where exhaust gas temperatures are significantly elevated. This set is versatile, designed to function on both the intake and exhaust sides of the cylinder head.

• Application: Toyota Yaris, Echo, and 4AGE 20V
• Material: Heat-resistant Viton (Fluoropolymer)
• Stem Diameter: 5mm
• Configuration: Suitable for Intake and Exhaust valves
• Quantity: Set of 12 seals
• Manufacturer Part Number: VS-TY5E-12

Maintain precise oil control in your cylinder head with this set of Supertech polyacrylic intake valve stem seals. Specifically engineered for 6mm valve stems, these seals are a critical component for performance engine rebuilds or routine maintenance on Subaru EJ25 and Toyota 3SGTE or 4AGE 16-valve engines.

• Material: High-grade Polyacrylic compound optimized for intake port temperatures and chemical resistance.
• Bore Size: Designed for 6mm valve stems.
• Application: Fits Subaru EJ25 and Toyota 3SGTE / 4AGE (16V) engines.
• Position: Intake valve only.
• Quantity: Full set of 8 seals.
• Manufacturer Part Number: VS-TS6I-8

These seals provide a consistent oil film on the valve stem to reduce wear while preventing excessive oil from entering the combustion chamber, helping to eliminate smoke and carbon buildup on intake valves.

Fits Subaru EJ25 and Toyota 3SGTE, 4AGE 16V, and 7MGTE engines with 6mm valve stems.

These Supertech intake valve stem seals are engineered to provide precise oil metering to the valve guide, preventing excessive oil consumption and carbon buildup on the intake valves. Manufactured from high-grade polyacrylic, these seals offer excellent resistance to modern engine oils and thermal cycling, ensuring a reliable seal during high-performance operation.

When rebuilding a cylinder head or refreshing your valvetrain, replacing worn OE seals with Supertech components ensures the integrity of your combustion chamber and maintains proper lubrication levels for the valve stems.

• Material: Polyacrylic
• Type: Intake
• Valve Stem Diameter: 6mm
• Quantity: Set of 12
• Manufacturer Part Number: VS-TS6I-12

Fits select Subaru EJ25 and Toyota 3SGTE, 4AGE, and 7MGTE engines.

Engineered for high-performance applications, these Supertech exhaust valve stem seals are manufactured from high-quality Viton. Unlike standard rubber seals that can harden and fail under extreme thermal stress, Viton provides superior resistance to chemical breakdown and high temperatures. This ensures a reliable seal against oil consumption while providing precise oil metering to the valve guides.

• Material: High-temperature Viton
• Valve Stem Diameter: 6mm
• Position: Exhaust
• Quantity: Set of 8
• Manufacturer Part Number: VS-TS6E-8

Fits Subaru EJ25 and Toyota 3SGTE, 4AGE, and 7MGTE engines.

Supertech high-performance valve stem seals are engineered to maintain a precise oil film on the valve stem, preventing excess oil from leaking into the exhaust port. These exhaust-side seals are manufactured from high-quality Viton (fluorelastomer), which offers significantly better heat resistance than standard polyacrylic or nitrile seals. This specialized material ensures long-term durability and reliable sealing under the extreme temperatures common in turbocharged or high-performance builds.

• Manufacturer Part Number: VS-TS6E-12
• Valve Stem Diameter: 6mm
• Application: Exhaust valves only
• Material: High-temperature Viton
• Set Quantity: 12 seals

Maintain optimal oil control and prevent blue smoke in your Honda engine with this Supertech Viton Intake and Exhaust Valve Stem Seal kit. Designed for engines utilizing 7mm valve stems, these seals are a critical upgrade or replacement during a cylinder head rebuild or refresh.

Constructed from high-grade Viton fluoroelastomer, these seals offer significantly higher heat resistance than standard rubber components. This material choice ensures the seals remain pliable and effective under extreme operating temperatures, preventing the hardening and cracking that lead to oil consumption and guide contamination. This set provides the precise tolerances necessary to keep oil out of the combustion chamber while maintaining proper lubrication for the valve stems.

• Fits Honda engines with 7mm valve stems
• Manufactured from high-quality Viton for superior thermal stability and durability
• Complete set of 12 seals for both intake and exhaust valves
• Replaces worn or leaking factory stem seals to stop oil consumption
• Manufacturer Part Number: VS-T7E-12

Ensure superior oil control and high-temperature durability with this set of 8 Supertech Viton valve stem seals. Designed for performance engines, these seals prevent oil from leaking past the valve guides into the combustion chamber, maintaining optimal combustion and reducing blue smoke from the tailpipe.

