Silicone Heater Hoses for Sale
RONTEIX offers silicone heater hoses in a variety of sizes, colors, shapes, and reinforcement options for private modifications, automotive repairs, and industrial applications. Our hoses feature reinforcement layers made of polyester, aramid, fiberglass, and steel wire, and we customize straight sections, elbows, and reducers to fit specific clearance requirements.
Our silicone heater hoses not only replicate original equipment heater hoses on a 1:1 basis for the provided engine models, vehicle models, and hose specifications, but we can also customize them according to your drawings or samples.
Please contact us immediately for a quote!
What are RONTEIX Silicone Heater Hoses?
RONTEIX silicone heater hoses are small-diameter tubes that carry high-temperature coolant back and forth between the engine and the heater core.
What are silicone heater hoses used for?
Fluid and Gas Conveyance: Our hoses can convey high-temperature coolant, hot water, steam, or hot air.
Fluid Direction Control and Space Adaptability: Our hoses can change the direction of fluid flow using molded elbows, allowing them to adapt to the complex environment of an engine compartment.
System Reducers: We can connect two components with different pipe diameters to ensure fluid does not become blocked.
Silicone Heater Hoses by Diameter
RONTEIX silicone heater hoses are available in the following inner diameters, depending on operating pressure, engine type, temperature, and flow rate.
14 mm ID, 22 mm OD, 75 max working pressure, with 2-1/2″ bend radius, 4 mm in wall thickness.
4 mm wall thickness, 22 mm ID, 30 mm OD, 4″ bend radius, with 60 PSI max working pressure.
3 mm wall thickness, 80 PSI max working pressure, with 1-1/2″ bend radius, ID 3/8″, OD 5/8″.
25 feet in length, 16 mm ID, 22 mm OD, 70 PSI max working pressure, with 3″ bend radius.
19 mm ID, 25 mm OD, with 70 PSI max working pressure, compatible with both water and antifreeze.
200 PSI max working pressure, 25 feet in length, with sight ply polyester braided reinforcements.
0.25 lbs in weight, 0.160″ wall thickness, 0.500″ ID, with 249 PSI working pressure.
35 PSI max working pressure, 5-1/2″ bend radius, 32 mm ID, 41 mm OD, 4.5 mm in wall thickness.
50 feet in length, 0.16 inch in wall thickness, 0.63 in OD, 0.31 in ID, with single-ply braided reinforcements.
20 mm ID, 37 mm OD, 4.5 mm in wall thickness, with 35 PSI max working pressure.
Silicone Heater Hoses by Color
RONTEIX offers a wide range of color customization options, including clear, red, yellow, orange, green, black, blue, and more. Please send us your request!
Used to monitor fluid conditions and troubleshoot problems, maintains stable performance even under extremely high temperatures.
High visibility, used to indicate high-temperature coolant circuits, for quick identification and maintenance.
Designed for the motorcycle and off-road vehicle sectors, suitable for complex environments containing electrical components.
Used in complex automotive, motorcycle, and go-kart engine compartments, as well as in industrial equipment, to alert operators to the routing of piping.
The most common and classic color, designed to complement the cooling system’s function, is suitable for high-temperature piping and industrial cooling circuits.
Reminds operators to be aware of high temperatures, high pressure, and hazardous media, not discolor at 350°F and is used in base-coat applications.
Prevents visual clutter, offers strong anti-aging performance, and preserves the original factory appearance.
Silicone Heater Hoses by Feature
RONTEIX silicone heater hoses are designed to prevent leaks and withstand high and low temperatures thanks to the properties of silicone and their 2-5-ply reinforcements. Our hoses are available in straight or bent configurations to fit the layout of your engine compartment. Please contact us immediately for a quote.
Used to change the direction of a fluid flow, bypass obstacles and supports, and establish connections in tight spaces.
Suitable for integrated connections, optimized fluid pathways, and one-piece molding, allowing for the addition of reinforcements or increased wall thickness in critical areas.
23 lbs./ft. in weight, with 175 PSI minimum burst pressure and 40 max operating pressure, 0.36-inch wall thickness.
