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      • Sierra 18-1843 MerCruiser V8 Dry Joint Exhaust Manifold
        $630.99
        $441.49

        Sierra 18-1843 MerCruiser V8 Dry Joint Exhaust Manifold Replaces 8M0185794 All Sierra manifolds are manufactured as a direct OE replacement and are fully interchangeable with the OEM products they are designed to replace. Features: Dry Joint...

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      • Sierra 18-1908 Manifold Riser Spacer Replaces 93320A13
        $188.99
        $132.49

        Sierra 18-1908 MerCruiser V6/V8 3" Manifold Riser Spacer Size: 3" For: 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...

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      • Sierra 18-1957-2 MerCruiser V8 1981-2002 Exhaust Manifold
        $396.99
        $253.99

        Sierra 18-1957-2 MerCruiser V8 GM 1981-2002 Exhaust Manifold - Replaces 807078T10 When in need of a MerCruiser manifold replacement, Wholesale Marine carries economical options to get you back on the water fast.  Sierra has engineered a...

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      • Sierra 18-1956-3 MerCruiser 2.5L/3.0L Exhaust Manifold
        $671.49
        $469.99

        Sierra 18-1956-3 MerCruiser 2.5L/3.0L Exhaust Manifold Replaces 860235A04 This sierra exhaust manifold features a one piece design and is for use with MerCruiser 2.5L/3.0L engines. Used With: Riser with Exhaust Tube 18-1975-1 Exhaust Manifold...

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      • Sierra 18-1953-2 Exhaust Manifold
        $318.99
        $213.99

        Sierra 18-1953-2 MerCruiser V8 1983-2002 Exhaust Manifold The Sierra 18-1953-2 exhaust manifold is engineered specifically for MerCruiser GM Small Block V8 engines manufactured between 1983 and 2002. Compatible with 305, 350, and 377 CID engines, this...

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      • Sierra 18-1952-1 Exhaust Manifold Replaces 99746A17
        $408.99
        $261.99

        Sierra 18-1952-1 MerCruiser V6 85-02 Exhaust Manifold  Replaces 99746A17 This Sierra exhaust manifold is for MerCruiser V6 Engines made by GM between 1985 and 2002. Features: Fits: MerCruiser V6 GM 229 & 262 CID engines built between 1985...

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      • Sierra 18-4226 Drain Plug Replaces 22-806608A02
        $4.49
        $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 18-0418 Exhaust Manifold Mounting Gasket Replaces 27-46820
        $21.49
        $14.99

        Sierra 18-0418 Exhaust Manifold Mounting Gasket Sierra high-quality engine parts are designed to meet OEM specifications. Features: 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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      Mercruiser OEM Engine Parts Finder

      MerCruiser Exhaust Manifold

      Every boater should know that 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, have it 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 brands 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.