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Silicone Radiator Hose Manufacturer in China

Silicone Radiator Hose Manufacturer in China

Since 2008, RONTEIX has been committed to providing silicone radiator hoses, silicone coolant hoses, silicone heater hoses, and silicone intake hoses to private car owners, auto repair shops, and distributors. Our hoses can transport coolant in high-pressure, high-temperature, and high-vibration environments, ensuring effective cooling.

  • Minimum order of one hose
  • Fully compliant with the SAE J20 R4 standard; has passed the dimensional test, burst pressure test, vacuum collapse test, cold flexibility test, heat aging test, and coolant immersion test.
  • Compliant with ISO 9001, CE, and REACH regulations.
  • Custom Silicone Radiator Hoses

Custom Silicone Radiator Hoses

RONTEIX offers customization services for silicone radiator hoses in material, shape, color, structure, and brand.
Custom Shapes: We offer silicone radiator hoses in straight, bent, T-shaped, U-shaped, S-shaped, and irregular shapes.
Custom Colors: Custom red, blue, green, black, pink, and more to meet your personalized needs.
Custom Hose Branding: We offer custom marking of information such as labels, serial numbers, dimensions, and years using heat transfer, screen printing, laser marking, and injection molding techniques.
Custom Reinforcements: We can customize 1- to 5-ply polyester, aramid, fiberglass, and stainless steel wire reinforcements.

Please email us the relevant drawings, specifications, and other requirements.

OUR PRODUCT

Silicone Radiator Hoses by Feature

RONTEIX silicone radiator hoses effectively absorb vibrations, prevent melting, and facilitate the circulation of coolant in the complex and confined interior spaces of vehicles.

Molded Silicone Radiator Hoses
Molded Silicone Radiator Hose​s

Molded as a single piece for a perfect fit, paired with a T-bolt clamp for stress-free installation.

Flexible Silicone Radiator Hoses
Flexible Silicone Radiator Hoses

Minimum elongation at break of 210%, accommodates complex routing paths, compensates for installation tolerances, and reduces vibration transmission.

Silicone Upper Radiator Hoses
Silicone Upper Radiator Hoses

Used to connect the top of the engine to the top inlet of the radiator, suitable for high-temperature, positive-pressure environments, features 3-4 reinforcement layers.

Silicone Lower Radiator Hoses
Silicone Lower Radiator Hoses

Resists negative pressure, with an anti-collapse spring, and operates at lower temperatures.

Silicone Radiator Hoses by Shape

RONTEIX offers silicone radiator hoses in the following shapes to effectively prevent risks such as coolant leaks caused by improper fit.

Straight Silicone Radiator Hoses
Straight Silicone Radiator Hoses

Primarily used for upper radiator hoses, featuring 3-4-ply reinforcement, and can be cut to fit a variety of lengths.

Bending Silicone Radiator Hoses
Bending Silicone Radiator Hoses

Primarily used for lower radiator hoses, suitable for OEM replacement, available in pre-formed or manually formed versions, and optimized for flow rate.

T-Shaped Silicone Radiator Hoses
T-Shaped Silicone Radiator Hoses

No additional T-fittings are required, simplifying piping and optimizing space, and allowing for the connection of multiple radiators.

U-Shaped Silicone Radiator Hoses
U-Shaped Silicone Radiator Hoses

For wide-angle steering and compact layouts, working pressure:0.3-0.9 MPa, burst pressure 2MPa.

S-Shaped Silicone Radiator Hoses
S-Shaped Silicone Radiator Hoses

Use for continuous bidirectional bending, routing around brackets and wiring harnesses, and for lower radiator hoses equipped with a spring insert.

45 Degree Silicone Radiator Hoses
45 Degree Silicone Radiator Hoses

12 inches long, with 3-ply reinforcement, connected using aluminum barbed connectors.

45 Degree Silicone Turbo Hose
90 Degree Silicone Radiator Hoses

Using polyester, glass fiber, or aramid braid reinforcements, 4- 5 mm in thickness, in high vibration applications.

180 Degree Silicone Radiator Hoses
180 Degree Silicone Radiator Hose

With its high resilience, allows the coolant flow to be completely reversed, preventing leaks or pipe ruptures caused by various types of stress.

