Inboard Engine Exhaust Manifolds
As tough as marine manifolds are, they can eventually fail due to the extreme heat, saltwater and corrosive gases they’re subject to. Marine Parts Source carries dozens of exhaust manifold parts so you can quickly repair your inboard engine. Shop for all the top inboard engine brands such as Volvo Penta, Crusader, Indmar and MerCruiser. Purchase OEM boat exhaust manifolds for guaranteed quality or proven aftermarket manifolds to upgrade their performance. You’ll even find LS engine manifolds for high performance applications.
Browse our full collection below or enter an exhaust manifold part number into the search bar to find the correct part for repairs and rebuilds. We provide all the information you need, including which OE parts it replaces. You can even see which warehouses the manifold is in stock at. We’ll ship from the nearest location, so it arrives fast — and most marine exhaust manifolds qualify for free shipping.
Exhaust Manifolds
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GM Big Block Exhaust Manifold | Evinrude/Johnson 3861459BRP-3861459Qty In Stock: 1Brand: Johnson/Evinrude/OMCOEM cast iron center rise exhaust manifold fits OMC & Volvo Penta 7.4L 454 CID & 8.2L 502 CID marine engines. Learn More
4 Cylinder 3.0L Exhaust Manifold | Evinrude/Johnson3858870BRP-3858870Qty In Stock: 0Brand: Johnson/Evinrude/OMCOEM cast iron combination intake & exhaust manifold fits OMC & Volvo Penta 3.0L marine engines. Learn More© 2025 Marine Parts Source. All Rights Reserved.