Description
The Radium Engineering Fuel Rail for Mazda MZR/Ford Duratec is intended for performance builds that demand a more deliberate approach than simply adapting the factory hardware. It gives the installer a Radium-specific foundation for the listed application.
Why This Upgrade Matters
Fuel rails become a packaging and flow foundation once an engine moves beyond the limitations of the original fuel system. The goal is not simply a larger rail: the rail must provide the injector interface, port layout and plumbing flexibility needed to build a serviceable, stable fuel system around the engine.
Product-Specific Details
CNC machined fuel rail for the 4-cylinder Mazda MZR engine. This fuel rail is equipped with four 8AN ORB ports, which can be used for plumbing and fuel accessories. Bolts directly to engine without any permanent modifications. Compatible with stock injectors or any aftermarket injectors with the same fitment.
Fitment & Application
Application: Mazda MZR/Ford Duratec
Fitment style: Application-Specific
Technical Notes
Radium performance rails commonly use anodized aluminum construction and ORB-style end ports to support configurable AN plumbing. Injector dimensions and sealing style remain application-dependent, so injector selection should be confirmed with the injector manufacturer or tuner.
Radium Part Number
RAD20-0503-02
Enthusiast Notes
For higher-power or track-focused builds, the real advantage is the freedom to design the rail, regulator, sensor and plumbing layout around the engine instead of being locked into the factory fuel hardware.
Before Ordering
Confirm engine/application, injector dimensions, required adapters, regulator strategy and whether a separate plumbing kit is needed. Fuel injectors and AN adapter fittings are not assumed to be included unless specifically listed for the selected SKU.