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Boost Products USA Silicone Couplers

5.0 out of 5 stars 3 Customer Reviews

Boost Products USA silicone couplers are reinforced with textile layers to be extreme pressure resistant, and also to vacuum in your Air Charge System. The hose tub
Boost Products USA silicone couplers are reinforced with textile layers to be extreme pressure resistant, and also to vacuum in your Air Charge System. The hose tubing couplers are suitable for your intercooler system, intake system, water lines or similar, as they can withstand up to 5 Bar and temperatures up to 220 degrees C (not to be used as fuel or oil line). Boost Products silicone hoses have achieved, and many times even exceeded the quality of silicone hoses, compared to ones made by other well-known manufacturers in quality tests. The silicone is durable and flexible, stable, and color-proof for many years.
Boost Products USA silicone couplers are reinforced with textile layers to be extreme pressure resistant, and also to vacuum in your Air Charge System. The hose tubing couplers are suitable for your intercooler system, intake system, water lines or similar, as they can withstand up to 5 Bar and temperatures up to 220 degrees C (not to be used as fuel or oil line). Boost Products silicone hoses have achieved, and many times even exceeded the quality of silicone hoses, compared to ones made by other well-known manufacturers in quality tests. The silicone is durable and flexible, stable, and color-proof for many years. As a matter of fact, lots of well-known companies in the tuning and motorsport areas have come to rely on these quality hose silicone couplers by Boost Products.

Results 1 - 25 of 248

Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 3.00 in. Inlet, 2.50 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3258076063

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Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 3.00 in. Inlet, 2.50 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3259076063

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Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 4.00 in. Inlet, 3.00 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3258102076

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 4.00 in. Inlet, 3.50 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3259102089

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 2.50 in. Inlet, 2.00 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3259063051

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Hose Tubing Coupler, 90 Degree, Silicone, Blue, 2.50 in. Inlet, 2.50 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3274000630

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 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

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 2.00 in. Inlet, 1.75 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3258051045

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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

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Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 2.75 in. Inlet, 2.50 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3258070063

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Hose Tubing Coupler, 90 Degree, Silicone, Blue, 1.75 in. Inlet, 1.75 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3274000450

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 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

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Estimated Ship Date: Jan 20, 2026 if ordered today

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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

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Hose Tubing Coupler, 135 Degree, Silicone, Blue, 1.25 in. Inlet, 1.25 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3275000320

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Silicone, Blue, 1.13 in. Inlet, 1.13 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3274000280

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Hose Tubing Coupler, 45 Degree, Silicone, Blue, 1.50 in. Inlet, 1.50 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3273000380

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Reducer. Silicone, Blue, 4.00 in. Inlet, 3.00 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3279102076

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 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

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Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 1.50 in. Inlet, 1.38 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3258038035

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 1.00 in. Inlet, 0.75 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3258025019

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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

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Silicone, Blue, 3.00 in. Inlet, 3.00 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3274000760

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Silicone, Blue, 1.25 in. Inlet, 1.25 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3274000320

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

Hose Tubing Coupler, 90 Degree, Reducer, Silicone, Black, 1.00 in. Inlet, 0.75 in. Outlet, 4.00 in. Leg Length, Each

Part Number: BPU-3259025019

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Hose Tubing Coupler, 45 Degree, Reducer, Silicone, Black, 2.75 in. Inlet, 2.38 in. Outlet, 4.75 in. Leg Length, Each

Part Number: BPU-3258070060

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Estimated Ship Date: Jan 20, 2026 if ordered today

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Estimated Ship Date: Jan 20, 2026 if ordered today

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