Cometic GM 4.1in Bore .040in MLX 4-Layer Head Gasket - Right

Cometic GM 4.1in Bore .040in MLX 4-Layer Head Gasket - Right

Marsoni

M251S

$121.33

Get it in 3 business days with 1 day shipping. Friday, May 29

Cometic GM 4.1in Bore .040in MLX 4-Layer Head Gasket - RightThe Cometic MLS gasket is comprised of three to five layers of stainless steel. Cometic uses stainless steel for increased strength, its ability to rebound and resist corrosion. The outer layers of the gasket are embossed and coated on both sides with a Viton rubber material designed to meet the demands of a variety of harsh sealing environments, load conditions and surface finishes. The Viton coating is heat resistant to 250C or 482F.

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So the quality of this not great, but good enough and they look nice enough on the wall. However, the bracket holes are not spaced at 16" intervals. WTF? I'm not sure who designed this thing. The molly plugs that came with it look OK, but to play it safe I used a cobalt steel drill bit and made my own holes in the bracket. Easy enough with some wd40. My other pick with this is that the screws to anchor the shelf to the bracket are black and and very obvious... they should have supplied some kind of cap.

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Reviewed in the United States on January 31, 2026