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guidebook

Parts Selection Guide

Find the parts you need

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Prop Selection Guide

Find the right prop for your boat

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  • Engine Horsepower:
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      Mercruiser Pistons & Rings

      • Sierra 18-3944 Standard Piston Rings
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        Sierra 18-3944 Piston Rings

        $20.49
        $14.49

        Sierra 18-3944 Standard Piston Rings Sierra replacement standard piston rings. All pistons are supplied complete with piston rings and wrist pin. For: 5.0L 305 CID Size: STD Interchangeable with: Mercruiser Stern...

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      Mercruiser OEM Engine Parts Finder