Equipped with polyester/aramid reinforcements, made by weaving or twisting.
Thickness: 4–6 mm, suitable for high-boost, high-pressure systems requiring a larger bend radius.
With 4-ply polyester reinforcements, 25 mm ID, 35 mm OD, 5 mm wall thickness.
Feature box
RONTEIX silicone heater hoses strictly adhere to the specifications you provide and offer improved performance over the original hoses. Our goal is not merely to replace them, but to help you create a unique engine bay of your own.
Withstands temperatures ranging from -60°C to +260°C, with a maximum temperature limit of 310°C, without softening or melting.
Does not crack when repeatedly bent, absorbs vibrations, retains its elasticity under extreme temperatures, and is resistant to fatigue and kinking.
With a service life of over 10 years and an exceptionally high mileage of 500,000 miles, not harden or become brittle.
Offers customization options for brand, color, shape, diameter, length, and reinforcements, and can provide samples.
Resists UV radiation, has excellent water-repellent and water-absorbent properties, is resistant to steam and ozone, and maintains structural integrity.
Compatible with ethylene glycol, propylene glycol, additives, and water-based coolants, resistant to swelling and deformation.
High mileage, low long-term ownership costs, maintenance-free, and reduced downtime.
Prevents the engine block from overheating, ensures the proper functioning of the main cooling circuit, and provides a rapid thermal response,
Wholesale High Temperature Silicone Heater Hoses
RONTEIX supplies standard & custom silicone heater hoses at ex-factory prices. We can customize and develop a mold for our air intake silicone hose – even for single-unit orders – with shipping costs included.
Upgrade Your Engine with Silicone Heater Hoses
Lined Hose Clamps
Our lined hose clamps are primarily used to prevent hoses from being cut or crushed and to prevent hoses from being squeezed out. They feature an outer metal band and an inner protective lining that acts as a protective cushion.
T-Bolt Clamps
Our T-bolt clamps provide a uniform 360° seal and maximum clamping force. Their heavy-duty construction and extremely precise dimensions allow them to accommodate the thermal expansion and contraction of silicone tubing.
Constant-Tension Clamps
Our constant-tension clamps feature a self-adjusting spring mechanism and a maintenance-free design. They effectively compensate for the gaps caused by the repeated expansion and contraction of silicone tubing.
Our silicone hose clamps provide a precise, dynamic seal that absorbs both vibration and stress, protecting the silicone hose walls and preventing the hose from coming loose.
Upgrade Your Engine with Silicone Heater Hoses
RONTEIX offers silicone heater hoses with exceptional durability, resistance to aging, and heat resistance, helping engines deliver optimal performance consistently and reliably.
Improve Reliable Thermal Management Efficiency
Improve cooling system efficiency and ensure efficient coolant circulation.
Improving Air Intake Efficiency
Improves airflow and throttle response, increasing engine power output.
Improving Boost Stability
Maintain high pressure, do not lose power, and do not collapse under vacuum conditions.
Reducing Losses and Vibration
Absorb mechanical vibrations generated by the engine during operation and reduce noise from hose friction.
What Size Silicone Heater Hose Do You Need?
RONTEIX offers silicone heater hoses with inner diameters of 1/2, 5/8, 3/4, 7/8, 1, 1-1/4, and 1-1/2 inches. You should measure the outer diameters of the hoses and fittings precisely in advance using a vernier caliper to ensure that any deviation does not exceed 0.5 mm.
You can replicate the part directly using the OEM hose ID, hose OD, part number, vehicle model, engine model, and hose length.
The final size can also be determined based on the required coolant flow rate, equipment fitting size, operating pressure, temperature, minimum bend radius, and available installation space.
Please send your drawings or specifications to us.
Resource
For more products and to learn about RONTEIX, please click to download our catalogue as follows:
Know more about product knowledge and manufacturing process? Just click the video link.
Silicone Heater Hoses v.s. Rubber Heater Hoses
RONTEIX silicone heating hoses are designed to enhance vehicle performance, especially during long-distance drives or in extreme weather conditions.
