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Sierra International Manifold (18-1953-2) Large

4.6 4.6 out of 5 stars 101 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Exhaust Manifolds by Sierra
$169.99 with 13 percent savings
Typical price: $194.99

This is determined using the 90-day median price paid by customers for the product on Amazon. We exclude prices paid by customers for the product during a limited time deal.
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Purchase options and add-ons

  • Sierra Manifold
  • Supplied with gaskets
  • Will fit both Port and Starboard
  • Fits: MCM/MIE GM V-8 (305, 350 & 377 cid) engines (1983-2002)
  • Fit type: Universal Fit
› See more product details

Frequently bought together

Sierra International Manifold (18-1953-2) Large
$200.95
Get it May 7 - 13
In Stock
Ships from and sold by Willy Goodprice [AUTHORIZED DEALER]✅.
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Sierra International 18-1976-2 Manifold Elbow, 1 Pack, medium , Black
Get it May 3 - 7
Only 10 left in stock - order soon.
Ships from and sold by Performance Guarantee✅.
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Top Brand: Sierra

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50K+ customers rate items from this brand highly
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Product Description

The Sierra 18-1953-2 Manifold fits MCM/MIE GM V8 (305, 350, 377 CID) Engines 1983-2002. The manifold is supplied with gaskets and will fit port and starboard applications. It is ideally suited for freshwater applications. Interchangeable with the following part numbers: Barr MC-1-87114, GLM 51230, HGE 7114, Mallory 9-40507, Marine Power 0994-100, Mercruiser Stern Drive 860246A10, 860246A15, 860246A3, 860246A7, 860246A9, 860336A2, 860337A2, 87114A19, 87114A30, 87114A8, Osco 7114B2.

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
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What's in the box

  • Manifold

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    Price$200.95$17.58$8.99-9% $18.10
    List: $19.90    		$254.39
    Delivery
    Get it May 7 - 13
    Get it as soon as Monday, May 6
    Get it as soon as Monday, May 6
    Get it as soon as Monday, May 6
    Get it May 6 - 8
    Customer Ratings
    4.64.6 out of 5 stars101
    4.64.6 out of 5 stars177
    4.74.7 out of 5 stars87
    4.84.8 out of 5 stars1,444
    4.04.0 out of 5 stars8
    Sold By
    Willy Goodprice [AUTHORIZED DEALER]✅
    Small Fish
    HuthbrotherDirect-US
    Amazon.com
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    material
    —
    Oem
    —
    Various Materials
    Cast Iron

    Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    101 global ratings

    Customers say

    Customers like the quality, fit, and value of the gaskets. For example, they mention it's a heavy duty casting, fits perfectly, and is great value for the money. That said, opinions are mixed on completeness.

    AI-generated from the text of customer reviews

    13 customers mention13 positive0 negative

    Customers are satisfied with the quality of the gaskets. They mention that it is a quality replacement, with heavy duty casting and machining. The material used is also good. Overall, customers are happy with the product's quality and value.

    "...ones which tells me the casting of these headers and the material used are just as good...." Read more

    "...Sierra manifolds are a nice, quality replacement.NOTE: I ordered 2 manifolds...." Read more

    "...These manifolds come with everything needed, including quality gaskets for the risers." Read more

    "Arrived timely, well packaged, fit well!! Overall machining and casting was good." Read more

    8 customers mention8 positive0 negative

    Customers are satisfied with the fit of the gasket. They mention that it fits perfectly and is easy to assemble.

    "Fit perfect Mercury 5.7" Read more

    "...The manifolds fit perfect, and by using the studs, I was able to slide the new gaskets on, then slide the manifold on, the flat washer, then a lock..." Read more

    "Fit the intended application perfectly. All necessary parts were included. Just sand paint off gasket surfaces and install...." Read more

    "Arrived timely, well packaged, fit well!! Overall machining and casting was good." Read more

    4 customers mention4 positive0 negative

    Customers appreciate the value of the gasket. They say it's a great value for the money.

