90 Degree ID 3inch to 4inch Elbow Coupler Silicone Hose

This reinforced silicone elbow joins 3-inch to 4-inch turbo, supercharger or intake piping while keeping pressure leaks to a minimum. Made from four-layer silicone with a 5 mm wall, the coupler is rated for extreme temperature swings (from -60 °C to 230 °C) and a bursting pressure of 2 MPa, and it ships with two nylon-insert stainless steel T-bolt clamps for secure, long-lasting seals. The design targets demanding automotive, marine and industrial installations where boost integrity and heat resistance matter.

How does this elbow perform under high heat and cold?

The 4-ply silicone construction and high-temperature formulation maintain flexibility and strength across wide temperature ranges. It resists brittleness in cold starts and softening at elevated temperatures common to turbo and charge-air systems.

• Temperature range: -60 °C to 230 °C (-140 °F to 428 °F)
• 4-ply reinforcement for dimensional stability
• 5 mm wall thickness to resist collapse and abrasions

Can it handle boost pressure and harsh operating conditions?

Yes—this elbow is engineered for pressurized intake and intercooler use. The hose's 2 MPa burst rating and 0.3–0.9 MPa working pressure window provide a safety margin for most street and many high-performance applications when properly clamped.

• Bursting pressure: 2 MPa (approx. 300 PSI)
• Work pressure range: 0.3 to 0.9 MPa
• Includes two heavy-duty T-bolt clamps for leak-proof joints

What installation and compatibility should I expect?

The elbow adapts a 3" (76 mm) inlet to a 4" (102 mm) outlet at a 90° angle and is suitable for universal piping layouts. The silicone's flexibility simplifies alignment, while the supplied T-bolt clamps with nylon insert lock nuts secure the connection in vibration-prone environments.

• Size: 3 inch to 4 inch (76 mm to 102 mm) 90° elbow
• Universal fit for turbo, supercharger, intercooler and intake piping
• Two stainless steel T-bolt clamps included for robust sealing

How does the product resist environmental wear like UV or ozone?

The silicone compound is formulated to be UV- and ozone-resistant, extending service life in exposed engine bays and marine settings. That chemical resistance helps prevent cracking and surface degradation that can cause leaks over time.

• UV and ozone resistant silicone for longer outdoor durability
• Suitable for marine and industrial applications in addition to automotive
• High-quality materials reduce maintenance and premature replacement

Who is this for: Technicians, tuners and DIY mechanics who need a durable, heat-tolerant 90° transition between 3" and 4" piping—especially in turbocharged, supercharged, intercooler or demanding industrial systems. The Ruikarhop elbow is ideal when you require a reinforced, reliable silicone connection with heavy-duty stainless T-bolt clamps included for immediate installation.