Shipping Chart | Returns Policy | Cart Checkout | Contact Us | Why our prices are so low | Live Chat   Search:           Your cart   Cart is empty    View cart Checkout      Categories Fishing BBQ Grills Air Conditioning Units Anchors & Accessories Apparel Batteries and Chargers Boating Accessories Coolers Deck Plates Dock Products Electrical Electronics Engine Parts & Accessories Fiberglass Materials and Resins Filters Fishing Fuel Filters Fuel Treatments Gauges Hardware Honda Generators Honda & Mercury Outboard Engines Lights MerCruiser Engines Paint Nautical Gifts Navigation Trim Tabs Propellers Pumps & Accessories Rope Products Safety & Flotation Sanitation Sealants Seating Steering and Controls Tops & Covers Trailer Accessories      Special Gift certificates      Help Recover password Contact us FAQ Shipping/Returns Policy Why our prices are so low :: River Marine Supply:: Engine Parts & Accessories :: Manifolds :: Mercruiser Mercruiser See details Osco 4354 -4" Riser Osco 4354-4" Riser replaces mercruiser part #44354. Our price: $ 126.40 See details Osco 7114B2 Small Block V-8 Manifold Mercruiser Osco 7114B2 Small Block V-8 Manifold. Replaces Mercruiser part numbers [7114B, 87114B, 87114A8, 87114A19] Our price: $ 149.95 See details Osco 9011 - Big Block V8 Manifold Osco 9011 - V8 Manifold. Replaces Mercruiser part #89011 etc. Our price: $ 219.95 See details Osco 0879 - Elbow/Reservior [Used on Iron Manifolds] Osco 0879 - Elbow/Reservior. Replacement for Mercruiser part #90880. Our price: $ 189.95 See details Osco 6351 - Riser Osco 6351 - Riser replacement for Mercruiser Parts 76351, 60426, 49964. Our price: $ 99.95 See details Osco 8503A 3" Riser Replaces mercruiser part #98503. Will accept original Mercruiser oil filter bracket. Our price: $ 96.00 See details Manifold Gaskets (sold in pairs) 2 Osco Gaskets for whichever Manifold you order. From Head to Manifold. Market price: $ 19.95 Our price: $ 13.95 , save 30% See details Osco 8759 Mercruiser Manifold Manifold that fits 250 and 292 cu.in. GM inline six cylinder engines. Replaces Mercruiser#59759. Uses mounting kit 8759-MK. Our price: $ 409.50 See details Manifold Gaskets from Manifold to Riser Gasket will be shipped based on the Manifold and Riser you order. Our price: $ 3.95 See details Osco 9745 Mercruiser Manifold Fits 229 and 262 cu.in. GM V6 engines and replaces Mercruiser #s' 99745 and 99746. This manifold fits both sides of engine and uses mounting kit 9745-MK. Our price: $ 195.00 See details Osco 5604 and 5603 Mercruiser Manifold 5604(Port) and 5603(Starboard) are log style manifolds that fit 302-351 cu.in. Ford small block engines. These replace Mercruiser #'s 54100 and 65604 using mounting kit 590-MK Our price: $ 231.00 See details Osco 7423B, 7235B, and 7235B-A Mercruiser Manifolds 7234B Manifold is log style and fits 305-350 cu.in. GM small block V8 engines. Replaces Mercruiser #77234B. 7235B starboard Manifold is log style and fits 305 and 350 cu.in. GM small block V8 engines. Replaces Mercruiser#77235B 7235B-A starboard manifold uses V drive applications where th... Market price: $ 299.99 Our price: $ 240.00 , save 19% Mercruiser

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