Silicone Hump Hose Coupler 76mm ID Red, Intercooler & Intake Pipe -50 to +180C 5.5mm Wall, 4 Ply Polyester 87mm Outside Diameter (OD) Absorbs Engine Movement Race-Style Gloss

📏 76mm (3") INTERNAL DIAMETER (ID) HUMP HOSE - 5.5mm wall and an Outside Diameter (OD) of 87mm. 102mm long overall with the flexible hump in the middle. Match the ID to the outside of the pipe or outlet it pushes onto. 🔧 FLEXIBLE HUMP COUPLER - The hump in the middle flexes to absorb engine movement and vibration, so joints are not pulled apart or cracked. Typical uses at this size: intercooler and charge pipes, large bore induction and air intake pipework, and performance radiator hoses. For air, water and coolant; not suitable for fuel or oil (choose our Fluoro Lined fuel and oil hose for those). 🌡️ -50°C TO +180°C OPERATING RANGE - Rated -50°C to +180°C with a peak of +250°C, so it copes on charge air and intake pipework next to a hot turbo, and on large coolant circuits. Working pressure 3.5 bar, burst pressure 10.5 bar (3:1 safety factor). 🛡️ SAE J20 R3, 4 PLY POLYESTER REINFORCED - Smooth extruded silicone inner with 4 layers of polyester fabric in the 5.5mm wall, so it holds its shape under pressure and resists swelling. The silicone resists ozone, UV light, weathering and ageing, so it lasts outdoors and in the engine bay without perishing. 🔴 RED - FITTING TIP - Push the hose fully onto the pipe, then use hose clips whose range covers about 87mm (the Outside Diameter). Red silicone gives a bold race-style look that makes joints and clips easy to check. Also available in other colours and sizes.