






Radium Engineering Fuel Hanger Plumbing Kit with Microglass Filter for Ford Mustang 2018+
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Description
Radium Fuel Hanger Plumbing Kit with Microglass Filter, Ford Mustang (2018+)
Application: Ford Mustang S550 (2018-2023) and S650 (2024+) – with Radium 20-180X hanger
Part Type: Fuel hanger plumbing kit (6 micron microglass filter)
Part Number: 20-1817-05
The Radium 20-1817-05 Fuel Hanger Plumbing Kit includes everything required to install a return fuel system from the Radium 20-180X fuel pump hanger all the way to the engine bay of the 2018+ Mustang. A new high-flow check valve fuel filter (finer 6 micron microglass element), fuel lines, AN fittings and undercarriage fuel line retainers replace the OEM components, and the OEM feed hard line is repurposed as the return line.
Because 2018+ models use both port and direct injection, this kit uses Radium's dual fuel pressure regulator (DFPR), which can regulate pressure with boost at a 1:1 ratio if required, along with adapters for the direct injection high pressure fuel pump and port injection rail. Because the Radium hanger removes the in-tank low-micron filter, the external filter in this kit is required.
Key Features
- Complete Return System: Plumbs from the fuel hanger to the engine bay
- PTFE Lines: 6AN and 8AN PTFE fuel lines, long 8AN feed line under the car
- Check Valve Filter: Radium check valve fuel filter in a heat shield bracket
- Filter Element: finer 6 micron microglass element
- Regulator: Radium dual fuel pressure regulator (DFPR)
- Billet Line Retainers: 2 billet fuel/brake line retainers secure the 8AN feed line
- Hanger FPR Block-Off: Block-off kit for the hanger's integrated FPR included
What's Included
- Fuel hanger FPR block-off kit (20-0806)
- New feed and return fittings
- 6AN PTFE fuel lines
- 8AN PTFE fuel lines (x3), including the long underbody feed line
- Billet fuel/brake line retainers (x2)
- Radium check valve fuel filter (finer 6 micron microglass element) with heat shield bracket
- Radium dual fuel pressure regulator (DFPR)
- Adapters and fittings for the direct injection HPFP and port injection fuel rail
Optional Parts
- Radium Fuel Pump Hanger, 2011+ Ford Mustang/Shelby (20-1800 / 20-1801 / 20-1802) – Radium 20-180X dual pump hanger the kit plumbs from – select the version to suit your pumps
- Radium Fuel Rails, Ford Coyote / Voodoo (20-1433) – Radium Coyote port injection fuel rails used in Radium's complete fuel delivery system
- Radium Fuel Pressure Gauge 0-100psi (20-0029) – 0-100psi gauge Radium uses to monitor and adjust fuel pressure
- Radium DIY Fuel Pump Hard Wiring Kit (17-0031) – one per aftermarket pump (qty 1, 2 or 3) to supply full pump current
- Radium Fuel Hanger Plumbing Kit with Stainless Filter, Ford Mustang (2018+) (20-1817-03) – same kit with the alternative filter element
Important Notes
- Requires a Radium 20-180X fuel pump hanger – fuel pumps, fuel rails and injectors are not included (OEM injectors can be reused)
- Manual transmission cars: the 2-bolt flange clutch line bracket must be moved slightly to clear the filter inlet fitting
- Fuel pressure gauges are not listed in Radium's kit contents
- Radium's listing does not specifically mention right-hand-drive (Australian-delivered) vehicles – confirm fitment with iilumolab before ordering
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Ford Mustang S550 (2018-2023) – all models
- Ford Mustang S650 (2024+) – all models
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.