Silicone Radiator Hoses by Diameter

RONTEIX silicone radiator hoses fit securely onto the radiator and engine connections thanks to their various diameters, improving installation efficiency.

5/8 inch Silicone Radiator Hoses
5/8 Inch Silicone Radiator Hoses

5 mm thick, 15 mm in diameter, with 3-ply polydyrt braid reinforcement, burst pressure 22 bar.

1 inch Silicone Radiator Hoses
1 Inch Silicone Radiator Hose​

25 mm in diameter, 4 mm in wall thickness, with 3-ply reinforcements, burst pressure 250 pounds.

1 1/4 Inch Silicone Radiator Hose_
1 1/4 Inch Silicone Radiator Hose​

32 mm in OD diameter, 5.2 mm in wall thickness, 48″ L x 1.25″ W in dimensions, working pressure: 3-1.2 MPA. 

1-1/2 Inch Silicone Radiator Hose_
1 1/2 Silicone Radiator Hose

With 3-ply wrapped reinforcements, 3 ft in length, burst pressure 375 PSI, maximum pressure 125 PSI.

1-3/4 Inch Silicone Radiator Hose_
1 3/4 Silicone Radiator Hose

With 4-ply polyester reinforcements, working pressure 73 PSI, sold in 3 ft length, SAE-J20 compliant.

2 Inch 90 Degree Radiator Hoses
2 Inch 90 Degree Radiator Hose

4.5 mm in wall thickness, burst pressure 245 PSI, working pressure 0.4-0.9 MPa, with 3-ply reinforcements.

2-3/4 Inch Silicone Radiator Hose_
2 3/4 inch Silicone Radiator Hose​

With a 4-ply polyester-reinforced configuration, withstands a wide range of temperatures from -65 °F up to 350 °F.

2.5 Inch Silicone Radiator Hose_
2.5 Silicone Radiator Hose

2.5″ Diameter x 6″ Long in size, used for engine swaps or cooling system replacements, 1 pound in weight.

3 Inch Silicone Radiator Hose_
3 Inch Silicone Radiator Hose

With 3/4 ply polyester reinforcements, 3 ft in length, used to connect heavy-duty equipment in high-pressure environments.

Silicone Radiator Hoses by Color

RONTEIX colored silicone radiator hoses are primarily used to distinguish specific sections, particularly in the coolant delivery lines of automotive cooling systems. Our hoses can also be customized to meet the unique needs of car owners. Please send us your drawings and requirements.

Black Silicone Radiator Hoses
Black Silicone Radiator Hoses

Designed as an OEM-style replacement, keeps the engine compartment low-profile and clean, UV-resistant, and anti-aging.

Blue Silicone Radiator Hose
Blue Silicone Radiator Hoses

Used to carry coolant, to distinguish it from the red or yellow fuel lines.

Red Silicone Radiator Hose
Red Silicone Radiator Hoses

Used to indicate high temperatures, or to represent cold water pipes or specific high-pressure circuits on a racetrack.

Green Silicone Radiator Hose
Green Silicone Radiator Hoses

Used to distinguish between coolant and turbocharger intercooler lines.

Pink Silicone Radiator Hose_
Pink Silicone Radiator Hoses

Equipped with high-performance clamps and featuring a distinctive design.

Silicone Radiator Hoses

Feature box

RONTEIX silicone radiator hoses are designed to withstand high temperatures, resist aging, and prevent sticking, helping car owners improve the performance of their cooling systems. If you are interested in our hoses, please contact us immediately

High Temperature Resistance
High Temperature Resistance

Withstands extreme temperatures ranging from -60°C to 250°C, preventing the cooling system from failing.

Reinforced Construction
Reinforced Construction

Uses polyester, aramid, fiberglass, and stainless steel wire as reinforcement layers, adding 3–5 plies using a mesh weave or spiral winding method.

Excellent Flexibility
Excellent Flexibility

210–400% elongation at break, maintains consistent flexibility across a wide temperature range and absorbs vibrations.

Coolant & Aging Resistance
Coolant & Aging Resistance

Resists chemical corrosion, UV radiation, and ozone, while maintaining its physical properties and sealing performance.

