Taigoehua ID 4inch 4-Ply Straight Coupler Silicone Hose 5mm

Taigoehua's 4-inch, 4-ply straight silicone coupler is a heavy-duty 12" charge-pipe connector built with 5mm walls and two stainless steel T-clamps for reliable, high-temperature automotive performance.

Designed for turbo and supercharger plumbing, this silicone coupler combines reinforced multi-ply construction and high-temperature silicone to give you a flexible, durable joiner for intake, intercooler and compressor piping. It works across a wide temperature range and includes two corrosion-resistant stainless T-clamps so you can install a secure, leak-resistant connection faster.

How does this coupler handle high under-hood temperatures?

The Taigoehua silicone compound is rated from -140°F to 428°F, so it maintains flexibility in cold conditions and resists softening or deformation in engine-bay heat. Its 4-ply build and 5mm wall thickness improve thermal stability and help resist pressure-related expansion.

• Temperature rating: -140°F to 428°F
• Reinforced 4-ply silicone for heat endurance
• 5mm wall thickness reduces heat soak and deformation

Will it hold boost and resist bursting under high pressure?

This coupler is engineered for boosted applications with a bursting pressure rated at 2 MPa (roughly 290 psi), suitable for many custom turbo and supercharger setups. Combined with the included stainless steel T-clamps, it provides a secure seal across charge, intake, and intercooler connections.

• Bursting pressure: 2 MPa for boosted systems
• Includes 2 stainless steel T-clamps for tight sealing
• Straight 4-inch ID for standard charge-pipe joins

What are the physical dimensions and material details?

The coupler measures 4-inch inner diameter (102 mm) and 12 inches (305 mm) in length, with a 5mm thick wall and four reinforcement plies for durability. It’s molded from high-quality silicone to withstand repeated flexing, vibration, and environmental exposure.

• ID: 4 inch / 102 mm
• Length: 12 inch / 305 mm
• Wall thickness: 5 mm, 4-ply reinforcement

What applications is this best suited for?

Use this coupler whenever you need a straight, robust joiner in intake, turbo, or supercharger plumbing. It fits custom turbo piping, compressor inlets, intercooler connections, and many marine or vehicle forced-induction setups where a durable, flexible link is required.

• Custom turbo and supercharger charge piping
• Compressor and intercooler inlet connections
• Cars, boats, and other boosted vehicle applications

Who this is for: technicians, tuners and DIY enthusiasts who build or repair boosted induction systems and need a dependable straight silicone coupler that balances heat resistance, pressure capacity and long service life. The included stainless T-clamps make it a practical choice for quick, secure installations on custom projects and routine replacements alike.