Cometic Exhaust Header Collector Gasket .040

Cometic Exhaust Header Collector Gasket .040" Aluminum-2.5" Diameter Port-3.5" Bolt Circle-Set

Marsoni

M251S

$22.04

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

Cometic Exhaust Header Collector Gasket .040" Aluminum-2.5" Diameter Port-3.5" Bolt Circle-SetSKU: C15187A EXHAUST HEADER COLLECTOR GASKET . 040" ALUMINUM, 2. 5" DIAMETER PORT, 3. 5" BOLT CIRCLE, SET UPC NO: 191070000257 Material: Aluminum Compressed Thickness: . 040 Cometic Gasket Inc. Exhaust Gaskets are designed to be used with manifolds or headers. Offered in a range of materials to make sure you are covered with any cylinder head and manifold header combination. All exhaust gaskets are designed to be used without the use of messy sealants.

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Nice product. With adhesive applied, this an all in one product. Easily cut to random shapes and dimensions and the adhesive seems to hold well. Removing the paper that protects the adhesive to apply in tight areas, presents a new set of problems. Having applied the product inside the panels of an old Trooper, it is yet to be determine if sound and temperature transfer are reduced.

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Reviewed in the United States on February 14, 2026

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Cecil stevens

Lake Worth, US

★★★★★ 5

This is very easy to install works very well

Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt

Very well made installs very easily and insulates my truck well

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Reviewed in the United States on June 3, 2026

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Matt Boschen

Houston, US

★★★★★ 5

Just Right! Made in the Ukraine!

Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt, Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt

Great product! I doubled this up with Siless Sound Dampening material as well. I did a double layer of this insulation on the ceiling (same as in your home, more insulation up top) and single throughout the rest of the car, in my effort to turn my CUV into an interior camper for winter snow storm chasing! Looks great, easy to install, and I got to support the Ukraine! (I was leaning towards Kilmat products but they are made in the Russian Federation... with everything going on right now, it was a no brainer) Only downsides is (1) that you need to be really careful while handling it, because the stickiness WILL stick, (to your fingers) and if you handle it too much, you will pull some of that off. As long as you are careful there, you will be ok. (I personally cut the pieces to size/ smaller the better for tight spaces/ putting up behind other lines/hoses in the car... and then for the 2nd layer, I made sure I overlapped the seams so that there was no gap where the heat would escape through). Second Downside (2) is that I need a little bit more, but not a whole roll more worth... 50 sq ft would be better for what I needed it for, but whatever - I am being nitpicky at this point. Overall, Great Product/Looks Great/ I HIGHLY Recommend!

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Reviewed in the United States on May 3, 2022

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Amazon Customer

Birmingham, US

★★★★★ 5

Works

Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt

We used it on the inside of a jeep hard top. So far no complaints. The glue sticks. We were worried about the 110° temps and so far so good

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Reviewed in the United States on May 27, 2026