OMC Exhaust Manifolds

Sierra 18-4218 Drain Tap for MerCruiser, Volvo, OMC Sierra high-quality engine parts are designed to meet OEM specifications. Used with most OEM Manifolds. Features: Fits MerCruiser cylinder blocks & exhaust manifolds Material: Brass Size:...

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Sierra 18-0549 Plug Off Cap 1" I.D. Sierra high quality engine parts are designed to meet OEM specifications. Features:   I.D.: 1" or 25.4mm For V8 Stern Drives and Inboards 1977 - present. Interchangeable...

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Sierra 18-0550 OMC Exhaust Manifold Plug Off Cap 1.25" I.D. Sierra high-quality engine parts are designed to meet OEM specifications. Features: I.D.: 1-1/4" For V8 Stern Drives and Inboards 1977 - present. Interchangeable...

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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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Sierra 18-1909-1 Center Rise Manifold 4" Outlet Riser Special Order est. 10 Days. Fits many GM & Ford center rise manifolds. Features: Material: Cast Iron 4" outlet 7° Interchangeable...

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