RONTEIX rubber heater hoses are particularly suitable for passenger cars and standard temperature conditions. Our hoses offer high abrasion resistance, which can significantly reduce costs.
- Temperature Resistance: Silicone heater hoses can withstand temperatures up to 360°F and are suitable for high-temperature engine compartments. Rubber heater hoses, on the other hand, have a slightly lower temperature limit and are suitable for standard heating systems.
- Flexibility: As long as the minimum bend radius is observed, our silicone heater hoses can be routed to avoid engine components, the exhaust system, and electrical wiring.
- Abrasion resistance: EPDM offers better abrasion resistance than silicone, especially in high-friction environments.
If you would like more detailed information on the differences to help you purchase heater hoses, please send us your specific requirements.
Silicone Heater Hoses v.s. Silicone Radiator Hoses
RONTEIX silicone heater hoses, along with the engine and the heater core, make up a vehicle’s heating system.
The primary function of RONTEIX silicone radiator hoses is to transport coolant between the engine and the radiator to cool the engine.
Diameter: Our silicone radiator hoses are designed to carry more coolant, which requires a larger diameter and a more robust construction. In contrast, our silicone heater hoses have a lower coolant flow rate and require a smaller bend radius to increase flexibility and avoid interfering with engine components.
Pressure Resistance: Our silicone heater hoses have much lower pressure resistance requirements than radiator hoses and pose a lower risk of leakage.
For more information, please contact us.
Silicone Heater Hoses Application
RONTEIX silicone heater hoses are primarily used in cars, motorcycles, trucks, industrial engines, marine engines, construction equipment, and agricultural machinery. Our hoses are suitable for both personal modifications and factory equipment. Please contact us immediately for a quote.
RONTEIX silicone heater hoses are most commonly used in cars and motorcycles, particularly passenger cars, SUVs, vans, and modified vehicles. A well-designed cabin heating system provides passengers with a comfortable driving environment.
Our silicone heater hoses are designed for use in heavy-duty trucks, light-duty trucks, buses, and coaches. They can withstand extremely high mileage and can be customized as one-piece molded elbow hoses.
Our silicone heater hoses can be used as flexible heating lines in battery heating systems to provide uniform heating to the battery pack.
Our silicone heater hoses are used to transport high-temperature coolant in heat transfer systems, industrial insulation and trace heating, and compressed air systems.
Our silicone heater hoses can be used for engine preheating in the cabs of excavators, loaders, bulldozers, cranes, forklifts, and road rollers.
Our silicone heater hoses are designed for use in tractors, harvesters, sprayers, and agricultural loaders. We can help you operate in both summer and winter, as well as in dusty outdoor environments.
Our silicone heater hoses are designed for use in mining vehicles, loaders, drilling equipment, and other machinery. They can withstand high-frequency vibrations in harsh environments, thereby increasing machine uptime.
Our silicone heater hoses are used in 4×4 vehicles and off-road trucks, especially in custom piping systems. They are suitable for high-speed impact environments.
Our silicone heater hoses are designed for marine engines on fishing boats, workboats, and yachts. They are built to withstand the salt spray, high temperatures, and high-pressure environments of open waters.
More About Our Company
RONTEIX factory features a 4,000-square-meter production facility and a complete production line for silicone heater hoses, including extrusion, hand-winding, and compression molding processes. Our hoses undergo a series of processes—including raw material open milling, calendering, cutting, extrusion or winding, compression molding, vulcanization, and testing—to meet your custom requirements. Please contact us immediately to send your drawings or samples!
- Video
- Data Sheet
- Gallery
| Silicone Heater Hoses | ||||
| ID Size | I.D. (mm) | O.D. (mm) | Wall Thickness (mm) | Available Lengths |
| 1/4″ | 6.35 | 13.5 | 3.575 | 25 m / 50 m / 250 m |
| 3/8″ | 10 | 18 | 4 | 25 m / 50 m / 250 m |
| 1/2″ | 12.7 | 20.7 | 4 | 25 m / 50 m / 250 m |
| 5/8″ | 16 | 24 | 4 | 25 m / 50 m / 250 m |
| 3/4″ | 19 | 27 | 4 | 25 m / 50 m / 250 m |
| 1″ | 25 | 34 | 4.5 | 25 m / 50 m / 100 m |
Testimonials
Product quality and material looks great. Definitely worth the price. Product was delivered just in 11 days and I was amazed. The package was nicely done and compact. This is the same product you can get from some of the known brands out there. so be smart and trust RONTEIX.
