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Mercruiser Exhaust Manifolds

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Parts Selection Guide

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      • Sierra 18-4226 Drain Plug Replaces 22-806608A02
        List Price: $4.49
        Starting At: $3.49

        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: $194.49
        Starting At: $186.99

        Sierra 18-1976-2 Mercruiser Manifold Elbow Fits most Mercruiser V6 and V8 applications, 7 degree (4" O.D. Riser). Unlike automotive engines, all marine inboards have exhaust risers that feature a water induction elbow. Located behind the engine’s...

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      • Sierra 18-0897 Exhaust Manifold Elbow Gasket Replaces 27-863724
        List Price: $7.99
        Starting At: $5.99

        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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      • Restrictor Elbow Gasket, Mercury - Mercruiser 27-863724
        List Price: $12.17
        Starting At: $10.14

        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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      • Exhaust Manifold Gasket , Mercury - Mercruiser 27-33395
        List Price: $9.68
        Starting At: $8.07

        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 18-4349 Exhaust Manifold Gasket Set
        List Price: $22.49
        Starting At: $15.99

        Sierra 18-4349 Mercruiser V8 Exhaust Manifold Gasket Set Sierra high-quality engine parts are designed to meet OEM specifications. For GM 200, 228, 230, 260, 898 (5.0 & 5.7L). Set Contains: (2) 18-0872 Exhaust Manifold Gasket (2) 18-0897...

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      • Sierra 18-0549 Plug Off Cap Replaces 3852476
        List Price: $10.99
        Starting At: $8.49

        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: $517.49
        Starting At: $362.49

        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...

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      • Sierra 18-1908 Manifold Riser Spacer Replaces 93320A13
        List Price: $151.99
        Starting At: $109.99

        Sierra 18-1908 Mercruiser Manifold Riser Spacer Mercruiser GM V6 229 and 262cu.in. (Models: 185 and 205) GM Small Block V8 305-350cu.in. (Models: 200, 228, 230, 260 and 898) GM Big Block V8 454cu.in. (Models: 330, 340 and 7.4L) Use With: Manifold:...

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      • Sierra 18-1950-1 Exhaust Manifold Replaces 77234A2
        List Price: $517.49
        Starting At: $362.49

        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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      • Sierra 18-0418 Exhaust Manifold Mounting Gasket Replaces 27-46820
        List Price: $15.99
        Starting At: $10.99

        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. Fits Volvo 7.4L, GL, GI, GSI, and 8.2L, GL, GI,...

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      • Sierra 18-8520 Exhaust Manifold Mounting Kit
        List Price: $22.49
        Starting At: $15.99

        Sierra 18-8520 Mercruiser Exhaust Manifold Mounting Kit Sierra high-quality engine parts are designed to meet OEM specifications. For GM Small Block V8 305-350 cu. in. (Models: 198, 200, 228, 230, 260, 898) Used with: Manifold: 18-1950-1,18-1951-1,...

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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.