ID 5 inch(127mm) Straight Silicone Hose Coupler for

TuoLauthon’s 5" (127mm) straight silicone hose coupler is a heavy-duty, 4-ply reinforced connector for turbo, intake, intercooler, and exhaust piping that ships with two stainless steel T-bolt clamps for a leak-resistant fit.

This silicone coupler is built to join round pipes where durability, temperature tolerance and secure clamping matter. With a 127mm inner diameter, 76mm length, and 5mm wall thickness reinforced by four polyester layers, it’s designed to handle demanding automotive, marine and industrial air-handling applications. The kit includes two high-quality stainless steel T-bolt clamps so you can install it immediately without buying extra hardware.

How does this coupler cope with extreme temperatures and pressures?

The silicone compound and multi-layer reinforcement extend operating range and structural integrity. It endures wide thermal swings and resists collapse under typical boost conditions, making it suitable for many forced-induction and charge-air systems.

• Temperature range: -76°F (-60°C) to +500°F (+260°C)
• Working pressure range: 0.3–0.9 MPa (43.5–130.5 PSI)
• Bursting pressure: 2.0 MPa
• 4-ply polyester reinforcement for dimensional stability

Will this fit my intercooler or intake piping?

The coupler’s nominal inside diameter is 127mm (5 inches) and the body length is 76mm (3 inches), so it fits standard 5" tubing joins. Measure your pipe OD to confirm a match with the inner diameter specification before ordering.

• Inner diameter: 127mm / 5 inches
• Leg length: 76mm / 3 inches for short joins
• Compatible with round turbo, intake, and intercooler pipes
• Not compatible with oil, gasoline, or petroleum-based fluids

What hardware is included and how secure is the connection?

The package contains two stainless steel T-bolt hose clamps engineered to form a tight, leak-resistant seal when properly torqued. T-bolt clamps distribute clamping force evenly around the circumference, reducing pinch points and improving long-term reliability compared with standard worm-gear clamps.

• Includes 2 high-quality stainless steel T-bolt clamps
• Designed for a leak-free connection when tightened to manufacturer torque
• Stainless steel resists corrosion in marine and outdoor environments
• Clamp size fits the 5" coupler without additional purchases

How durable is the silicone construction for real-world use?

The combination of premium silicone and four layers of polyester reinforcement delivers strong tear resistance and UV/ozone resilience. This makes the coupler well suited for exposed installations and repeated thermal cycling found in automotive and industrial systems.

• High-quality silicone resists UV, ozone and temperature degradation
• 4-ply reinforcement prevents collapse under vacuum or boost
• Suitable for marine and industrial environments with proper application
• Do not use with petroleum-based fluids or fuels

Who is this for: The TuoLauthon 5" straight silicone coupler is aimed at mechanics, DIY tuners, performance shops and fabricators who need a compact, durable connector for 5" tubing in intercooler, intake, turbo piping, or exhaust-related air pathways. It’s also useful for marine and industrial air-handling setups where high temperature resistance and reliable clamps are required. If you need a different diameter, length, or chemical compatibility (petroleum resistance), choose an alternative specifically designed for those fluids or sizes.