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      Mercruiser Exhaust Manifolds Product Listings

      • Sierra 18-8532 Exhaust Manifold Mounting Kit
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        $32.69
        $23.49

        Sierra 18-8532 Exhaust Manifold Mounting Kit Sierra Exhaust Manifold Mounting Kit for use on Mercruiser GM Big Block V-8 454 cu. in. (models 330, 340 & 7.4L). Use with: 18-1957-1...

      • Sierra 18-8530 Mercruiser Exhaust Elbow Mounting Kit
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        $31.79
        $22.89

        Sierra 18-8530 Mercruiser Exhaust Elbow Mounting Kit Sierra replacement exhaust elbow mounting gasket for Mercruiser engines. For: Mercruiser 4 cyl. 224 cu. in. 3.7L (models 165, 170, 180 &...

      • Sierra 18-8502 Exhaust Manifold Mounting Kit
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        $81.79
        $58.89

        Sierra 18-8502 Exhaust Manifold Mounting Kit for V-8 Small Block Sierra high-quality engine parts are designed to meet OEM specifications. OMC GM Small Block V8 305-350cu.in...

      • Sierra 18-4226 Drain Plug Replaces 22-806608A02
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        $4.59
        $3.89

        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...

      • Sierra 18-4224 Drain Manifold Elbow Assembly Replaces 22-8622210A01
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        $12.19
        $9.49

        Sierra 18-4224 MerCruiser V6/V8 Drain Elbow Assembly Sierra high-quality engine parts are designed to meet OEM specifications.  Features: Includes Drain 3/4" NPT Fits MCM/MIE V-6 & V-8 engines...

      • Sierra 18-4009 Manifold End Plate Replaces 60252A2
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        $89.29
        $64.29

        Sierra 18-4009 Manifold End Plate for Mercruiser & OMC Sterndrives Sierra high-quality engine parts are designed to meet OEM specifications. For Use With: 18-1950-1 Manifold 18-1951-1...

      • Sierra 18-4264 Pipe Plug
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        $5.29
        $4.69

        Sierra 18-4264 Pipe Plug Sierra high-quality engine parts are designed to meet OEM specifications. For use on Mercruiser Stern Drives and Mercury Marine engines. Using Pipe Sealant with Teflon is...

      • Sierra 18-4263 Pipe Plug Replaces 22-32802
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        $6.09
        $4.69

        Sierra 18-4263 Pipe Plug 1/8"-27 NPT Sierra replacement pipe plug. Thread Size: 1/8" - 27 NPT Material: Brass  56507 Pipe Sealant with Teflon is recommended <

      • Sierra 18-4258 Pipe Plug
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        $6.79
        $5.69

        Sierra 18-4258 MerCruiser Pipe Plug Sierra stainless steel pipe plug with square drive. Note: Pipe sealant with Teflon is recommended for use on plug threads. Thread Size: 3/4" - 14 NPT Use...

      • CLEARANCE
        Sierra 18-4257 Pipe Plug
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        $2.39
        $1.59

        Sierra 18-4257 Pipe Plug Sierra high-quality replacement pipe plug for use.  Material: Black Steel Thread Size: 1/4" Note: Pipe sealant with Teflon is recommended for use on plug threads...

      • Sierra 18-4256 Pipe Plug
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        $2.79
        $2.39

        Sierra 18-4256 Pipe Plug 56507 Pipe Sealant with Teflon is recommended for use on 

      • Sierra 18-4349 Exhaust Manifold Gasket Set
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        $41.89
        $30.19

        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)...

      • Sierra 18-0928-1-9 Manifold End Cap Gasket (2 Pk)
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        $23.99
        $17.29

        Sierra 18-0928-1-9 Manifold End Cap Gasket (2 Pk) Sierra replacement manifold end cap gasket used on Mercruiser engines. Fits: MCM/MIE 120/2.5L, 140/3.0L, 165 (I/L 6 cyl.), 470, 898, 228 &...

      • CLEARANCE
        Sierra 18-1992-1 Manifold Elbow Adapter
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        $271.69
        $181.99

        Sierra 18-1992-1 Manifold Elbow Adapter Sierra high-quality engine parts are designed to meet OEM specifications. For 3" I.D. Exhaust Hose. 80° Interchangeable...

      • Sierra 18-0956 Exhaust Manifold Gasket Replaces 27-68715
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        $26.19
        $20.49

        Sierra 18-0956-1 Mercruiser, OMC, Volvo Exhaust Manifold Gasket For Ford 460 cid V-8 & 3.7L (4 cyl) Interchangeable with: Chrysler...

      • Sierra 18-2833-9 Exhaust Elbow Gasket (Priced Per Pkg Of 2)
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        $11.59
        $9.09

        Sierra 18-2833-9 MerCruiser Exhaust Elbow Gasket (Priced Per Pkg Of 2) These exhaust elbow gaskets are designed for use with MerCruiser engines. Application Info Fits MerCrusier V8 Ford...

      • Sierra 18-2909-9 Exhaust Manifold Gasket (Priced Per Pkg Of 2)
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        $24.49
        $17.59

        Sierra 18-2909-9 Exhaust Manifold Gasket (Priced Per Pkg of 2) This exhaust manifold gasket set is an aftermarket product that meets or exceeds OEM requirements. Supersedes 18-2909 Use...

      • Sierra 18-0183-1 Exhaust Manifold Gasket
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        $18.79
        $15.89

        Sierra 18-0183-1 Exhaust Manifold Gasket for Mercruiser, OMC Sierra Exhaust Manifold Gasket for use on Mercruiser and OMC Stern Drives. Fits MCM/MIE Ford V-8 engines Use With: 18-1996...

      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 Wholesale Rewards Program to save even more the next time you shop at Wholesale Marine.