Fits select 1962-1989 Chrysler, Dodge, Bristol, and Checker vehicles.

Fel-Pro SS 70537 engine valve stem oil seals provide a critical seal for the valve-to-guide interface, preventing oil from leaking into the combustion chamber where it causes blue smoke, carbon buildup, and increased emissions. Engineered specifically for the "repair environment," these seals are designed to perform reliably even on engines with minor wear or imperfect sealing surfaces. Each set is application-specific, utilizing either deflector (umbrella), O-ring, or positive seal designs to match the engine's original requirements and ensure long-term durability in high-heat cylinder head environments.

• Engineered for Real-World Repairs: Manufactured with proprietary materials designed to compensate for aging engine tolerances and guide wear.
• Application-Specific Design: Provides the precise seal type—umbrella, O-ring, or positive—required for the specific engine architecture.
• Installation Protection: Includes a specialized installation tool to protect the inner seal lip from damage as it passes over the valve stem keeper grooves.
• OE-Level Validation: Parts are reviewed and validated by Fel-Pro engineers to ensure they meet or exceed the sealing performance of original equipment.

• Brand: Fel-Pro
• Part Number: SS 70537
• Part Type: Engine Valve Stem Oil Seal Set
• Included Hardware: Specialized installation tool

Fits select Scion tC (2AZ-FE) and Toyota Celica (1ZZ/2ZZ) models. These Supertech intake valve stem seals are engineered to provide a precise, durable seal between the valve stem and valve guide to maintain proper oil control in the cylinder head.

Constructed from high-grade polyacrylic, these seals are designed to replace hardened or leaking factory units that often cause blue smoke on startup and excessive oil consumption. By sealing the intake path, they prevent oil from migrating down the 5.5mm stems and forming carbon deposits on the intake valves, ensuring cleaner combustion and more consistent engine performance. This set is a direct replacement for OE-style guides and is essential for any top-end refresh or high-performance engine build.

• Part Type: Intake Valve Stem Seal
• Material: Polyacrylic
• Stem Diameter: 5.5mm
• Quantity: Set of 8
• Manufacturer Part Number: VS-T5.5I-8

This set of eight Supertech Performance valve stem seals is designed for Toyota Yaris and Echo applications equipped with the 4AGE 20V engine. These 5mm seals are compatible with both intake and exhaust valves, providing a precision fit to prevent oil from migrating down the valve guide and into the combustion chamber.

Engineered from high-quality Viton, these seals offer significantly better thermal stability and chemical resistance than standard nitrile rubber components. Viton maintains its seal integrity and elasticity even under the extreme temperatures of high-RPM or forced-induction builds, ensuring long-term durability and consistent oil control.

• Engine Compatibility: Toyota 4AGE 20V
• Valve Stem Diameter: 5mm
• Material: High-temperature Viton synthetic rubber
• Application: Fits both Intake and Exhaust positions
• Quantity: Set of 8 seals
• Manufacturer Part Number: VS-TY5E-8

Maintain precise oil control and protect your combustion chamber with this set of 8 Supertech integral valve stem seals. Specifically designed for the Mini Prince R56 engine with 6mm valve stems, these seals are manufactured from high-grade Viton. This fluoroelastomer material provides significantly better heat resistance and durability than standard rubber, ensuring they remain pliable and effective even under the extreme thermal loads of a performance engine.

These integral-style seals seat securely on the valve guide to prevent oil from migrating down the stem, reducing blue smoke, oil consumption, and carbon buildup on the valves. Whether you are performing a top-end refresh or a full performance build, these seals provide the tight tolerances required for long-term reliability.

• Material: High-temperature Viton
• Valve Stem Diameter: 6mm
• Seal Type: Integral
• Quantity: Set of 8
• Manufacturer Part Number: VSI-MIN-R56-8

This set of Supertech 6mm Viton integral valve stem seals provides superior oil control and high-temperature resistance for your engine's valvetrain. Designed for 6mm valve stems, these seals are compatible with select Mini, Dodge Neon, and Mitsubishi 420A engines.

Viton is a premium fluoroelastomer material that offers significantly better heat resistance and longevity compared to standard rubber seals, making them an ideal choice for high-performance builds or standard cylinder head refreshes. The integral design ensures a secure fit on the valve guide to prevent oil consumption and smoking.