High Pressure Resistance
High Pressure Resistance

With the addition of an internal reinforcement layer and a one-piece vulcanization process, with a burst pressure of 2.5–4 MPa.

Thermal Cycling Resistance
Thermal Cycling Resistance

The sealing contact pressure is maintained at 85% or more of the initial value, and the compression set is less than 15%.

OEM Performance Enhancements
OEM Customization

Supports OEM replacement and comparison-based selection, automotive modifications, engine swaps, and turbocharger upgrades.

Stunning Visuals
Stunning Visuals

The surface features a fine matte or semi-matte finish, with vibrant, long-lasting colors that enhance the cleanliness of the engine compartment.

Supply and Wholesale Silicone Radiator Hoses

RONTEIX offers silicone radiator covers that are exact replicas of the originals in terms of material, size, and functionality, as well as personalized customization services. Our hoses are designed for off-road vehicles, trucks, motorcycles, race cars, and other vehicles, and we offer a comprehensive selection of hose molds for you to choose from. Please contact us right away!

RONTEIX BMW Silicone Radiator Hose Kits

Silicone Radiator Hose Kits

RONTEIX offers silicone radiator pipes compatible with various models of Toyota, Ford, Chevy, GMC, Jeep, Subaru, BMW, and Nissan, including models from 1989 to 2023.

Vehicle-Specific Fit

Our silicone radiator kits typically include a complete set of hoses—including upper, lower, heater, bypass, and overflow hoses—as well as other fittings. We ensure that all hoses are consistent in style and that no small hoses are omitted.

vs Custom-Made Radiator Hoses

Our silicone radiator hoses are either 1:1 replicas or optimized versions tailored to specific vehicle models, offering OEM replacement, standardized upgrades, and general modifications. Our custom-made radiator hoses, on the other hand, are primarily inspired by specific requirements and designed from scratch based on drawings and samples.

Fast Turnaround Time

Since there is no need for additional sample verification, our warehouse maintains a large inventory for you to choose from.

Benefits of Silicone Radiator Hoses

Enhanced Durability and Lifespan

Silicone radiator tubes maintain their flexibility and strength even when exposed to prolonged heat and chemical corrosion, reducing the frequency of replacement.

Aesthetic Appeal

With a metallic sheen and available in a variety of colors, it enhances the visual appeal of the engine compartment.

Easy to remove and maintain

Our silicone radiator hoses typically do not stick to the radiator or the engine’s metal fittings, making them easier to remove and replace.

Benefits of Silicone Radiator Hoses
Turbo Hose Clamps

Silicone Radiator Hose Clamps

Liner Worm-Drive Clamps

Our clamps are made of stainless steel and feature a helical gear clamp design. They are lined with a flexible material that protects the surface of silicone radiator hoses and prevents indentations.

T-Bolt Clamps

Our T-bolt clamps ensure even pressure distribution with no dead spots thanks to their wide steel bands and T-bolt design, and they do not damage silicone radiator hoses.

Spring Clamps

Our spring clamps rely on spring elasticity and pressure to adjust, as the hose expands and contracts due to temperature changes. Once installed, they lock into place and cannot be resized.

Ford 2011-2014 Mustang GT 5.0L V8 Silicone Radiator Hoses

RONTEIX offers high-temperature silicone radiator hoses for the 2011–2014 Ford Mustang GT 5.0L V8, including red, blue, and black kits.

These 3-ply reinforced silicone radiator hoses primarily consist of upper radiator hoses, lower radiator hoses, heater hoses, and clamps.

  • Weight: 4 lbs
  • Maximum temperature rating: 350F
  • Our hoses are compatible with models equipped with an oil cooler; otherwise, the lower radiator hoses cannot be installed. After replacing the hoses, be sure to thoroughly bleed the system to prevent localized overheating.

If you are interested in our silicone radiator hoses, please send us an email.

Ford 2011-2014 Mustang GT 5.0L V8 Silicone Radiator Hoses
How to Install Silicone Radiator Hose

How to Install Silicone Radiator Hose?

Step 1: Use a scraper or wire brush to remove all old rubber residue, scale, and debris. Thoroughly clean the metal surface to remove any tiny particles that could create pathways for slow leaks.

