Need a hose that fits tight bends, handles vacuum pressure, and withstands tough working conditions? Custom silicone coolant hoses are the answer. They perform reliably in environments involving water-air coolant, boost pressure, and light oil mist, making them ideal for automotive engine compartments, large diesel trucks, off-road heavy equipment, and power generators. Plus, they meet the requirements of SAE J20 R4 specification.
What makes silicone the superior choice? Unlike traditional rubber coolant hoses, silicone coolant hose offers a much higher temperature rating, operating smoothly from -55°C up to 200°C. It retains flexibility over time and resists cracking, ozone attack, sunlight, and many chemicals. To add extra strength, these hoses are often built with 3-ply or 4-ply polyester reinforcement, with wall thickness options of 4.5mm and 5.0mm.
Best of all, every aspect of the silicone coolant hose can be tailored to your needs—diameter, shape, length, and color are all customizable. Whether you have a simple sketch or a physical sample, simply send it to us and we will create a custom coolant hose that fits your application perfectly. High-temperature rated options are also available upon request.