Reinforced Silicone Tubing Hose — Fuel, Vacuum & Coolant Line | Red Blue Black

Match the inner diameter (ID) to your fitting or barb OD. For example, a 6mm (1/4") barb needs a 6mm ID hose. The outer diameter determines clearance in tight spaces. If you're between sizes, generally size down for a snug, leak-resistant fit. Each variant is labeled as ID × OD so you can confirm both dimensions before ordering.

Divide millimeters by 25.4 to get inches. Common quick conversions: 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 1/2", 16mm ≈ 5/8", 19mm ≈ 3/4", 25mm ≈ 1", 32mm ≈ 1-1/4". These are the most common vacuum hose and fuel line sizes used in US automotive and small engine applications.

Reinforced silicone hose of this type is generally rated for vacuum and low-to-moderate pressure applications. Working pressure typically ranges up to 30–50 psi depending on wall thickness and diameter — smaller diameters with thicker walls generally handle higher pressures. For high-pressure fuel injection lines, contact us to confirm suitability for your specific application.

Yes. Silicone is inherently UV-resistant and handles a wide temperature range, typically -65°F to 350°F (-54°C to 177°C). It resists ozone, moisture, and most engine fluids, making it well-suited for outdoor power equipment, engine bays, and exposed installations where standard rubber hose would crack or harden over time.

This hose is generally compatible with petrol (gasoline), diesel, coolant/antifreeze, water, and air/vacuum. It is not recommended for concentrated acids, ketones (such as acetone), or brake fluid. In most cases it performs well with the fluids found in small engines, automotive cooling systems, and fuel delivery. Contact us to confirm compatibility with any specialty fluid.

No. All three color variants are identical in material, wall construction, and dimensions. Color is purely aesthetic. Red and Blue are popular for custom engine builds and performance fabrication where visibility matters; Black is preferred for stock-look restorations or when the hose will be hidden.

Yes. Each piece ships as a 1-meter (≈39.4") straight cut length. You can trim it to any shorter length using a sharp utility knife or hose cutter. A clean, square cut ensures the best seal against barb fittings. A hose clamp is recommended for any pressurized fuel or coolant connection.

For vacuum and low-pressure vent lines, a snug barb fit is generally sufficient without a clamp. For fuel lines (petrol or diesel) and coolant lines under engine pressure, a worm-drive hose clamp is strongly recommended to prevent leaks. In most cases, use a clamp sized to the hose OD — for example, a 12mm OD hose typically uses a 10–16mm clamp range.