Silicone Coolant Hose for Sale
RONTEIX provides various types of silicone coolant hoses, including ID/OD diameter, wall thickness, length, bend angle, and shape.
- Benefits of Silicone Coolant Hoses
- Our hoses do not crack, harden, soften, or swell due to temperature and pressure changes.
- Our bend angles, ID/OD, leg lengths, and wall thicknesses are perfectly matched to various vehicle models.
- We support minimum order quantities (MOQs) for mixed SKUs, as well as single-unit sample production.
If you would like to order custom silicone coolant hoses for specific models or with enhanced performance, please contact us immediately.
Silicone Coolant Hose vs Rubber Coolant Hose
RONTEIX silicone coolant hoses can be manufactured as 45°, 90°, 135°, or 180° elbows, as well as reducer hoses. They resist collapsing and bulging, and do not loosen or deform under continuous high-pressure pulses or thermal cycling.
RONTEIX rubber coolant hoses are made using an extrusion process and vulcanized in a simple mold, resulting in lower precision. They are unsuitable for complex routing and prone to bursting at sharp bending angles.
Our rubber coolant hoses are less expensive than silicone coolant hoses and are more suitable for bulk purchases. Our silicone coolant hoses are suited for custom modifications and performance upgrades.
Silicone Coolant Hose by Diameter
RONTEIX silicone coolant hoses can be customized to the following inner diameters based on engine size, vehicle model, and specific requirements.
8 mm in inside diameter, with 2-ply reinforcements, 14 mm OD outer diameter, 4.5 mm thickness.
25 ft max length, with polyester reinforcements, burst pressure rating 250PSI, dedicated piping used to support the circulation loop.
Pressure rating 110 PSI, with polyester fabric reinforcements, 12 ft in length, 0.254 lbs in weight.
19 mm in diameter, suitable for use as a heater hose and bypass hose in high-performance vehicles, 12 ft in length.
With 90 PSI max working pressure, resistant to electrochemical degradation, suitable for turbocharger and industrial marine cooling tubes.
Designed to meet the cooling requirements of medium-horsepower engines, 32 mm in diameter, with a wall thickness of 4.5 mm.
36 inches in length, elbow angle 0°, with 80 PSI max working pressure, 38 mm in diameter, suitable for V8–V10 large-displacement engines.
41 mm in inside diameter, with 100 PSI max working pressure, used for cooling heavy-duty vehicles and construction machinery.
Choose from molded bent, straight, or reducer hoses, suitable for the primary cooling circuits of trucks, buses, or excavators.
With 4-ply reinforcements, suitable for heavy-duty trucks and commercial vehicles, heat- and corrosion-resistant.
Silicone Coolant Hose by Feature
RONTEIX silicone coolant hoses are heavy-duty, flexible, and designed in various shapes to fit the space inside the vehicle. Compared to OEM coolant hoses, we can take full advantage of customization to ensure performance.
With polyester or aramid reinforcements, available in standard lengths of 3′ to 12′, suitable for everyday utility vehicles and heater ducts.
With a wall thickness of 5 mm, suitable for mainstream performance cars and maintaining a stable diameter even under high pressure.
Minimal resistance and minimal pressure loss, suitable for radiator inlet and outlet pipes and the intake/exhaust straight sections of turbochargers.
Reduces turbulence, ensures smooth coolant flow, minimizes potential leak points, and is designed for compact spaces.
Ensures a smooth, airtight transition from the larger tube to the smaller tube, eliminates leaks, and optimizes the flow path.
Used to connect the engine and heater core, assisting in engine cooling, resistant to torsion, resistant to aging, and not easily torn.
Molded in a single step using a mold-curing process, with 3–5 layers of polyester or aramid reinforcement, and capable of in-situ replacement.
With 3-ply reinforced polyester, UV- and ozone-resistant, uses O-rings to maintain pressure and prevent leaks.
Silicone Coolant Hose by Degree
RONTEIX silicone coolant elbow hoses are available in the following angles to meet requirements such as reducing stress at connection points and accommodating space and angle constraints.
With an L-shaped bend, designed for compact right-angle spaces, saving both longitudinal and transverse space in the engine compartment.
Offers lower resistance to coolant flow, allowing it to navigate around minor obstacles.
For complex engine layouts, especially when the angle between the connection between two interfaces and the horizontal line is too large.
Using a single-piece molded design solves the problem of non-standard routing and improves layout flexibility.
Silicone Coolant Hose by Color
RONTEIX silicone coolant hoses are color-coded to highlight key cooling lines and areas, meeting the needs of customers seeking customization. If you would like other colors, please email us.
Ideal for performance upgrades, such as radiator inlet and outlet hoses, turbocharger inlet hoses, and intercooler hoses.
Maintains the original factory appearance, blends seamlessly into the engine compartment, absorbs heat, and resists fading.
Designed for personalized customization, used to label coolant circuits, and paired with specific brands.
Used for piping near the exhaust manifold and the hot end of the turbocharger to distinguish hot media piping.