Step 2: Apply soapy water or a specialized hose lubricant to the back of the radiator hoses to prevent dry friction.

Step 3: Slide the hose into the fitting until it is fully seated, then slide the clamp to the end of the radiator hose and tighten it evenly.

Step 4: After installation is complete, fill the system with coolant and bleed out all trapped air. Check all connections for leaks or bulges.

Resource

Catalog Download

For more products and to learn about RONTEIX, please click to download our catalogue as follows:

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Video

Know more about product knowledge and manufacturing process? Just click the video link.

Advantage

Aluminum Radiator Hoses vs Silicone Radiator Hoses

Aluminum Radiator Hoses
Radiator Hoses vs Exhaust Hose

RONTEIX aluminum radiator hoses are used to connect stationary piping systems to maintain their shape, reduce flow resistance, and enhance both aesthetics and structural strength.

RONTEIX silicone radiator hoses are used to connect all static connection points to absorb vibrations and movement.

  • In terms of physical properties, aluminum radiator hoses are rigid and cannot flex, whereas silicone radiator hoses can be bent and absorb vibrations and movement.
  • In terms of core functions, aluminum radiator hoses channel fluid and provide structural support, while silicone radiator hoses are used for connections and shock absorption.
  • In terms of vibration damping, silicone radiator hoses offer better shock absorption than aluminum hoses, helping protect the radiator and engine connections.
  • Silicone radiator hoses are better able to handle thermal expansion than aluminum radiator hoses, absorbing it through their flexibility.

If you’d like to learn more about the detailed specifications, please feel free to email us.

Silicone Radiator Hoses

Manufacturing Process

The RONTEIX factory covers an area of 4,000 square meters and features a complete production line for silicone radiator hoses. Depending on specific requirements, we utilize three main manufacturing processes: hand-wrapped, extrusion, and injection molding. Below is a detailed description of these processes, along with our subsequent quality control procedures.

Hand-Wrapped Process of Silicone Radiator Hoses

These are the key processes we use to manufacture our custom T-shaped, S-shaped, and U-shaped silicone radiator hoses. Through mandrel preparation, inner layer coating, reinforcement wrapping, outer layer coating, curing, and demolding, we produce high-performance hoses with complex shapes.

Silicone Radiator Hose Extrusion Process

This process is primarily used to produce straight tubes or simple bent tubes. Through mixing, extrusion, continuous vulcanization, reinforcement, cooling, and winding, we produce hoses with consistent length and dimensional uniformity.

Wholesale and Delivery Silicone Coolant Hose

One-Stop Coolant Transport Hose Solutions

RONTEIX provides end-to-end services, including material selection, mold making, manufacturing, assembly, and packaging. We guarantee that our hoses have an anti-aging lifespan of over 10 years and can withstand high burst pressure. Send us a drawing or sample right away for a quote!

ABOUT

More About Silicone Radiator Hose

RONTEIX silicone radiator 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.

Silicone Coolant Hose
ItemSpecification
Fabric ReinforcedPolyester, Aramid or Fiberglass
4mm wall (3ply)
5mm wall (4ply)
OEM
Cold / Heat Resistance Range-60℃ ~ 260℃
Working Pressure0.3 MPa ~ 1.2 MPa
ColorsBlue / Red / Black / Green / Orange / Yellow / Purple / White
(or according to customers’ requests)
Shape / Size45° / 90° / 135° / 180° Elbow hose
Straight hose
Reducer hose
Hose shape and size: Any customized shape
FeatureHigh temperature and High Pressure
PackageCarton or according to customers’ requirements
Delivery Time7-30 Working days
LogoCan be customized

Testimonials

  • It is flexible and looks good. Let’s see how long it will last.
    Adrian
    Purchasing 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

    Selina
    Department Manager
  • We 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.

    Ava
    Purchaser
Are silicone radiator hoses worth it?

RONTEIX silicone radiator hoses can be manufactured using methods such as machine extrusion, molding, and hand-winding to meet both high-volume production and custom orders.

How to bend silicone radiator hose?

We do not recommend bending silicone radiator hoses after heating them, as this can cause the hose to kink, the internal structure to rupture, or the hose wall to collapse.

If you want to use curved silicone radiator hoses to fit your vehicle’s tubing layout, it’s best to use elbow silicone radiator hoses.

