Small Diameter Radiator Hose

HOTOP produce small diameter silicone radiator hoses for automotive, motorsport, industrial equipment, and custom cooling systems. Multiple sizes, reinforcement options, and custom configurations are available to meet OEM and aftermarket requirements.

Key Features & Benefits

»High Temperature Resistance
Engineered to withstand continuous operating temperatures from ‑50°C to +176°C, with excellent resistance to hot coolant and glycol mixtures.

»Superior Flexibility for Tight Spaces
Small diameter design allows easy installation in compact engine bays and restricted routing paths without kinking.

»Reinforced Multi‑Ply Construction
Available with 1 to 4 layers of polyester or aramid reinforcement, ensuring reliable pressure resistance and dimensional stability.

»Long Service Life
Silicone material resists aging, cracking, and hardening far better than traditional rubber hoses.

»Custom Manufacturing Available
Inner diameter, wall thickness, length, color, reinforcement layers, and branding can be customized according to your application.

small diamter silicone hose

small diamter radiator hose

Typical Applications

»Automotive radiator and coolant systems

»Turbocharger and auxiliary cooling lines

»Electric vehicle (EV) and hybrid cooling circuits

»Motorsport and performance vehicles

»Industrial machinery and compact heat exchange systems

small silicone hose

small silicone hose

Technical Specifications

Detailed specifications are available upon request.

Why Choose Our Small Diameter Radiator Hoses?

»Dedicated silicone hose manufacturer with OEM experience

»Strict quality control and traceable production process

»Consistent wall thickness and dimensional accuracy

»Reliable performance under heat, pressure, and vibration

»Global supply capability with stable lead times

We focus on functionality, reliability, and customization, helping customers solve real cooling system challenges in compact applications.

Custom Solutions & OEM Support

HOTOP support OEM and custom projects from prototype to mass production. Whether you need a straight hose, formed hose, or special routing solution, our engineering team can assist with material selection, reinforcement design, and tooling development.

Available customization options include:

»Non‑standard inner diameters

»Special wall thickness or pressure ratings

»Custom colors and surface finishes

»Logo printing and part number marking

Customers Success Case for Small Diameter Radiator

success case for small radiator hose

success case for small diameter hose

»Small diameter radiator hoses need small-diameter molds, which are made from solid stainless steel rods to ensure sufficient strength. During production, these small-diameter molds are prone to deformation, requiring skilled demolding techniques, but mold deformation cannot be completely avoided.

»Silicone hoses have good flexibility, which can partially compensate for some of the mold deformation. For strict shape requirements raduator hose,  design corresponding jigs to check and correct the molds.