Feature box
RONTEIX silicone coolant hoses are designed to absorb and dissipate heat, maintaining the engine at its optimal operating temperature.
Withstands temperatures ranging from -60°C to 250°C without structural collapse, retains its resilience after 2 hours of baking, and resists creep.
SCD-resistant, completely resistant to modern coolant additives, is not oxidized by ozone, and is not soluble in oil.
With a minimum lifespan of 10 years, lasts for the vehicle’s entire life cycle, maintaining its smoothness and elasticity without leaking.
Resistance to radial expansion, bursting, and tearing, maintenance of joint sealing, and dimensional stability.
With high resistivity, prevents short circuits and fires, maintains coolant temperature, protects surrounding components, and prevents burns.
ECD-resistant and mechanically stress-resistant, ensuring the sealing force at the clamp never diminishes.
Supports OEM replacement and comparison-based selection, automotive modifications, engine swaps, and turbocharger upgrades.
In addition to conveying standard compressed air, it is compatible with oxygen, nitrogen, carbon dioxide, and inert gases.
Customize Your Silicone Coolant Hose
RONTEIX offers 3- to 6-ply fabrics, aramid, steel wire, fiberglass, and other reinforcements to enhance pressure resistance. We can customize silicone hoses for cooling systems in vehicles from brands such as BMW, Nissan, Toyota, and Ford, helping you achieve personalized performance upgrades.
Silicone Coolant Hose Kits
RONTEIX silicone coolant hose kits are one-stop, complete cooling system solutions designed specifically for particular vehicle models or engines. Our kits include the main coolant hose, heater hose, bypass/return hose, overflow hose, matching clamps, and installation accessories.
Easy to Install
Each part is molded to match the original factory routing. It can be replaced in situ without requiring any adjustments to surrounding components, ensuring a stress-free installation.
Consistent Performance
Uniform specifications and ply counts throughout the system ensure consistent pressure and temperature resistance, with no weak links. We clearly specify the temperature range, operating pressure, and burst pressure.
If you are interested in silicone coolant hose kits, please send us your requirements.
How to Install Silicone Coolant Hoses?
Step 1: Ensure the engine has cooled down completely, then open the drain plug on the radiator cap to drain the coolant.
Step 2: Remove the retaining clips from both ends of the old hose, then gently twist it to break the seal; avoid using sharp tools that could cause scratches.
Step 3: Using properly sized clamps, install the new silicone coolant hose into its original position within the cooling system. Tighten the clamps to prevent deformation or damage.
How to Choose the Right Silicone Coolant Hose for Your Vehicles?
Define the Application & Environment
- You need to identify whether it is part of the main radiator circuit, heater hose, turbocharger cooling system, or a bypass line.
- Assess whether the line passes through tight spaces and requires molded elbows or straight sections.
- Also, determine if it will come into contact with engine oil, fuel, or other fluids; contact with oils necessitates the use of fluorosilicone or PTFE liners.
- It is necessary to determine in advance whether to install on high-vibration components to avoid friction and wear.
Get the Dimensions Right
Measure the inner diameter, length, bend length, and leg length of straight and bent pipes.
Select the Right Construction
3-ply, 4-ply, and 5-ply reinforcements determine the respective strength and pressure resistance. You need to ensure that the hose’s maximum temperature rating exceeds the system’s highest operating temperature.
Verify Quality & Compatibility
Ensure the hoses are compatible with the specific type of coolant used; verify that the inner walls are smooth and uniform, the outer layers are free from blistering or uneven coloration, and the parts are suitable for the specific vehicle model.
Resource
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Silicone Coolant Hose vs Vacuum Hose
RONTEIX silicone coolant hoses are used to circulate coolant between the engine, radiator, water pump, and heater core. Our vacuum hoses primarily serve to transmit pneumatic signals, conveying vacuum pressure to various control components.
- In terms of material, our vacuum hoses are primarily made of standard rubber, plastic, or nylon; their small size eliminates the need for heavy fiber reinforcement layers. In contrast, coolant hoses utilize silicone and incorporate multiple layers of polyester or aramid fibers to withstand internal system pressure.
- In terms of shape, most vacuum hoses are straight pipes that can be cut to length during installation or bendable using right-angle connectors. Coolant hoses can be molded into specific shapes, such as S-shaped, U-shaped, and T-shaped.
- Our silicone coolant hoses are required to withstand the internal pressure of the cooling system, typically operating at 15-30 PSI, with a burst pressure of 3:1. Vacuum hoses, on the other hand, need to withstand vacuum suction at 20-30 inHg, with operating temperatures below 100-140℃.
If you would like to know more details, you can send us an email.
Quality Test
After being molded and vulcanized, RONTEIX silicone coolant hoses must undergo dimensional testing, pressure testing, leakage testing, and temperature resistance testing. We guarantee that every hose fully complies with the standards of various countries and vehicle models. If you are looking for high-quality, consistent silicone coolant hoses, please contact us.
