Cometic D-Series MLS Exhaust Manifold Gasket

Description

Cometic D-Series MLS Exhaust Manifold Gasket – 0.030 in Thickness

The Cometic C4164-030 is a multi-layer steel (MLS) exhaust manifold gasket designed for Honda D-series SOHC engines. 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.

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 1.86 x 1.39 inch, matched to the factory D15/D16 exhaust ports. No sealants are required when installed on clean, flat mating surfaces.

Fitment

Honda D-series applications including D15 and D16 SOHC variants in the 92-00 Civic, using the matching D-series exhaust manifold/header flange pattern.

Part number

C4164-030

Factory part number it replaces:

18115-P2A-003