Custom Silicone Hose Solutions for Heavy-Duty Engines

Modern heavy-duty diesel engines rely on efficient cooling systems to meet strict emission standards. One key component is the EGR (Exhaust Gas Recirculation) Cooler, which reduces exhaust gas temperature before it is recirculated into the engine, helping lower NOx emissions while maintaining engine performance.

The Volvo D11 and D13 EGR Cooler features four functional ports, each connected to a dedicated pipeline within the engine system:

·Exhaust Gas Inlet (Large Flange – Left Side) 

·Connected to the engine exhaust manifold via a metal exhaust pipe.

·Carries high-temperature exhaust gases into the EGR cooler core.

·Coolant Inlet (Upper Left Curved Port) 

·Connected to a molded silicone coolant hose.

·Delivers engine coolant into the cooler jacket to absorb heat from the exhaust gases.

·Exhaust Gas Outlet (Large Flange – Right Side) 

·Connected to the EGR transfer pipe and flexible connector.

·Transfers cooled exhaust gases back to the intake system for secondary combustion.

·Coolant Outlet (Upper Right Curved Port) 

·Connected to the return silicone coolant hose.

·Returns heated coolant to the engine's main cooling circuit.

Our Expertise: Custom Silicone Hose Manufacturing

At OEM Silicone Hose, we specialize in manufacturing high-performance molded silicone hoses for heavy-duty truck engines and cooling systems.

Whether for Volvo D11/D13 EGR Coolers or other commercial vehicle applications, we can produce hoses that meet your exact requirements.

We Offer:

·OEM & ODM silicone hose development

·Custom molded coolant hoses

·Multi-angle and complex 3D hose designs

·Reinforced silicone hoses for high-temperature applications

·Multiple material grades for different working environments

·Custom colors, logos, and packaging

·Small-batch prototyping and mass production

Typical Applications

Our silicone hose solutions are widely used in:

·Engine cooling systems

·EGR cooling circuits

·Charge Air Cooler (CAC) systems

·Turbocharger coolant lines

·Radiator and heater circuits

·Heavy-duty trucks and buses

·Construction and mining equipment

·Agricultural machinery

Why Choose Silicone?

Compared with conventional rubber hoses, silicone hoses provide:

·Excellent heat resistance

·Superior aging and ozone resistance

·Long service life

·High pressure capability

·Outstanding flexibility

·Stable performance in harsh operating environments

Partner with Us

If you're developing replacement parts or OEM cooling systems for Volvo, Scania, MAN, Mercedes-Benz, DAF, Renault, Iveco, Cummins, Caterpillar, or other heavy-duty engines, we're ready to help.

From reverse engineering an existing hose to developing a completely new molded silicone solution, our engineering team can support your project from concept to production.

Custom Silicone Hoses for Heavy-Duty Engines — Designed for Performance, Manufactured for Reliability.