This product has been discontinued.
Sierra
Exhaust Manifold With Mounting Package - 18-1957-1 - Sierra
Price: $198.72
 Discontinued
Save: $101.27
(33% Off $299.99)
Part # 18-1957-1
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(Discontinued)
This item is found in the following Product Families
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Replaces OEM part #
  • MERCURY MARINE 807078A 6
  • MERCURY MARINE 89011A8
Fits most Mercruiser (GM) V-8 big blocks with center riser, 454 cu.in. Models 330, 340 & 7.4L, Port & Starboard
WILL FIT EITHER SIDE
Use with:
    Exhaust Manifold Gasket: 18-0418
    Mounting Kit: 18-8532
Average Customer Review for Exhaust Manifold With Mounting Package - 18-1957-1 - Sierra
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Fantastic Bargain
by Bruce from Lexington Park, Maryland on June 23, 2016
With most other companies selling the manifolds and gasket sets separately, this was a nice surprise. All gaskets, hose connectors and pipe plugs included. Was out of the box and installed in minutes. Great product. Highly recommended.
(2 of 2 people found this review helpful)
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Q:
Do the mounting surfaces of the exhaust ports need to be sanded clean of paint or do they ship clean?
A:
The mounting surfaces should still seal with or without paint.

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