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Sierra 18-0418 Exhaust Manifold Gasket for GM 7.4L-8.2L Marine Engines

Manufacturer

Sierra

Picture for manufacturer Sierra

Part Number

18-0418
11 reviews
03/13/2036 1:34 PM
Sale Price

$16.39

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Sierra 18-0418 Exhaust Manifold Mounting Gasket is a precision-engineered replacement gasket designed for GM V-8 marine engines, including 454, 482, 496, 502, and 540 cubic inch displacement models (7.4L-8.2L). This gasket creates a reliable seal between the exhaust manifold and cylinder head, preventing exhaust leaks and ensuring optimal engine performance in marine applications.

Key Features:

  • Designed to perfectly match exhaust ports for GM big-block marine engines
  • Engineered to withstand high temperatures and pressures typical in marine exhaust systems
  • Meets or exceeds OEM specifications for reliable performance
  • Compatible with manifolds 18-1957-1, 18-1982, 18-1929, 18-1933, and 18-1898
  • Included in Sierra 18-8532 mounting kit

OEM Cross-References: Replaces Mercruiser 27-46820, OMC 909613 and 3852472, Volvo Penta 3852472, GM 3852472, Crusader 96653, Barr CHVA470000, GLM 33760, Mallory 9-61400, and Osco CW-GH. This direct replacement gasket ensures proper fitment across multiple marine engine brands.

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so far so good waiting for merchandise

Don't know yet haven't put it on yet.

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Quick, easy, and had exactly what i needed when i needed it!

Great choices, quick checkout, great prices compared to competitors

I ordered an Odyssey battery for my UTV from autoplicity and I must say the price is by far the lowest from anywhere on the web. Great service and fast shipping!! They keep you updated throughout the whole process. Autoplicity will definately be my first stop for things here on out.

Is been a great experience, just hope nothing goes wrong when I receive my part

Great service so far

Wow that was fast. I ordered a Pertronix Ignitor conversion kit. Not only were they by far the lowest price I could find, they shipped within hours of submitting the order. I got the shipment in less than 24 hrs, even though I ordered ground shipping. I was a little bummed that they did not offer free shipping, as I am used to with other online places, but with their fast turnaround, I am not begrudging it. Sure it might have been because they have a warehouse nearby, but it was still unexpectedly impressive. The part arrived and looks like it all there and should be good to go. <br><br>I can't vouch for their customer service, but so far I am pleasantly surprised.

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