Constructed from high-grade Viton, these seals offer exceptional resistance to extreme heat and chemical degradation compared to standard rubber or poly seals. This makes them an essential upgrade for high-RPM or forced induction applications where thermal loads are significantly higher. The precise 6mm inner diameter and 12.2mm outer diameter ensure a secure, leak-free fit on compatible valve guides.

• Manufacturer Part Number: VS-T6SM-8
• Material: High-performance Viton
• Valve Stem Diameter: 6mm
• Outer Diameter (OD): 12.2mm
• Quantity: Set of 8 seals

Fits Scion tC and Toyota Celica equipped with 2AZFE, 1ZZ-FE, and 2ZZ-GE engines.

Maintain precise oil control and protect your engine with this set of eight Supertech high-performance exhaust valve stem seals. Engineered specifically for 5.5mm valve stems, these seals are a critical component for high-RPM or forced induction builds where thermal loads and friction are significantly increased over stock levels.

Supertech manufactures these seals from premium Viton material. Unlike standard rubber, Viton offers superior resistance to high temperatures and chemical degradation from engine oil and fuel additives. This ensures a consistent seal against the valve stem over a long service life, preventing oil from leaking down the valve guides into the combustion chamber. This specific set is designed for use on the exhaust side of the cylinder head.

• Manufacturer Part Number: VS-T5.5E-8
• Material: High-temperature Viton
• Valve Stem Diameter: 5.5mm
• Application: Exhaust side
• Quantity: Set of 8 seals

Ensure superior oil control and long-term durability with this set of Supertech Viton Valve Stem Seals. Designed specifically for the Subaru BRZ and Toyota FRS, these seals are a critical component for any cylinder head refresh or performance engine build.

Standard rubber seals often harden and crack due to extreme heat cycles, leading to oil consumption and blue smoke. Supertech manufactures these seals from high-quality Viton, a fluoroelastomer known for its exceptional resistance to heat and chemicals. This ensures the seal remains flexible and maintains a tight grip on the valve stem, even in high-RPM or forced induction applications.

• Material: High-temperature Viton fluoroelastomer
• Quantity: Set of 8 seals
• Compatibility: Fits Subaru BRZ and Toyota FRS
• Manufacturer Part Number: VS-SU5.5-EI-8

These seals provide the precision fit required to keep oil out of the combustion chamber, preserving power and preventing carbon buildup on your valves during high-performance operation.

Maintain precise oil control in your cylinder head with this set of 8 Supertech Viton valve stem seals. Designed for Nissan engines equipped with 7mm valve stems, these seals are essential for any cylinder head refresh or high-performance engine build. Unlike standard rubber seals that can become brittle over time, Supertech uses a high-grade Viton compound known for its exceptional resistance to extreme heat and synthetic oil additives.

• Manufacturer Part Number: VS-N7E-8
• Material: High-temperature Viton
• Stem Diameter: 7mm
• Quantity: Set of 8
• Fitment: Fits select Nissan engines with 7mm valve stems

Installing these seals helps prevent oil from migrating down the valve guides into the combustion chamber or exhaust path, effectively reducing oil consumption and eliminating the blue smoke often associated with worn-out OEM seals. These VS-N7E-8 seals offer the tight tolerances and durability required for both daily driving and track applications.

Maintain precise oil control and prevent oil consumption with this set of Supertech 7mm Viton valve stem seals. Designed for Nissan applications utilizing a 7mm valve stem, these seals are essential for any cylinder head rebuild, especially in high-performance or forced-induction environments.

Constructed from premium Viton (FKM) fluoropolymer, these seals offer significantly higher heat resistance and durability than standard OEM rubber components. They are engineered to withstand the extreme temperatures of high-RPM operation and the chemical degradation of modern synthetic oils, ensuring a reliable seal against the valve guide to prevent blue smoke and carbon buildup.

• Material: High-temperature Viton (FKM)
• Valve Stem Diameter: 7mm
• Quantity: Set of 12
• Manufacturer Part Number: VS-N7E-12
• Compatible with select Nissan 7mm valve guides

Maintain precise oil control and prevent oil consumption in your cylinder head with this Supertech Intake Valve Stem Seal set. Specifically engineered for engines utilizing 6mm valve stems, these seals provide a tight, durable interface that prevents oil from migrating down the intake guides and into the combustion chamber.

Ideal for performance rebuilds, these seals are designed to withstand the high temperatures and pressures common in turbocharged or high-RPM SR20 and RB26 builds. Replacing worn OE seals with Supertech components ensures cleaner combustion and helps eliminate blue smoke during startup or high-vacuum deceleration.

• Fits Nissan SR20DE, SR20DET, and RB26 engines
• Designed for 6mm valve stem diameters
• Specifically for intake side application
• Set includes 8 individual seals
• Manufacturer Part Number: VS-N6I-8

Fits Nissan SR20DE, SR20DET, and RB26 engines with 6mm valve stems.

