Radium Engineering Fuel Adapter Fitting
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Radium 3/8in SAE Male to 1/8in NPT Male Adapter - Ford Mustang GT (S550)
Radium Engineering builds precision fuel system hardware for the Ford Mustang GT (S550), CNC-machined to motorsport-grade tolerances for reliable OEM to aftermarket integration on the Coyote 5.0L V8.
This listing covers the Ford Mustang GT (S550) from 2018, converting the factory 3/8in SAE quick connect feed line to a 1/8in NPT male port for use with Radium 20-0433 fuel rails.
Note: Sold as a single fitting only. Product images may show the adapter fitted to a complete rail kit and OEM manifold for illustration - these components are not included.
Specifications
- Side 1: 3/8in SAE quick connect male
- Side 2: 1/8in NPT male
- Application: OEM direct injection pump feed hose adapter
- Compatible with pump petrol, E85, ethanol, methanol and flex fuel
- Direct fitment with Radium 20-0433 fuel rails - no cutting or fabrication required
Vehicle compatibility, OEM part numbers, and fitment notes are provided in the tabs above. Please confirm your Mustang's year and configuration before ordering.
Pairs Well With
- Radium Engineering Fuel Pressure Gauge - Universal - 0-100psi (0-6.9 BAR)
- Radium Engineering Fuel Pressure Test Kit - Universal 1/8" NPT - PTFE 3AN
- Radium Engineering Fuel Rail Plumbing Kit (Coyote V8) - Ford Mustang (S550)
Not sure if this fitting suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Ford | Mustang GT | S550 | Coyote |
Details
- Fitting Type
- SAE Quick Connect to NPT Adapter
- Port 1
- 3/8 in (9.5 mm) SAE Quick Connect Male
- Port 2
- 1/8 in (3.2 mm) NPT Male
- Application
- OEM direct injection pump feed hose adapter
- Quantity Included
- 1 fitting
No instructions available for this product.

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