Stone JF-16933 Engine Oil Seal Valve Stem Seal

The Stone JF-16933 is an engine oil seal manufactured by Ishino Stone (Ishino Gasket Corporation), a Japanese sealing specialist with a heritage dating back to 1923. The "JF" prefix in Stone's part numbering system designates valve stem seals and engine oil seals, making this a precision sealing component designed to prevent oil leakage within the engine assembly.

Ishino Stone is recognized as a leading seal manufacturer worldwide, producing parts to original equipment (OE) specifications for Japanese and Korean vehicle applications. All Stone seals are engineered to match OE material and dimensional standards, ensuring a proper fit and reliable seal without modification.

Key Features:

• OE-quality engine oil seal / valve stem seal from Ishino Stone (Ishino Gasket Corporation)
• Manufactured to original equipment specifications for precise fit and sealing performance
• Part of Stone's comprehensive "JF" oil seal and valve stem seal line
• No core charge required
• Designed for Japanese and Korean vehicle engine applications

Stone seals and gaskets are trusted by major automotive manufacturers including Toyota and Honda. The JF-16933 is an ideal replacement for worn or leaking engine seals, helping restore proper oil containment and engine integrity.