    "Good price but don’t expect everything in picture...." Read more

    "Sierra International 18-1953-2 Manifold. Great value for the money. Does not come with riser studs." Read more

    "Nice quality and good price..." Read more

    "High quality replacement part at a great price...." Read more

    9 customers mention6 positive3 negative

    Customers are mixed about the completeness of the gaskets. Some mention that it comes with all gasket, plugs, and necessary parts. However, others say that it didn't come with studs for riser.

    "...nice, all the mating surfaces seem to be true, nice and flat, comes with gaskets, bolts, and all the plugs!" Read more

    "...Did not come with studs for riser which I believe not all setups use studs. My local ACE hardware had studs that work perfectly...." Read more

    "...But that's how it goes to own a boat.These manifolds come with everything needed, including quality gaskets for the risers." Read more

    "Fit the intended application perfectly. All necessary parts were included. Just sand paint off gasket surfaces and install...." Read more

    Quality part, fast shipping, just remember to prep them.
    5 Stars
    Quality part, fast shipping, just remember to prep them.
    Well, after 35 years, I believe my factory Mercruiser manifolds finally gave up. Sierra manifolds are a nice, quality replacement.NOTE: I ordered 2 manifolds. Both came with manifold to head gasket, manifold to riser gasket, steel and brass plugs for all of the holes, plastic lower elbow with drain, and bolts that go into the head. Did not come with studs for riser which I believe not all setups use studs. My local ACE hardware had studs that work perfectly.NOTE #2: gasket surfaces were not straight with all the paint they had on them. Checking with a straight edge showed all the gaps. Some 50 grit sand paper on a block took all that paint off quickly and got them as flat as can be. I didn't mind the little prep work as it protected the surfaces from rust and kept them nice and clean.
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    Top reviews from the United States

    B. Clemons
    5.0 out of 5 stars Quality built with quality finish.
    Reviewed in the United States on July 31, 2022
    Verified Purchase
    Time of course will tell how well these hold up, but as anyone buying them knows, they never last as long as we'd like them too. Marine engines seem insanely primitive by design. It's one thing to put such heavy parts into a boat and expect it to float, but to then have to replace them every 5-7 years seems crazy. But that's how it goes to own a boat.

    These manifolds come with everything needed, including quality gaskets for the risers.
    Helpful
     Report
    denise
    5.0 out of 5 stars Worked great
    Reviewed in the United States on June 16, 2023
    Verified Purchase
    Fit perfect Mercury 5.7
    Helpful
     Report
    Jacob P.
    5.0 out of 5 stars Excellent replacement!
    Reviewed in the United States on April 20, 2023
    Verified Purchase
    I purchased two of these header for my 1984 Mercruiser 230 and they were a perfect match up. I'm not sure about the complaints towards the gaskets leaking, mine have almost 100 hours on them and not a drip of water to be seen. These are very heavy just like the old original ones which tells me the casting of these headers and the material used are just as good. Shipping arrived on time and everything was packaged perfectly for shipping. Will by again but hopefully won't have too haha 😅
    Helpful
     Report
    WC
    5.0 out of 5 stars Nice quality and good price
    Reviewed in the United States on June 2, 2021
    Verified Purchase
    This exhaust manifold is real nice, all the mating surfaces seem to be true, nice and flat, comes with gaskets, bolts, and all the plugs!
    Customer image
    WC
    5.0 out of 5 stars Nice quality and good price
    Reviewed in the United States on June 2, 2021
    This exhaust manifold is real nice, all the mating surfaces seem to be true, nice and flat, comes with gaskets, bolts, and all the plugs!
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    Helpful
     Report
    Joe Monty
    5.0 out of 5 stars Quality part, fast shipping, just remember to prep them.
    Reviewed in the United States on June 25, 2019
    Verified Purchase
    Well, after 35 years, I believe my factory Mercruiser manifolds finally gave up. Sierra manifolds are a nice, quality replacement.

