Exhaust Systems
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Crusader Exhaust Elbow Mounting KitSIERRA-18-8515Qty In Stock: 0Brand: SierraOne hole exhaust elbow gasket with mounting bolts for Crusader log style manifolds. Learn More
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GM Small Block Exhaust Manifold Gasket Set | Sierra 18-0604SIERRA-18-0604Qty In Stock: 4Brand: SierraComplete exhaust gasket set for a pair of Sierra 18-1997-1 GM small block center rise manifolds. Learn More
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Mercury Exhaust Cover Gasket | Sierra 18-2714SIERRA-18-2714Qty In Stock: 0Brand: Sierra
Sierra exhaust cover gasket for 15-25 horsepower Mercury engines.
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OMC Upper Exhaust Boot | Sierra 18-2745SIERRA-18-2745Qty In Stock: 17Brand: SierraRubber exhaust hose connects exhaust manifold outlet to exhaust pipe on various OMC marine engines. Learn More
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Upper Exhaust HoseSIERRA-18-2779Qty In Stock: 24Brand: SierraRubber exhaust hose connects exhaust riser outlet to upper exhaust elbow on various Volvo Penta and OMC marine engines. Learn More
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Exhaust Flapper With Clamp - 4 in. | Sierra 18-4457SIERRA-18-4457Qty In Stock: 15Brand: SierraExhaust protector valve mounts on the outside of 4 in. exhaust tip to prevent backflow of water into the exhaust. Learn More
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OMC GM Small Block Exhaust Manifold | Sierra 18-1903SIERRA-18-1903Qty In Stock: 11Brand: SierraPort exhaust manifold fits OMC GM 5.0L & 5.7L marine engines with end riser. Learn More
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Inline 6 Cylinder Exhaust Manifold to Head GasketSIERRA-18-2830-1Qty In Stock: 4Brand: SierraCombination intake & exhaust manifold gasket fits Mercruiser GM straight 6 cylinder marine engines. Learn More
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Exhaust Flapper With Clamp - 5 & 6 in. | Sierra 18-4458SIERRA-18-4458Qty In Stock: 16Brand: SierraExhaust protector valve mounts on the outside of 5 in. & 6 in. exhaust tip to prevent backflow of water into the exhaust. Learn More
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1 in. OMC Plug Off Cap | Sierra 18-0549SIERRA-18-0549Qty In Stock: 18Brand: Sierra
Used with OMC V-8 stern drives and inboard from 1977-present.
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Exhaust Flapper With Clamp - 3 in. | Sierra 18-4456SIERRA-18-4456Qty In Stock: 37Brand: SierraExhaust protector valve mounts on the outside of 3 in. exhaust tip to prevent backflow of water into the exhaust. Learn More
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Mercruiser Full Flow Dry Joint Raw Water Cooling Exhaust Elbow Gasket | Sierra 18-0721SIERRA-18-0721Qty In Stock: 0Brand: SierraDry Joint Raw Water Cooling Exhaust Riser Gasket Learn More