Marine Exhaust Couplers and Fittings
Even the strongest boat exhaust systems can eventually suffer damage from heavy use. Our inboard exhaust connectors and fittings let you quickly repair a marine exhaust or design a custom layout to maximize efficiency, power and safety. Shop for dozens of exhaust coupler products made of resilient materials like powder-coated cast iron and rustproof fiberglass. We have 45- and 90-degree exhaust elbows, Y-fittings, return loops, tee reducers and other connectors. Straight exhaust pipes can be ordered by the foot in almost any diameter.
Marine Parts Source also has brass fittings for joining the pipes to the exhaust manifold, letting water circulate in wet exhaust systems. These include NPT barbs at straight and 90-degree angles. We carry the leading marine exhaust brands such as Centek, Barr Marine and Buck Algonquin for boat owners and professional technicians. Call us toll-free at 866-388-0390 Monday through Friday if you have questions about ordering boat exhaust adapters.
Exhaust Connectors
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4-Inch Vernatube Exhaust Tubing, Sold Per Foot | Centek Industries 1100504CENTEK-1100504Qty In Stock: 6Brand: CentekCorrosion-resistant high-temperature e-glass exhaust tubing designed to minimize exhaust gas and cooling water flow restrictions.
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3 in. x 3 in. x 4 in. Fiberglass Exhaust Y Fitting | Centek Industries 1200256CENTEK-1200256Qty In Stock: 4Brand: CentekCombines two 3-inch inlet connections to a single 4-inch outlet.
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45 degree Fiberglass Reducer Elbow | Centek 1200420CENTEK-1200420Qty In Stock: 11Brand: Centek3-1/2 inch to 4 inch 45 Degree Fiberglass Reducer Elbow
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Standard Fiberglass Y Fitting - 4 in. x 4 in. x 4 in. | Centek Industries 1200316CENTEK-1200316Qty In Stock: 3Brand: CentekLearn MoreCentek WYE fittings are made from the same corrosion-resistant high-temperature resin used in Vernatube. Precise outer dimensions assure easy connections.
1/2 NPT x 1 inch Brass Straight Hose Barb Fitting | Barr 50-512-017BARR-50-512-017Qty In Stock: 16Brand: Barr MarineIdeal for plumbing the water ports of marine exhaust manifolds. Learn More
3 in. OD 45 Degree Fiberglass Exhaust Elbow | Centek Industries 1200109CENTEK-1200109Qty In Stock: 1Brand: Centek45-degree elbows are designed for marine wet exhaust hose connections where a bend is needed, especially instances where hose may buckle, kink, or resist flow. 3 in. outside diameter.
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5-Inch Vernatube Exhaust Tubing, Sold Per Foot | Centek 1100506CENTEK-1100506Qty In Stock: 15Brand: CentekCorrosion-resistant high-temperature e-glass exhaust tubing designed to minimize exhaust gas and cooling water flow restrictions.
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45 degree Reducer Elbow | Centek 1200468CENTEK-1200468Qty In Stock: 9Brand: Centek3 to 4 inch 45 degree Reducer Elbow
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2-Inch Vernatube Exhaust Tubing, Sold Per Foot | Centek 1100512CENTEK-1100512Qty In Stock: 19Brand: CentekCorrosion-resistant high-temperature e-glass exhaust tubing designed to minimize exhaust gas and cooling water flow restrictions.
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90 degree Exhaust Elbow Adaptor | Barr 20-0093PBARR-20-0093PQty In Stock: 6Brand: Barr MarineCast iron elbow with 3 in. ID exhaust hose is designed to couple 3 in. ID exhaust connections to either 3 1/2 in. or 4 in. exhaust connections in marine exhaust systems. Learn More
EXHAUST- CONNECTOR 4 90 DEGBUCK-40EE40090SQty In Stock: 0Brand: Buck AlgonquinEXHAUST- CONNECTOR 4" 90 DEG Learn More© 2025 Marine Parts Source. All Rights Reserved.