Supertech Viton Exhaust Valve Stem Seals – 5.5mm | Honda | Set of 8

Maintain precise oil control and protect your Honda engine’s exhaust valves with Supertech’s Viton Exhaust Valve Stem Seals. Manufactured from Viton fluoroelastomer — a premium synthetic rubber compound with superior heat and chemical resistance compared to standard nitrile seals — these seals are engineered for the elevated temperatures of the exhaust side of the cylinder head. Sold as a set of 8, covering a full 4-cylinder engine’s exhaust valves.

Key Features

• Viton Fluoroelastomer Material: Superior heat resistance, chemical resistance, and durability compared to standard nitrile valve stem seals — essential for exhaust valve applications where temperatures are significantly higher than the intake side
• 5.5mm Valve Stem Diameter: Correct sizing for Honda engines using 5.5mm exhaust valve stems
• Exhaust-Specific Design: Engineered for the higher thermal demands of exhaust valve stem sealing
• Precise Oil Control: Maintains proper oil film on the valve stem while preventing excess oil from entering the combustion chamber
• Set of 8: Covers all exhaust valves on a 4-cylinder engine in a single purchase
• Supertech Quality: Manufactured by Supertech Performance — a trusted supplier to professional engine builders worldwide

Specifications

• Material: Viton Fluoroelastomer
• Valve Stem Diameter: 5.5mm
• Position: Exhaust
• Quantity: Set of 8
• Part Number: VS-H5.5E-8
• Application: Honda engines with 5.5mm exhaust valve stems

Common Fitment

• Honda B-Series, D-Series, H-Series, F-Series engines with 5.5mm exhaust valve stems
• Verify valve stem diameter for your specific Honda engine before ordering

Note: Always verify valve stem diameter for your specific engine and head configuration before ordering. Exhaust and intake valve stem seals are not interchangeable — confirm you are ordering the correct exhaust-specific seal. Professional engine assembly recommended.