We used a vernier caliper and a digital caliper to take multiple measurements of the outer and inner diameters at a distance of 25 mm from the end of the hose, while carefully controlling the amount of force applied. We measured the wall thickness at a distance of 15 mm from the end of the hose, taking multiple measurements around the circumference.
We need to conduct preliminary pressure resistance testing, control the pressure-increase procedure, and capture the moment of burst to record the peak pressure and determine whether the product will leak or deform under stable pressure. This allows us to verify the hose’s leak tightness, structural integrity, and maximum pressure rating under static pressure.
More About Silicone Coolant Hose
RONTEIX silicone coolant hoses are exported to Canada, the UK, Africa, South America, the United States, and other regions. Our hoses are a perfect fit for BMW, Toyota, Nissan, and other vehicle models. Please email us right away.
- Data Sheet
- Production Video
- Gallery
Silicone Coolant Hose | |
| Item | Specification |
| Material | Silicone Rubber / Fluorosilicone Rubber |
| Reinforcement | Polyester / Aramid / Nomex |
| Ply | 3–6 Ply or OEM |
| Wall Thickness | 4–7 mm or OEM |
| Temperature Range | -60°C to +260°C (-76°F to +500°F) |
| Working Pressure | 0.3–1.2 MPa |
| Shapes | Straight / 23° / 45° / 67° / 90° / 135° / 180° Elbows / Reducers |
| Size | Standard Sizes or Fully Customized |
| Colors | Blue / Red / Black / Green / Orange / Yellow / Purple / White / OEM |
| Customization | Size / Shape / Color / Reinforcement / Coating / Logo |
Testimonials
- It is flexible and looks good. Let’s see how long it will last.AdrianPurchasing Assistant
The goods I ordered were shipped fast and were well taken care of. Upon checking the goods, the quality is unmatched by existing suppliers of hoses here in the local market. The price of the goods is very reasonable. I will order again soon
SelinaDepartment ManagerWe have been in contact for several months now, and everything is so easy to arrange. I have found my business partner, and I would recommend this supplier to anyone.
AvaPurchaser
RONTEIX silicone coolant hoses can withstand temperatures from -60℃ to 200℃. They will not become brittle, crack, soften, or deform under extreme cold or high-load and high-temperature conditions.
Yes, our silicone hoses are suitable for coolant systems and are the perfect choice for coolant. If you plan to use RONTEIX silicone coolant hoses in contact with engine oil or fuel vapors, we recommend choosing fluorosilicone hoses or PTFE-lined hoses.
RONTEIX silicone coolant hoses should not be forced into place by bending or stretching them.
Before installation, clean any residual old coolant, rust, or sharp burrs from the fittings. You can apply a small amount of silicone grease or pure water to the metal fittings; do not use petroleum jelly or dish soap.
If the hose is difficult to insert, you can use a heat gun or hot water to slightly warm the end of the silicone hose, then push the hose straight into the fitting. Twisting the hose can cause it to bunch up, resulting in an uneven seal.
RONTEIX silicone coolant hoses typically leak due to improper clamp installation, installation stress or incorrect sizing, system overpressure or overheating, or chemical corrosion.
Improper Clamping
Insufficient torque leaves the T-bolt clamp insufficiently tightened, while overtightening crushes the pipe wall, creating a path for coolant leakage.
The solution is to tighten the T-bolt clamps or constant-force spring clamps to the specified torque, then recheck after a warm-up cycle.
Wrong Fitment
Forcibly bending a straight pipe, or using the wrong angle or length, will make it difficult to fit the pipe in.
System Over-Pressure
Due to cylinder head gasket failure, thermostat jamming, or radiator cap malfunction, the silicone hose cannot withstand high pressure and bursts or is detached.
T-Bolt Clamps
T-bolt clamps are wide and flat, allowing clamping force to be evenly distributed over a 360° wide area. They are also highly vibration-resistant and will not cut into the walls of silicone hoses. Our T-bolt clamps are primarily designed for main radiator hoses, large-diameter hoses (over 1.5 inches), and high-boost turbo applications.
Constant-Tension Spring Clamps
Spring clamps are suitable for heating pipes, bypass pipes, and narrow spaces where T-bolt wrenches cannot reach. These clamps automatically adjust to dimensional changes, maintaining constant pressure.
Wire Loop Clamps
Our wire loop clamps are ideal for professional racing modifications and compact engine bays. They provide excellent, constant tension and feature a low-profile design suitable for tight spaces.
Replacing silicone coolant hoses can significantly reduce the risk of old coolant hoses aging and bursting, thereby enhancing the reliability of the cooling system.
If you are using reinforced silicone coolant hoses, you will need to buy molded elbows or use multiple connectors for cable routing; do not attempt to bend them.
RONTEIX silicone coolant hoses have a lifespan of over 10 years, but their lifespan usually ends due to improper installation, chemical corrosion, physical damage, or system failure.
The RONTEIX official website offers a wide selection of silicone coolant hoses in various sizes, lengths, and colors. You can click the official website link to look up specific models.
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