Elwis Valve Stem Seal

Elwis Royal valve stem seals, also called valve stem oil seals or valve seals, control oil flow in the engine's cylinder head. Each seal makes a static seal against the valve guide. It also makes a dynamic seal against the moving valve stem. Together these keep oil from passing through the cylinder head into the combustion chamber.

Key Features:

• Viton (FPM) rubber construction: Fluoroelastomer resists heat and engine oil, which suits the hot, oily conditions around the valve stem.
• OE-quality design: Made to original-equipment quality standards.
• Dual sealing action: Seals statically against the valve guide and dynamically against the valve stem.
• Oil control: Helps reduce oil consumption and exhaust smoke caused by oil entering the combustion chamber.
• Wide range of applications: The Elwis Royal line covers many engine designs and valve stem sizes.

Worn or hardened valve stem seals are a common cause of oil burning and blue exhaust smoke at start-up. Replacing them with quality Viton seals helps restore proper oil control and supports engine efficiency and long-term reliability.