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Tubing Couplers
If your project requires any sort of custom air ducts—such as for cold air intakes, turbo or boost pipes, or HVAC systems—Summit Racing Equipment is the...
If your project requires any sort of custom air ducts—such as for cold air intakes, turbo or boost pipes, or HVAC systems—Summit Racing Equipment is the place to find the couplers, clamps, elbows, joiners, and adapters you need to connect it all together.
Top Brands
Summit carries couplers from trusted brands like K&N, AEM Induction, Airaid, Spectre Performance, Vibrant Performance, Dorman, Turbonetics, Mishimoto, and many more. Choose from silicone, aluminum, rubber, and plastic, in a variety of sizes and bends.
If your project requires any sort of custom air ducts—such as for cold air intakes, turbo or boost pipes, or HVAC systems—Summit Racing Equipment is the place to find the couplers, clamps, elbows, joiners, and adapters you need to connect it all together.
Top Brands
Summit carries couplers from trusted brands like K&N, AEM Induction, Airaid, Spectre Performance, Vibrant Performance, Dorman, Turbonetics, Mishimoto, and many more. Choose from silicone, aluminum, rubber, and plastic, in a variety of sizes and bends.
Showing In Stock Items. Show All 49 Items.
Air Intake Tube Coupler; Air Intake Reducer Coupler; Black; Connects 4 in. Dia. Intake Tube To 3 in. Dia. Comp
Part Number: SPE-9761
Estimated Ship Date: Today
Estimated Ship Date: Today
Silicone Hose, Coupler, Straight, Black, 4.00 in. Inlet/3.00 in. Outlet Diameter, 3.0 in. Length, Each
Part Number: PPE-515403003
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, 45 Degree Elbow, Silicone, Black, 3.000 in. ID, 3.000 in. OD, 5.000 in. Length, Each
Part Number: PPE-515303045
Estimated Ship Date: Today
Estimated Ship Date: Today
Silicone Hose, Coupler, 45 Degree Elbow, Black, 4.00 in. Inlet/4.00 in. Outlet Diameter, 5.0 in. Length, Each
Part Number: PPE-515404045
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Tubing Coupler, 90 Degree Elbow, Silicone, Black, 3.000 in. ID, 3.000 in. OD, 3.000 in. Length, Each
Part Number: PPE-515303090
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Silicone Hose, 90 Degree Elbow, Black, 3.500 in. Inlet/Outlet Diameter, 3.0 in. Length, Each
Part Number: PPE-515353590
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, 90 degree Elbow, Silicone, Black, 5.00 in. Inlet/Outlet Diameter, Each
Part Number: PPE-515505090
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Silicone Hose, Coupler, Straight, Black, 5.00 in. Inlet/4.00 in. Outlet Diameter, 5.0 in. Length, Each
Part Number: PPE-515504005
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Tubing Coupler, 4.00 in Inlet, 3.500 in Outlet, 3.00 in Length, Straight, Silicone, Black, Each
Part Number: PPE-515403503
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, Straight, Silicone, Black, 3.000 in. Inlet/Outlet Diameter, 3.875 in. Length, Each
Part Number: PPE-115900900
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
6.0" > 4.0" x 3" L 6mm 5Ply Reducer
Part Number: PPE-515604003
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, 90 degree Elbow, Silicone, Black, 2.000 in. Inlet/Outlet Diameter, Each
Part Number: PPE-515202090
Estimated Ship Date: Today
Estimated Ship Date: Today
Silicone Hose, Coupler, Straight, Black, 5.00 in. Inlet/4.00 in. Outlet Diameter, 3.0 in. Length, Each
Part Number: PPE-515504003
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, Straight, Silicone, Black, 5.000 in. Inlet/Outlet Diameter, Each
Part Number: PPE-515505005
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Tubing Coupler, 30 degree Elbow, Silicone, Black, 3.000 in. Inlet/Outlet Diameter, Each
Part Number: PPE-115900600
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Silicone Hose, Coupler, Straight, Black, 5.50 in. Inlet/4.00 in. Outlet Diameter, 3.0 in. Length, Each
Part Number: PPE-515554003
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, Straight, Silicone, Black, 3.500 in. ID, 3.000 in. OD, 5.000 in. Length, Each
Part Number: PPE-515353005
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Silicone Hose, Coupler, 90 Degree Elbow, Black, 4.00 in. Inlet/4.00 in. Outlet Diameter, 3.0 in. Length, Each
Part Number: PPE-515404090
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Tubing Coupler, 45 degree Elbow, Silicone, Black, 2.875 in. Inlet/Outlet Diameter, Each
Part Number: PPE-115900200
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Silicone Hose, Coupler, 90 Degree Elbow, Black, 4.50 in. Inlet/4.50 in. Outlet Diameter, 3.0 in. Length, Each
Part Number: PPE-515454590
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Silicone Hose, Coupler, Straight, Black, 4.00 in. Inlet/3.00 in. Outlet Diameter, 5.0 in. Length, Each
Part Number: PPE-515403005
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Silicone Hose, Coupler, 45 Degree Elbow, Black, 4.50 in. Inlet/4.50 in. Outlet Diameter, 5.0 in. Length, Each
Part Number: PPE-515454545
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Silicone Hose, 45 Degree Elbow, Black, 3.500 in. Inlet/Outlet Diameter, 5.0 in. Length, Each
Part Number: PPE-515353545
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Tubing Coupler, 4.00 in Inlet, 3.500 in Outlet, 5.00 in Length, Straight, Silicone, Black, Each
Part Number: PPE-515403505
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
Tubing Coupler, Straight, Silicone, Black, 2.500 in. Inlet/Outlet Diameter, 6.250 in. Length, Each
Part Number: PPE-115901000
Not Yet Reviewed
Estimated Ship Date: Mar 12, 2026 if ordered today
Estimated Ship Date: Mar 12, 2026 if ordered today
