The Cometic Honda /F22B4/F22B5/F22B6/F22B8/F22Z6/F23A1 .027in MLS Cylinder Head Gasket-89mm Bore - C4621-027 is a precision-engineered head gasket with a 89mm bore and .027" compressed thickness.
The Cometic Multi-Layer Steel (MLS) head gasket is engineered for high-performance and racing applications where OEM gaskets fall short. Featuring Multi-Layer Steel (MLS) construction, this gasket uses multiple embossed steel layers that conform to surface irregularities and maintain a positive seal. 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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Material: Multi-Layer Steel (MLS)
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Bore Size: 89mm
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Thickness: .027" compressed
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Part Number: C4621-027
Verified fitment: Acura CL (1997–1999); Honda Accord (1994–2002).