The Cometic BMW 1990cc 86-92 93.4mm .051 inch MLS Head Gasket S14B20/B23 Engine - C4294-051 is a precision-engineered head gasket with a 93.4mm bore and .051" 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: 93.4mm
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Thickness: .051" compressed
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Part Number: C4294-051
Verified fitment: BMW M3 (1988–1991).