David MillerProcurement ManagerYES THESE DO FIT A THE VQ35HR MOTORS AS WELL. I just installed these on my Nissan 350z. Fantastic customer service shipping was on time and product quality is top notch. I would purchase from RONTEIX again. when first installed it can be raspy but give it a few exhaust heat cycles over about 500 miles and the tone smooths out.
Thomas BrownTechnical DirectorThe product is excellent! with unbeatable quality and price. The waiting time was long, but it’s worth it. The delay is not the fault of the seller, but of customs and transportation systems. Thanks for the heater pipe!
William HarrisTechnical DirectorCustomer service was the best i have experienced in years. The hose is high quality and is exactly as described. They even sent a little extra. Very happy and would order from them again without hesitation.
Richard LewisMaintenance ManagerHigh-quality elbow silicone hose. I custom made one for my snowmobile, very nice!
James CarterIndividual Buyer
RONTEIX silicone heater hoses are not resistant to petroleum, fuel, or strong solvents. Prolonged exposure to petroleum can cause the hoses to swell, soften, and fail.
5/8 inch (15.9 mm): Primarily used in compact and full-size sedans, as well as small SUVs.
3/4 inch (19.1 mm): Primarily used in full-size pickup trucks, large SUVs, and some high-performance vehicles.
1/2 inch (12.7 mm): Primarily used in small engines, motorcycles, or specific auxiliary heater circuits.
Inappropriate Clamps
Our silicone heater hoses are not easily compressed or deformed, so the clamping force of the clamps cannot be converted into a reduction in material thickness that would cut through the silicone hose.
Improper Sizing
If the inner diameter of the silicone heater hoses exceeds the outer diameter of the fitting, leaks are likely. If it is smaller than the outer diameter, the hoses may tear.
Chemical Incompatibility
Our silicone heater hoses will swell, soften, and crack when they come into contact with engine oil or fuel.
Flow Restrictions
If the bending radius is too tight, our silicone heater hoses may kink or collapse. This leads to localized pressure buildup, causing leaks at the weakest points.
Damaged Fittings
If a fitting is damaged, rusted, has sharp edges, burrs, or is corroded, a leak may occur.
Hose Collapse
At the pump’s inlet, low vacuum can cause silicone heater hoses to collapse inward, obstructing coolant flow. As a result, the engine will overheat rapidly.
Internal Swelling
If engine or transmission fluid leaks onto the silicone heater hoses, the silicone material will absorb the fluid and expand internally.
Kinking or Sharp Bends
If the bending radius is too small, silicone heater pipes may kink or fold, causing damage to the flow path.
Blowout or Bursting
A sudden burst or rupture in a hose can cause a rapid loss of coolant, leading to engine overheating.
Visible Physical Damage
If the surface of silicone heater hoses shows cracks, bulges, kinks, or severe creases that affect the internal flow channels, they must be replaced.
Chemical Contamination
If silicone heater hoses feel soft or spongy to the touch, or if they swell when exposed to oil, they must be replaced.
Age and Degradation
If silicone heater hoses become extremely hard or soft, show severe discoloration, or lose structural integrity, they must be replaced immediately.
Persistent Leaks
If the leak cannot be repaired, the silicone heater hoses must be replaced promptly.
The pressure-bearing capacity of RONTEIX silicone heater hoses generally depends on their internal reinforcement structure. We guarantee that our burst pressure is at least four times the maximum system pressure.
RONTEIX silicone heater hoses are flexible enough to absorb high-frequency engine vibrations; they are resistant to kinking and do not require excessive force during installation. Their smooth inner walls reduce fluid turbulence and flow resistance, improving heat transfer efficiency; They offer excellent aesthetic appeal and resist fading even with long-term use, enhancing the overall visual appearance.
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.
