The Cometic Harley-Davidson EVO Stock Bore 3.500in Head Gasket S/Steel 2Pk. .030in - C9689-030 is a precision-engineered head gasket with a 3.500 bore and .500" compressed thickness sold in a 2-pack.
The Cometic premium head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Built with Cometic's premium materials, this gasket meets or exceeds OEM specifications for durability and sealing performance. Precision CNC-machined to exacting tolerances, this gasket seals combustion, water jackets, and oil passages simultaneously — eliminating the need for multiple gaskets or sealing compounds.
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Bore Size: 3.500
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Thickness: .500" compressed
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Pack Quantity: 2
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Part Number: C9689-030