    NOTE: I ordered 2 manifolds. Both came with manifold to head gasket, manifold to riser gasket, steel and brass plugs for all of the holes, plastic lower elbow with drain, and bolts that go into the head. Did not come with studs for riser which I believe not all setups use studs. My local ACE hardware had studs that work perfectly.

    NOTE #2: gasket surfaces were not straight with all the paint they had on them. Checking with a straight edge showed all the gaps. Some 50 grit sand paper on a block took all that paint off quickly and got them as flat as can be. I didn't mind the little prep work as it protected the surfaces from rust and kept them nice and clean.
    Customer image
    Joe Monty
    5.0 out of 5 stars Quality part, fast shipping, just remember to prep them.
    Reviewed in the United States on June 25, 2019
    Well, after 35 years, I believe my factory Mercruiser manifolds finally gave up. Sierra manifolds are a nice, quality replacement.

    NOTE: I ordered 2 manifolds. Both came with manifold to head gasket, manifold to riser gasket, steel and brass plugs for all of the holes, plastic lower elbow with drain, and bolts that go into the head. Did not come with studs for riser which I believe not all setups use studs. My local ACE hardware had studs that work perfectly.

    NOTE #2: gasket surfaces were not straight with all the paint they had on them. Checking with a straight edge showed all the gaps. Some 50 grit sand paper on a block took all that paint off quickly and got them as flat as can be. I didn't mind the little prep work as it protected the surfaces from rust and kept them nice and clean.
    Images in this review
    Customer image Customer image Customer image Customer image Customer image
    Customer imageCustomer imageCustomer imageCustomer imageCustomer image
    11 people found this helpful
    Helpful
     Report
    Mike Roberts
    5.0 out of 5 stars Fit perfect. 1982 5.7 liter Mercruiser.
    Reviewed in the United States on January 15, 2020
    Verified Purchase
    My only suggestion would be to forget using the mounting bolts that come with each manifold and go buy yourself some same length full threaded 3/8 x 16 studs. I purchased 4 of these manifolds to use in my 1982 Trojan 36' Tri-cabin with twin Mercruiser 5.7 liter 260 hp engines. The manifolds fit perfect, and by using the studs, I was able to slide the new gaskets on, then slide the manifold on, the flat washer, then a lock washer, and then a nut. Tighten them all down, and the manifold was on. Less than an hour per manifold, start to finish, including putting on the risers on each manifold one the manifold was on the engine.
    One person found this helpful
    Helpful
     Report
    Rusty
    5.0 out of 5 stars High quality replacement part at a great price.
    Reviewed in the United States on May 5, 2020
    Verified Purchase
    Fit the intended application perfectly. All necessary parts were included. Just sand paint off gasket surfaces and install. IMO, just as good a part as OEM.
    Helpful
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    Kath
    5.0 out of 5 stars Good aftermarket Product
    Reviewed in the United States on March 7, 2021
    Verified Purchase
    Arrived timely, well packaged, fit well!! Overall machining and casting was good.
    Helpful
     Report

    Top reviews from other countries

    Translate all reviews to English
    Ken martin
    5.0 out of 5 stars Good product
    Reviewed in Canada on August 10, 2020
    Verified Purchase
    Manifolds work great
    And arrived prior to expected date
    Report
    Adrián Macías Eguiarte
    5.0 out of 5 stars Manifull de escape marino
    Reviewed in Mexico on May 15, 2018
    Verified Purchase
    Exelente producto. De hecho mejor que otras marcas genéricas y en precio más bajo y calidad casi como la pieza original.. 👍
    Report
    mario
    5.0 out of 5 stars Manifold de bateau
    Reviewed in Canada on August 22, 2019
    Verified Purchase
    Bonne qualité à un prix raisonnable
    One person found this helpful
     Report
    brad coxworth
    5.0 out of 5 stars Five Stars
    Reviewed in Canada on May 21, 2016
    Verified Purchase
    best price in canada
    Report