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      Mercruiser Engine Couplers Product Listings

      • Sierra 18-2171 Engine Coupler Replaces 76850A2
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        Sierra 18-2171 MerCruiser GM Engine Coupler

        $354.59
        $255.29

        Sierra 18-2171 MerCruiser Engine Coupler Sierra replacement round style engine coupler for all GM marine engines Except MerCruiser MR/Alpha/Bravo with Triangular, 3-bolt coupler. All Sierra...

      • Sierra 18-4442 Engine Alignment Tool Replaces 91-805475A1
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        Sierra 18-4442 MerCruiser Alpha One Engine Alignment Tool

        $201.09
        $156.79

        Sierra 18-4442 MerCruiser Alpha One Engine Alignment Tool Used to Verify Engine Alignment On: All MC-I, R-MR, Alpha 1, Alpha One/Gen 2 drives All Bravo drives All OMC Cobra...

      • Sierra 18-2414 Engine Coupler Replaces 97432A2
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        Sierra 18-2414 MerCruiser Engine Coupler

        $745.69
        $536.89

        Sierra 18-2414 MerCruiser Engine Coupler Sierra replacement engine coupler for MerCruiser Stern Drives. Sierra aftermarket engine parts are manufactured to meet or exceed OEM requirements...

      • Mercruiser 18643A-5 Engine Coupler Assembly
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        Mercury 18643A-5 MerCruiser Triangular Flywheel Mount Engine Coupler Kit

        $467.99
        $393.49

        Mercruiser 18643A-5 Engine Coupler Assembly Mercury MerCruiser 18643A5 Engine Coupler Kit is a genuine OEM replacement flywheel-mounted engine coupler designed for select MerCruiser Alpha sterndrive...

      • Mercruiser 8M0098795 Engine Coupler Assembly
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        Quicksilver 8M0098795 Coupler Assy

        $893.39
        $744.49

        Mercury - Mercruiser 8M0098795 Engine Coupler Assembly Genuine OEM Mercury-Mercruiser part. Fits: MCM 4.5L MPI, 6.2L MPI (Mercury) & GM V‑8 engines with Bravo drive Round shape Flywheel mount ...

      • Mercruiser 18643A7 Engine Coupler Kit
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        Mercruiser 18643A7 Engine Coupler Kit

        $670.99
        $563.49

        Mercruiser 18643A7 Engine Coupler Kit Genuine OEM Mercury-Mercruiser part. Replacement engine coupler kit for Mercruiser stern drives. Fits: MCM GM V‑6 & V‑8 (305 & 350 cid) engines (1983‑1993) & 454...

      • Sierra 18-2173 Engine Coupler Replaces 59726A3
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        Sierra 18-2173 MerCruiser 225/233/888 Engine Coupler

        $446.69
        $312.69

        Sierra 18-2173 Mercruiser Ford Engine Coupler Sierra replacement engine coupler for MCM Ford 225, 233 & 888 engines. Sierra aftermarket engine parts are manufactured to meet or exceed OEM...

      • Mercruiser 12632A7 Engine Coupler Kit
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        Mercury - Mercruiser 12632A7 Coupler Kit

        $628.49
        $527.99

        Mercruiser 12632A7 Engine Coupler Kit Genuine OEM Mercury-Mercruiser part. Fits: MCM 120/2.5L & 140/3.0L (1987‑1993) Triangular shape Flywheel mount Special Order Mercury Marine...

      • Mercruiser 98-8M0108208 Engine Coupler Assembly
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        Mercury - Mercruiser 98-8M0108208 Coupler Assy

        $768.49
        $645.49

        Mercruiser 98-8M0108208 Engine Coupler Assembly Genuine OEM Mercury-Mercruiser part. Fits: MCM 496 Mag & HO engines Round shape Flywheel mount Special Order Mercury Marine Information: Additional...

      Mercruiser OEM Engine Parts Finder

      Mercruiser Engine Couplers

      Mercruiser Engine Couplers link the engine to the sterndrive. Since it connects the boat’s power source to the propulsion system, you want to make sure your couplers are functioning properly. That is why we carry Mercruiser coupler replacements and Mercruiser coupler kits. We supply Sierra products, all meeting OEM requirements.

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