Automotive SCR Urea Supply 

Overview

Automotive urea supply  is designed for efficient and reliable delivery of Diesel Exhaust Fluid (DEF / AdBlue® / AUS32) within Selective Catalytic Reduction (SCR) systems. They transport urea solution from the tank to the injector, supporting accurate dosing and effective NOx reduction.

Engineered with multi-layer PA construction and optional heating, these lines provide stable performance in low temperatures, high vibration environments, and demanding vehicle applications.

Key Benefits

Reliable DEF compatibility
Resists crystallization, hydrolysis, and chemical degradation.

Cold-weather performance
Optional heated design prevents freezing and supports cold-start SCR operation.

Low permeation & corrosion resistance
Multi-layer PA structure improves durability and emission system efficiency.

Flexible and lightweight
Optimized for compact routing around engine and chassis areas.

Leak-free connection
High-quality connectors ensure stable and precise DEF delivery.

Multiple configurations
Available in heated, insulated, and customized assembly options.

Specifications

Applications

SCR emission systems

• Urea supply lines

• Heated DEF delivery lines

• Injector connection hoses

• Pump module pipelines

• Vapor return lines

Commercial vehicles

• Heavy-duty trucks

• Construction equipment

• Agricultural machinery

Passenger vehicles

• Light-duty SCR systems

• Hybrid vehicle applications

Quality & Compliance

• Manufactured under IATF 16949 and ISO 9001

• Compliant with ISO 22241 for DEF handling

• Meets relevant SAE and OEM standards

• 100% leak-tested before delivery

Validation testing includes:

• Thermal cycling

• Freeze-thaw performance

• Chemical resistance

• Vibration and fatigue

• Permeation testing

Customization

• PA11 / PA12 multi-layer materials

• Heated or insulated assemblies

• Metal and PA hybrid structures

• Vehicle-specific routing

• Multiple connector options

• Protective sleeves and coverings

• Laser marking and color coding

Why Choose Us

We specialize in automotive fluid-handling systems with advanced PA extrusion, forming, heater integration, and automated leak testing. Our engineering team supports design review, validation, and mass production to ensure reliable SCR pipeline performance.

Call to Action

Looking for reliable SCR urea supply and dosing lines?
Contact us for samples, technical support, or custom development.
We provide durable, lightweight, and cost-effective solutions for global emission compliance.