Radium Engineering 8AN ORB to 6AN ORB Swivel Union Fitting
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Radium 8AN ORB To 6AN ORB Swivel Union Fitting
Radium Engineering builds this 8AN ORB to 6AN ORB swivel union fitting for builders who need a clean, leak-free port size conversion without fighting their hose routing. CNC-machined from billet aluminium with an anodised finish, it's a proper motorsport-grade component that won't let you down under pressure.
This listing covers the Radium Engineering 20-0686 swivel union fitting. Universal application — suits any build running 8AN and 6AN ORB ports in fuel, oil, or coolant systems.
Specifications
- Inlet: 8AN ORB (9/16"-18 O-Ring Boss)
- Outlet: 6AN ORB (9/16"-18 O-Ring Boss)
- Construction: CNC-machined billet aluminium
- O-rings: FKM (Viton) — compatible with petrol, E85, and alternative fuels
- Finish: Hard anodised for corrosion resistance
- Swivel design for simplified routing and installation
- Part Number: 20-0686
Compatibility details and fitment notes are provided in the tabs above. Confirm your port sizes and thread pitch before ordering.
Not sure if this fitting suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
Universal fitment — verify dimensions before ordering.
No instructions available for this product.

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