Mercruiser Exhaust Manifolds

      • Sierra 18-4226 Drain Plug Replaces 22-806608A02
        List Price: $4.49
        Starting At: $2.72

        Sierra 18-4226 Mercruiser Blue Plastic Drain Plug This Sierra 18-4226 drain plug is widely used for Mercruiser V4, V6 and V8 marine engines. Fits Mercruiser cylinder blocks and exhaust manifolds Comes complete with o-ring Interchangeable...

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      • Sierra 18-1976-2 Mercruiser Manifold Elbow
        List Price: $176.99
        Starting At: $112.95

        Sierra 18-1976-2 Mercruiser Manifold Elbow Fits most Mercruiser V6 and V8 applications, 7 degree (4" O.D. Riser). Recommended for saltwater applications. Comes with: Sierra 18-4203 Sierra 18-0897 Exhaust Elbow Gasket Sierra 18-4258 Pipe...

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      • Sierra 18-1953-2 Exhaust Manifold
        List Price: $252.99
        Starting At: $176.99

        Sierra 18-1953-2 Mercruiser V8 Exhaust Manifold Sierra replacement exhaust manifolds are designed to meet or exceed OEM requirements. This Sierra 18-1953-2 manifold is for Mercruiser GM Small Block V8 engines with center riser. Will fit Port and...

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      • Sierra 18-0897 Exhaust Manifold Elbow Gasket Replaces 27-863724
        List Price: $7.49
        Starting At: $4.65

        Sierra 18-0897 Mercruiser Exhaust Elbow Gasket Sierra engine parts are designed to meet OEM specifications. The 18-0897 Exhaust Elbow Gasket is a standard cooling, restrictor gasket. Fits 1981-1997 GM V-6 & V-8 engines with center rise outlet...

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      • Exhaust Manifold Gasket , Mercury - Mercruiser 27-33395
        List Price: $9.52
        Starting At: $7.93

        Exhaust Manifold Gasket , Mercury - Mercruiser 27-33395 Fits MCM/MIE GM V-8 (283, 305, 350,  and 377 CID) engines Replaces: GLM 31100 Mallory 9-61401 Felpro 17420 OMC 3852468 Redline RL0872 Sierra 18-0872

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      • Sierra 18-4224 Drain Manifold Elbow Assembly Replaces 22-8622210A01
        List Price: $8.49
        Starting At: $6.43

        Sierra 18-4224 Mercruiser Drain Elbow Assembly Sierra high-quality engine parts are designed to meet OEM specifications.  Includes Drain 3/4" NPT Fits MCM/MIE V-6 & V-8 engines with center rise exhaust manifolds Interchangeable...

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      • Restrictor Elbow Gasket, Mercury - Mercruiser 27-863724
        List Price: $11.99
        Starting At: $9.93

        Restrictor Elbow Gasket, Mercury - Mercruiser 27-863724 Fits Center Riser manifolds. Commonly used on all raw water cooled engines. Creates back pressure by restricting the water flow, keeping the manifold full. For: 185, 205, 229 & 262 CID V-6...

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      • Sierra 18-1952-1 Exhaust Manifold Replaces 99746A17
        List Price: $292.99
        Starting At: $172.95

        Sierra 18-1952-1 Exhaust Manifold For Mercruiser V6 Engines. Fits Both Port or Starboard Sides. Mounting Gasket Included. Replaces: Barr MC-1-99746 GLM 51220 Mallory 9-40505 Mercruiser Stern...

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      • Sierra 18-4367 Exhaust Manifold Gasket Set Replaces 27-99777A1
        List Price: $18.99
        Starting At: $12.93

        Mercruiser 4Cyl Exhaust Manifold Gasket Set by Sierra For GM 153 & 181 (2.5 & 3.0L) CID Engines; 120 & 140 HP - S/N 6229718 & UP (With Siamese Port Cylinder Heads) Interchangeable...

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      • Sierra 18-0549 Plug Off Cap Replaces 3852476
        List Price: $10.98
        Starting At: $7.84

        Sierra 18-0549 Plug Off Cap 1" I.D. Sierra high quality engine parts are designed to meet OEM specifications. For V8 Stern Drives and Inboards 1977 - present. Interchangeable with: GLM 22290 Johnson/Evinrude...