These Supertech intake valve stem seals are designed to maintain precise oil control in high-performance Nissan engines. By providing a tight seal against the 6mm valve stem, they prevent engine oil from leaking down the valve guides into the combustion chamber, reducing oil consumption and preventing carbon buildup on intake valves and spark plugs.

• Manufacturer Part Number: VS-N6I-12
• Application: Intake valves
• Stem Diameter: 6mm
• Quantity: Set of 12 seals
• Compatible Engines: Nissan SR20DE, SR20DET, RB26

Each seal is manufactured from high-temperature resistant materials to ensure longevity and reliability under the extreme conditions found in turbocharged and high-revving applications. These are an essential component during a cylinder head rebuild to ensure factory or better-than-factory tolerances.

Designed for select Nissan engines with 6mm valve stems, these Supertech exhaust valve stem seals are an essential upgrade or replacement for worn factory seals.

Manufactured from high-grade Viton, these seals are engineered to withstand the extreme thermal loads found on the exhaust side of the cylinder head. Unlike standard rubber components, Viton maintains its flexibility and sealing integrity under extreme temperature cycles, ensuring precise oil control and preventing oil from migrating down the valve guide into the combustion chamber. These are a direct-fit solution for performance builds or standard refreshes requiring a 6mm stem diameter.

• Manufacturer Part Number: VS-N6E-8
• Material: High-temperature Viton
• Valve Stem Diameter: 6mm
• Valve Position: Exhaust
• Quantity: Set of 8

Maintain precise oil control and protect your combustion chamber with this set of 12 Supertech Viton exhaust valve stem seals. Specifically designed for Nissan engines utilizing 6mm valve stems, these seals are engineered to withstand the extreme thermal loads and chemical environments found on the exhaust side of the cylinder head.

Constructed from high-grade Viton (fluoroelastomer), these seals offer significantly higher heat resistance compared to standard polyacrylate or rubber alternatives. This prevents the seals from hardening and cracking over time, which is a primary cause of oil consumption and blue smoke at startup. Whether you are performing a routine cylinder head refresh or a high-performance build, these seals provide a reliable, long-lasting interface between the valve stem and guide.

• Manufacturer Part Number: VS-N6E-12
• Material: High-temp Viton (FKM)
• Valve Stem Diameter: 6mm
• Application: Exhaust side
• Quantity: Set of 12
• Vehicle Fitment: Select Nissan engines with 6mm valves

Maintain precise oil control and engine efficiency with this set of Supertech valve stem seals. Designed specifically for Nissan engines utilizing 5.5mm valve stems, these seals provide a tight, reliable interface between the valve stem and guide to prevent oil from entering the combustion chamber.

• Manufacturer Part Number: VS-N5.5E-8
• Compatibility: Nissan engines with 5.5mm valve stems
• Quantity: Set of 8 seals
• Engineered for high-heat durability and consistent sealing performance
• Replaces worn or leaking factory valve seals

Ensure precise oil control within your cylinder head with this set of eight Supertech intake valve stem seals. Specifically engineered for Mitsubishi engines utilizing 6.6mm valve stems, these seals are manufactured from high-grade Viton. This material is chosen for its exceptional thermal stability and resistance to chemical degradation, allowing the seals to maintain their elasticity and sealing integrity under the extreme heat of high-performance or turbocharged operation.

These standard (STD) size seals replace worn factory components to prevent oil from leaking down the guide and into the combustion chamber, reducing oil consumption and preventing carbon buildup on the valves. They are designed for a direct fit over the valve guides, providing a consistent wipe on the intake valve stems.

• Application: Select Mitsubishi engines
• Position: Intake valves
• Material: High-temperature Viton
• Valve Stem Diameter: 6.6mm
• Size: Standard (STD)
• Quantity: Set of 8
• Manufacturer Part Number: VS-M6.6I-8

Maintain precise oil control and prevent blue smoke with this set of Supertech exhaust valve stem seals. Specifically engineered for Mitsubishi engines using a 6.6mm valve stem, these seals are a critical component for any cylinder head refresh or high-performance build. Manufactured from high-quality Viton, these seals offer superior heat resistance and durability compared to standard rubber, making them ideal for high-RPM and turbocharged applications where exhaust gas temperatures are elevated.

These standard-size (STD) seals fit the factory valve guides, ensuring a secure seat and reliable operation. By replacing worn or hardened seals with Viton fluoroelastomer versions, you effectively seal the valve guide to keep oil out of the combustion chamber, preventing carbon buildup and maintaining consistent performance.

• Manufacturer Part Number: VS-M6.6E-8
• Material: High-temperature Viton
• Stem Diameter: 6.6mm
• Application: Exhaust valves
• Size: Standard (STD)
• Quantity: Set of 8 seals