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COMETIC BIG BORE GASKETS FOR TWIN CAM
Category dedicated to Cometic cylinder head and engine base gaskets designed for Harley-Davidson Twin Cam engines. Includes high-performance gasket kits for Big Bore and oversize cylinder work. Manufactured from high-strength materials to ensure a perfect seal between the cylinder head, engine block, and primary case.
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Cometic GasketCometic Big bore gaskets for Twin Cam
Version: Kit junta 3.875 1550 HG TCS/S junta de culata; .030Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam
Version: Kit 3.875 1550 TC junta de culata S/S; .040Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 3.937″ / 0.04″
Version: Juntas de culata EST (Extreme Sealing Technology), Se adapta a un diámetro de 3.937", .040" de grosorSize: 3,937" / 0,04"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 3.875″x.04″ MLS cylinder head Twin Cooled TC
Size: 3,875" x 0,04"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 4.06″ / 0.02″
Version: SLS, Juntas de base de acero de una sola capa, Para un tamaño de 4.060", .020" de grosorSize: 4,06" / 0,02"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 4.06″ / 0.04″
Version: MLS, Juntas de cabeza de acero multi capas, Se adapta a motores de 4.060" Big Bore y SE120R refrigerados por aire, .040" de grosor (OEM 16104-04)Size: 4,06" / 0,04"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 4.125″ / 0.03″
Version: MLS, Juntas de cabeza de acero multi capas, Se adapta a 4,125" Big Bore, .030" de grosor, refrigerado por aireSize: 4,125" / 0,03"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 4.125″ / 0.04″
Version: MLS, Juntas de cabeza de acero multi capas, Se adapta a 4.125" Big Bore, .040" de grosor, refrigerado por aireSize: 4,125" / 0,04"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – MLS head gasket 4″ TC99-17 .030″
Size: 4" / 0,03"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – MLS head 4″ TC99-17 .040″
Size: 4" / 0,04"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 3.875″x.03″ Twin Cooled TC MLS cylinder head
Size: 3,875" x 0,03"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 4.06″ / 0.01″
Version: SLS, Juntas de base de acero de una sola capa, Para un tamaño de 4.060", .010" de grosorSize: 4,06" / 0,01"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – 4.125″ / 0.02″
Version: SLS, Juntas de base de acero de una sola capa, Para un tamaño de 4.125", .020" de grosorSize: 4,125" / 0,02"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
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Cometic GasketCometic Big bore gaskets for Twin Cam – MLS head gasket Twin Cooled TC 4″x.040″
Size: 4" x 0,04"Gasket heads and bases. Designed for high-performance applications. The specified thickness is installed and stamped. Sold in sets…
About this category
Compatible with Harley-Davidson motorcycle families equipped with Twin Cam engines, such as Dyna, Softail, and Touring models across various generations. Ideal for restorations, displacement increases, and preventive maintenance requiring precision OEM or aftermarket gaskets. Ensures oil and fuel seal integrity under high operating pressures and temperatures.