• Manufacturer Part Number: VSI-M6E-8
• Stem Diameter: 6mm
• Material: Viton (Fluoroelastomer)
• Style: Integral
• Quantity: Set of 8

Fits Mitsubishi Lancer Evolution X models equipped with the 4B11 engine.

Maintain precise oil control in your cylinder head with this set of 16 Supertech integral valve stem seals. These seals are engineered to withstand the high thermal loads and increased cylinder pressures common in turbocharged 4B11 applications. By providing a consistent seal against the valve stem, they prevent oil from migrating down the guide into the combustion chamber—eliminating the blue smoke and carbon buildup associated with worn factory seals.

Designed for both street and track use, these Supertech seals are manufactured to strict tolerances for long-term durability. This complete set provides all 16 seals required for a full intake and exhaust service on the 4B11 engine.

• Manufacturer Part Number: VSI-M5.5V-16
• Fitment: Mitsubishi Evolution X (4B11 Engine)
• Seal Type: Integral Valve Stem Seal
• Quantity: Set of 16

Ensure superior oil control and long-term durability in your cylinder head with this set of 8 Supertech Viton integral intake valve stem seals, specifically engineered for Ford EcoBoost (2.0L / 2.3L) engines. Manufactured from high-grade Viton, these seals provide exceptional resistance to the high operating temperatures and chemical degradation found in turbocharged, direct-injection applications.

The integral design combines the valve seal and spring seat into a single component. This construction provides a stable mounting base for the valve springs while preventing the seal from migrating or loosening during high-RPM operation. Whether you are performing a standard refresh or a high-performance build, these seals offer the precision and heat tolerance required to maintain intake port cleanliness and consistent engine performance.

• Fits Ford EcoBoost (2.0L / 2.3L) engines
• Material: High-grade Viton fluoroelastomer
• Configuration: Integral (Seal and spring seat combination)
• Application: Intake valves only
• Quantity: Set of 8
• Manufacturer Part Number: VSI-FECO20-I-8

Fits Ford EcoBoost 2.0L and 2.3L engines.

These Supertech integral exhaust valve stem seals are engineered to withstand the extreme temperatures found on the exhaust side of the Ford EcoBoost cylinder head. Manufactured from high-grade Viton rubber, these seals provide superior heat resistance and durability compared to standard OEM components. This is a critical upgrade for high-performance builds or turbocharged applications where exhaust gas temperatures are significantly elevated. The integral design ensures a secure seat on the guide for precise oil metering, preventing oil consumption and guide wear.

• Manufacturer Part Number: VSI-FECO20-E-8
• Material: High-temperature Viton
• Fitment: Exhaust side only
• Engine Compatibility: Ford EcoBoost 2.0L and 2.3L
• Quantity: Set of 8

Fits Ford Duratec engines equipped with 5.5mm diameter valve stems.

These Supertech integral valve stem seals are a high-performance upgrade designed to replace worn OE seals and ensure precise oil control in the valvetrain. Manufactured from premium Viton, these seals offer significantly higher heat resistance and chemical stability than standard rubber, making them essential for high-RPM and high-temperature engine builds.

The integral design incorporates the valve spring seat directly into the seal body, providing a stable foundation for the valve spring and simplifying the installation process. By maintaining a tight seal on the valve stem, these components prevent oil consumption and carbon buildup on the valves, protecting your engine's efficiency and power output.

• Manufacturer Part Number: VSI-D5.5E-8
• Material: High-grade Viton for superior thermal durability
• Valve Stem Diameter: 5.5mm
• Configuration: Integral seal with built-in spring seat
• Quantity: Complete set of 8

Fits Ford Duratec (2.5L) engines.

Maintain critical oil control and prevent smoke during startup and deceleration with this Supertech Viton Valve Stem Seal Set. These seals are engineered for the Ford Duratec 2.5L platform, providing a precise fit for 5.5mm valve stems. Whether you are performing a standard cylinder head refresh or a high-performance build, these seals offer superior heat resistance compared to standard rubber alternatives.

• Material: High-grade Viton for maximum resistance to heat and chemical degradation
• Valve Stem Diameter: 5.5mm
• Quantity: Complete set of 16 seals for full cylinder head coverage
• Application: Direct replacement for worn or hardened OE valve stem seals
• Manufacturer Part Number: VSI-D5.5E-16

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