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James Gaskets
The premier sealing solution for American V-Twin motorcycles since 1979.
AUTHORITY // JAMES GASKET
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AUTHENTIC MANUFACTURER PROFILE
About James Gaskets
Founded in 1979 by James W. Clark in Carson City, Nevada, James Gaskets revolutionized the American V-Twin industry by introducing modern aerospace elastomer coatings, O-rings, and mechanical seals to historic and modern Harley-Davidson motorcycles. Known for the patented Fire-Ring head gasket, James Gaskets remains the benchmark for leak-free Harley-Davidson engine, transmission, and primary drive rebuilding.
Founded
1979
Corporate Headquarters
Carson City, Nevada, USA
Core Product Specialties
Genuine Fire-Ring Cylinder Head GasketsRCM (Rubber Covered Metal) GasketsComplete Motor Gasket SetsPrimary & Transmission Inspection Gaskets
Proprietary Engineering & Standards
✓Patented Fire-Ring cylinder head gasket technology providing continuous stainless steel combustion sealing under high cylinder pressure
✓RCM (Rubber Covered Metal) multi-layer base gaskets maintaining micro-sealing under severe crankcase thermal flexing
✓Proprietary Micro-Pore synthetic gasket sheet materials engineered to resist high-temperature oil and fuel breakdown
✓Exact OEM reproduction tooling ensuring 100% accurate hole alignment for Knucklehead, Panhead, Shovelhead, Evo, and Twin Cam engines
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