Marine Exhaust Manifolds | Mercruiser | Select another manifold
We carry all gaskets in stock. 3-year warranty on all Osco & Barr manifolds & risers. Click the Mercruiser manifold images to enlarge.

Click to enlarge Part # Specs Price Mercruiser (V-6) Exhaust Manifolds 9745 Exhaust manifold. Fits 229 and 262 cu. in. (4.3) engines. V-6. Exact replacement for Mercruiser #'s 99745 and 99746. Fits both sides of engine. Three yr. warranty. $217.00 4354 Exhaust riser. 4" exhaust outlet. For late model inboard/outboard and inboards. Exact replacement for Mercruiser #44354, 807914 and 807988. $139.00 8503-A Exhaust riser. 3" exhaust outlet. For early model inboard/outboard models. Exact replacement for Mercruiser #s 98503 & 98504. $119.00 8502 Exhaust riser. 3" exhaust outlet. 0 degree riser for some early model straight inboards. Exact replacement for Mercruiser #98502 $119.00 8503-GR Gasket, restrictor. Fits center riser Mercruiser. Common use is on all raw water cooled engines. Replaces Mercruiser #27-41813. $4.00 CS-GH Gasket, manifold to cylinder head. Replaces Mercruiser #27-99757. $7.50 Mercruiser (V-8) 7114B2 Small Block V-8. Exhaust manifold. Fits 305-350 cu.in. (5.0-5.7) GM small block engines. Fits both sides of engine. Replaces Mercruiser #s 87114 and 860246. Up dated to replace all small block Mercruiser center riser manifolds. Exact replacement for Mercruiser. Three year warranty. $194.00 9011A V-8 GM Block. Exhaust manifold. Fits 454/502 cu.in. GM Big Block engines. Fits both sides of engine. Exact replacement for Mercruiser #89011. Three year warranty. $219.00 4354 Exhaust riser. 4" exhaust outlet. For late model inboard/outboard and inboards. Exact replacement for Mercruiser #44354, 807914 and 807988. $139.00 8503-A Exhaust riser, 3" exhaust outlet. For early model inboard/outboard models. Exact replacement for Mercruiser #s 98503 & 98504. 119.00 8502 Exhaust riser, 3" exhaust outlet. 0 degree riser for some early model straight inboards. Exact replacement for Mercruiser #98502. $119.00 8503-GR Gasket, restrictor, Fits center riser Mercruiser. Common use is on all raw water cooled engines. Replaces Mercruiser #27 41813. $4.00 CW-GH Gasket manifold to cylinder head. Replaces Mercruiser #27-46820. $7.50 CV-GH Gasket manifold to cylinder head. Replaces Mercruiser #27-33395. $7.50

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