Availability
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 250 Items.
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 4.00 in. Inlet, 3.50 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3258102089
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 0.75 in. Inlet, 0.50 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259019013
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Hose Tubing Coupler, 45 Degree, Silicone, Blue, 3.25 in. Inlet, 3.25 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3273000830
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 2.00 in. Inlet, 1.75 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259051045
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 2.50 in. Inlet, 2.00 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3258063051
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 2.50 in. Inlet, 2.25 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3259063557
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 2.25 in. Inlet, 2.00 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259057051
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 3.50 in. Inlet, 3.00 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3258089076
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 1.50 in. Inlet, 1.38 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259038035
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 1.75 in. Inlet, 1.38 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259045035
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 1.75 in. Inlet, 1.38 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3258045035
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 0.75 in. Inlet, 0.63 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259019016
Not Yet Reviewed
Estimated Ship Date: Feb 20, 2026 if ordered today
Estimated Ship Date: Feb 20, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Silicone, Blue, 1.25 in. Inlet, 1.25 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3273000320
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Silicone, Blue, 3.25 in. Inlet, 3.25 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3274000830
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer. Silicone, Blue, 4.00 in. Inlet, 3.50 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3278102089
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 1.25 in. Inlet, 0.75 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3259032019
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 3.00 in. Inlet, 2.38 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3258076060
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 0.75 in. Inlet, 0.63 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3258019016
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 2.25 in. Inlet, 2.00 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3258057051
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 2.38 in. Inlet, 2.00 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3258060051
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Hose Tubing Coupler, 90 Degree, Reducer. Silicone, Blue, 3.00 in. Inlet, 2.50 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3279076063
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 3.13 in. Inlet, 3.00 in. Outlet, 4.75 in. Leg Length, Each
Part Number: BPU-3259080076
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 135 Degree, Silicone, Blue, 0.88 in. Inlet, 0.88 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3275000220
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 0.63 in. Inlet, 0.50 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3258016013
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 0.88 in. Inlet, 0.75 in. Outlet, 4.00 in. Leg Length, Each
Part Number: BPU-3258022019
Not Yet Reviewed
Estimated Ship Date: Feb 23, 2026 if ordered today
Estimated Ship Date: Feb 23, 2026 if ordered today
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