Do silicone radiator hoses expand​?

RONTEIX silicone radiator hoses undergo volume changes due to three factors: thermal expansion, curing shrinkage, and hygroscopic swelling.

Thermal Expansion

Silicone expands and contracts 10 to 20 times more than metal; it expands when heated and contracts when cooled. To restrict the radial expansion of the silicone and prevent the radiator hoses from bulging under system pressure, we embed 3 to 5 layers of reinforcement inside them.

Curing Shrinkage

To address the permanent volume shrinkage that occurs during the manufacturing and initial vulcanization stages of silicone radiator hoses, we increase the mold size to compensate for the shrinkage.

Hygroscopic Swelling

This is a slight, reversible expansion caused by prolonged exposure to high temperatures and high humidity, and it does not affect the performance of silicone radiator hoses.

Do silicone radiator hoses last longer​?

RONTEIX silicone radiator hoses are resistant to thermal cycling fatigue, corrosion, and electrochemical degradation. They can be used for more than 10 years, and their performance will not deteriorate as long as they remain physically intact.

Do silicone radiator hoses leak​?

RONTEIX silicone radiator hoses do not harden, crack, or develop peeling on the inner walls due to material aging. Generally, the main causes of leaks are improper installation, faulty fittings, or external physical damage.

Leaks at Joints

If clamps are not properly secured: The smooth surface of silicone and its low coefficient of friction can cause the clamps to loosen, leading to seal failure. If the radiator hoses are the wrong size, the clamps cannot compensate for the stress, and water will leak from the joints. If there are scratches, rust pits, or old adhesive residue at the joints, coolant will seep out through the gaps.

Leaks in the Pipes

If leaks occur due to aging, external wear, or electrochemical degradation of the silicone radiator pipes, inspect the wiring throughout the vehicle and repair any issues promptly to ensure proper electrical potential.

False Leak

In humid environments, water droplets may form on the outer surface of our silicone radiator hoses when the engine is cold; this does not affect performance.

Do silicone radiator hoses run cooler than conventional radiator hoses?

Compared to traditional rubber radiator hoses, RONTEIX silicone radiator hoses have a lower surface temperature and keep the engine running cooler. As a result, our hoses can lower the temperature in the engine compartment, reduce the risk of burns, and prevent heat soak.

Do silicone radiator hoses evaporate?

RONTEIX silicone radiator hoses will not evaporate, melt, or degrade throughout their service life. The coolant inside may experience slight leakage and evaporation; therefore, it is important to monitor the coolant level during routine maintenance and top it off as needed.

How long do silicone coolant hoses last?

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.

How to clean silicone radiator hoses​?

RONTEIX silicone radiator hoses can be cleaned with high-pressure water and a mild descaling solution to remove old coolant, rust, or debris from the inside.

How to remove upper radiator hose?

Step 1: Wait for the engine to cool completely, and disconnect the battery.

Step 2: Drain the coolant.

Step 3: Locate the upper silicone radiator hoses and the clamps securing both ends, then use the appropriate tool to loosen them.

Step 4: Once the clamps are loosened and pulled back, gently twist the silicone radiator hoses back and forth to break the seal, then pull them off the radiator and engine block.

Step 5: Use a towel to remove all rubber residue, mineral deposits, and debris, and check the metal fittings for cracks, corrosion, or sharp edges that could scratch the new silicone radiator hoses.

What does the radiator hose connect to​?

Lower Silicone Radiator Hoses: Our silicone radiator hoses primarily connect the inlet chamber at the top of the radiator to the engine’s cylinder head.

Upper Silicone Radiator Hoses: Our silicone radiator hoses are primarily used to connect the outlet chamber at the bottom of the radiator to the water pump’s inlet.

How much do silicone radiator hoses cost​?

The price of RONTEIX silicone radiator hoses primarily depends on factors such as the silicone material and the vulcanization and manufacturing processes. If you need vehicle-specific parts, they are typically more expensive than universal hoses that do not require tooling. For radiator hoses that require sample or drawing submissions, please email us for a quote.

Request an Official Quote

If you want to get an official quote, please fill in the following form with your detailed requirements, and we will get back to you within 24 hours.

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