Cometic H22 MLS Exhaust Manifold Gasket

Description

Cometic H22 MLS Exhaust Manifold Gasket – 0.040 in Thickness

The Cometic C4155-040 is a multi-layer steel (MLS) exhaust manifold gasket designed for the Honda H22 DOHC VTEC engine. Compared to common composite or graphite-style gaskets, MLS construction is far more resistant to heat cycling, blowout, and gasket “push-out” under sustained high temperature and vibration. It’s an ideal upgrade for street and track cars running aftermarket headers or higher exhaust heat, where long-term sealing matters. At 0.040 inch this is the thicker of Cometic’s MLS options for the H22, giving a little more crush and conformity across the flange, useful on resurfaced or slightly imperfect sealing faces.

This gasket uses an embossed multi-layer steel design to maintain clamping load across the flange, helping prevent exhaust leaks that can cause ticking, soot marks, and warped sealing surfaces over time. The oval ports measure 1.77 x 1.38 inch, matched to the factory H22 exhaust ports. No sealants are required when installed on clean, flat mating surfaces.

Fitment

Honda H22 applications including the H22A1 (93-96 Prelude) and H22A4 (97-01 Prelude), and H-series swaps using the matching H22 exhaust manifold/header flange pattern.

Part number

C4155-040

Factory part number it replaces:

18115-P13-003 (93-96 H22A1) / 18115-P5M-003 (97-01 H22A4)