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      • Sierra 18-1951-1 Exhaust Manifold Replaces 77235A2
        List Price: $456.49
        Starting At: $264.95

        Mercruiser Manifold - Starboard - with Mounting Package by Sierra Fits most Mercruiser GM Small Blocks with End Risers. Key Features: Starboard Side Supplied with Mounting Package           Use With: Exhaust Manifold Gasket...

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      • Sierra 18-2909 Exhaust Manifold Gasket Replaces 27-99757
        List Price: $8.99
        Starting At: $6.17

        Sierra 18-2909 Exhaust Manifold Gasket for Mercruiser, OMC, Volvo V-6 Sierra replacement engine parts are designed to meet OEM specifications.  GM V-6 Use with: 18-1932 Manifold 18-1952-1 Manifold Interchangeable...

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      • Sierra 18-1950-1 Exhaust Manifold Replaces 77234A2
        List Price: $446.99
        Starting At: $259.95

        Sierra 18-1950-1 Mercruiser Manifold - Port - with Mounting Package Fits most Mercruiser GM Small Blocks with End Risers. Supplied with mounting package Port Side Applications: GM 228 S/N 4765100-6218461 GM 250 S/N 4768860-4908849 GM 255 S/N...

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      • Mercury Mercruiser Stainless Steel Hose Clamp 54-815504272
        List Price: $3.77
        Starting At: $3.14

        Clamp, Mercury - Mercruiser 54-815504272 MERCURY / QUICKSILVER STAINLESS STEEL HOSE CLAMP-4 1/16" TO 5"

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      • Sierra 18-1998-1 Exhaust Manifold
        List Price: $292.49
        Starting At: $204.49

        Exhaust Manifold - Port & Starboard for Ford V8 Engines by Sierra Fits Port and Starboard Sides. Universal Center Riser Manifold. Use With: Exhaust Manifold Gasket: 18-0183 Exhaust Manifold Gasket Set: 18-0603 Exhaust Manifold Mounting Kit: 18-8538...

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      • List Price: $319.49
        Starting At: $199.95

        Mercruiser Manifold - Port & Starboard by Sierra For Most Mercruiser Big Blocks with Center Risers. Fits Either Port or Starboard Sides. Replaces: Mercury 807078A-6,...

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      • Sierra 18-1997-1 Exhaust Manifold
        List Price: $281.49
        Starting At: $162.95

        Universal Exhaust Manifold with Mounting Package by Sierra For Port & Starboard Sides. Universal Center Riser Manifold. Fits: Chriscraft 283, 302, 307, and 350 CID Engines. Crusader 283 and 327 CID Engines thru 1964; 305, 307 and 350 CID Engines 1965...

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      • Sierra 18-0418 Exhaust Manifold Mounting Gasket Replaces 27-46820
        List Price: $14.49
        Starting At: $10.20

        Sierra 18-0418 Exhaust Manifold Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Fits MCM/MIE GM V-8 (454, 482, 496, 502 & 504 cid) engines. Interchangeable...

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      MerCruiser Exhaust Manifold

      Corrosion is the enemy of many boat engine parts. Even those that are sealed, such as an exhaust manifold, are not protected from damage by outside elements. As part of any sound maintenance program, Wholesale Marine recommends that you have this vital engine part inspected and, when worn, replaced to avoid costly engine repairs or even a rebuild.

      Need to Replace Your MerCruiser Exhaust Manifold? Let Us Help!

      MerCruiser exhaust manifolds are among the most reliable on the market. Models that have manifolds that are cooled by the engine’s fresh water/antifreeze coolant mixture will last indefinitely, but still require routine maintenance. Should your MerCruiser Exhaust Manifold require replacement, know that we are your source for every part the task requires. From MerCruiser OEM Exhaust Elbows to Sierra Exhaust Boots to an entire MerCruiser OEM Exhaust Manifold, hardware, hose barbs, risers, drain taps, and gaskets, Wholesale Marine even carries the hardware and tools to ensure you’ll get the job done right.

      Shop Wholesale Marine for Mercruiser 4, 6 and 8 cylinder exhaust manifolds and risers. We carry both OEM and Sierra brand for the best selection, lowest price, and fastest shipping on the web! Give us a call or try our user friendly Parts Finder for help locating the correct parts for your motor. If you have questions, we invite you to contact us. We’re boating enthusiasts too, and welcome your call. Or, if you wish to order, please call us Monday through Friday from 9:00 AM until 6:00 PM EST at (877) 388-2628. Don’t forget to sign up for our Captain’s Club Rewards Program to save even more the next time you shop at Wholesale Marine.