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πŸ› οΈ sierra international white exhaust manifold gasket set 18-4367 logo

πŸ› οΈ Sierra International White Exhaust Manifold Gasket Set 18-4367 Review

3

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Very good

Revainrating 4.5 out of 5Β Β 
RatingΒ 
4.3
πŸ”§ Gaskets, 🏎️ Performance Car Parts & Accessories

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Description of πŸ› οΈ Sierra International White Exhaust Manifold Gasket Set 18-4367

With Siamese port cylinder heads. For : GM 153 & 181 (25 & 30L) CID engs: 120 & 140 hp (s/n 6229718 & Up). All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty.

Reviews

Global ratings 3
  • 5
    2
  • 4
    0
  • 3
    1
  • 2
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  • 1
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Type of review

Revainrating 5 out of 5

Successful installation on a 3.0L 4 cylinder for a do-it-yourselfer

The exhaust manifold gasket fitted well and is now holding tight after 5 hours of work. This is a pretty easy fix for any DIYer. The riser seal is made of a slightly different material than what I've ordered from other Mercruiser vendors. Worked on my 2001 Bayliner with Mercruiser 3.0L 4 cylinder I/O.

Pros
  • Lots of positive emotions
Cons
  • Some difficulties

Revainrating 3 out of 5

Didn't work for me, but that was due to insufficient product information.

I used a spacer lol. If you have a Mercruiser 3.0 TKS you will need a different kit. FYI mine was a 2006 with straight intake and exhaust ports, not top and bottom like in the picture. Rated for confusing compatibility, Sierra itself is a great company that could only use more details to help its customers.

Pros
  • will fit a lot of people
Cons
  • will be added later

Revainrating 5 out of 5

Would buy again. Superb quality

These gaskets state not to use other sealants as they contain "Grafton". whatever it is My head and manifold were warped and the paper gaskets were leaking like crazy. I don't know of a better idea for a boat, but money is tight this year. I removed the old header, cleaned it, painted it and sanded it as best I could. I applied a SMALL copper silicon bead around all surfaces, connected the gasket to the head and screwed it in place. If you read the instructions for the silicone, it says that…

Pros
  • Best in its niche
Cons
  • Frequency