Adapter Fittings

Adapter fittings join two different connection types so OEM and aftermarket fuel system parts can work together. This range covers AN to metric, AN to NPT, ORB, vacuum port and fuel rail adapters, including universal fittings and vehicle-specific adapters for factory fuel rails. It sits within our Fittings and Hose category and features adapters from Radium Engineering.

Shop by Product Type

Adapter fittings are often used alongside other fittings and hose parts. Browse related categories:

Choosing the Right Part

Match the adapter to both connections it has to join. Check the thread type and size on each side.

  • Thread and port types: AN, ORB (O-ring boss), NPT, metric (for example M10x1mm and M14x1.5 inverted flare) and 5-bolt SAE are all represented in this range.
  • AN size: listings specify the dash size, such as 6AN, 8AN or 12AN.
  • Fuel pressure damper (FPD) adapters: these are listed by port, bore and bolt spacing, such as 8AN ORB with an 11mm bore, 42mm spacing and M6 bolts for the Nissan VQ35DE, or an 8AN ORB with a 27mm bore.
  • Vehicle-specific adapters: these name the model and chassis code. Examples include the Toyota GR Yaris (XPA16R) and GR Corolla (GZEA14R), Nissan 350Z (Z33), 370Z (Z34) and Skyline (V35/V36), Toyota Supra (JZA80) and IS300 (SXE10), Mitsubishi Lancer Evolution (4G), Honda S2000 (AP1/AP2) and Ford Mustang GT (FN/S550).
  • Short or long: some adapters come in short and long versions, so check the clearance around the port.
  • Other adapters: the range also includes vacuum port adaptors, an 8AN ORB to Schrader valve adapter, and a radiator hose barbed adaptor with a 1/4" NPT port in 32mm or 44mm ID.
Installation & What You'll Need

Most adapters connect to hose ends or AN fittings, which are sold separately. Confirm the thread type and size of every connection before ordering. You can find matching parts in Hose Ends and AN Fittings.

Fuel system work needs care, so installation by a professional is recommended.

FAQ

What does an adapter fitting do?
An adapter fitting joins two different connection types, such as an OEM metric port and an AN hose end, so OEM and aftermarket fuel system parts can be connected.

Which adapter suits my car?
Vehicle-specific adapters list the model and chassis code in the title, such as Toyota GR Yaris (XPA16R) or Nissan 350Z (Z33). Universal adapters are chosen by thread type and size.

What is an FPD adapter?
An FPD adapter mounts at the fuel pressure damper location on the fuel rail and provides an 8AN ORB port. Listings specify bore and bolt spacing to help confirm fitment.

Do I need anything else to install an adapter?
Most adapters connect to hose ends or AN fittings sold separately. Installation by a professional is recommended.

Need help choosing? Contact our team at sales@chicaneaustralia.com.au.

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Radium Engineering AN to metric adapter fitting – 6AN ORB / M12x1.0 Male option Radium Engineering AN to metric adapter fitting – 6AN Male Flare / M12x1.25 Male option
Radium Engineering vacuum port adaptor – 10-32 to 3AN Female Flare option Radium Engineering vacuum port adaptor – 10-32 to 5mm (3/16") Barb option
Radium Engineering AN to NPT adapter fitting – 6AN ORB to 1/8" NPT Female option Radium Engineering AN to NPT adapter fitting – 6AN Male to 6AN Female Inline with 1/8" NPT Port option
Radium Engineering fuel rail adapter for OEM components – FPR Adapter, 7mm Bore, 39mm Spacing, M6 option Radium Engineering fuel rail adapter for OEM components – FPR Adapter, 7mm Bore, 39mm Offset Spacing, M6 option
Radium Engineering fuel adapter fitting – Ford Mustang GT (S550) – 3/8in SAE to 1/8in NPT Radium Engineering fuel adapter fitting installed on a fuel rail – Ford Mustang GT (S550)
Radium Engineering M14 x 1.5 inverted flare to 6AN male adapter (long) – Honda S2000 (AP1/AP2) – angled view Radium Engineering M14 x 1.5 inverted flare to 6AN male adapter (long) – Honda S2000 (AP1/AP2) – close-up
Radium Engineering M10x1mm female to 1/8 NPT male fitting – Ford Mustang GT – front view Radium Engineering M10x1mm female to 1/8 NPT male fitting – Ford Mustang GT – angled view
Radium Engineering 8AN ORB Pressure Sensor Adaptor - Toyota GR Yaris (XPA16R) / GR Corolla (GZEA14R) - 8AN Fuel Rail
Radium Engineering M14x1.5 inverted flare to 6AN adapter (short) – Supra (JZA80) / IS300 (SXE10) / Evo – green fitting Radium Engineering M14x1.5 inverted flare to 6AN adapter (short) – Supra (JZA80) / IS300 (SXE10) / Evo – fitted with AN hose
Radium 14-0058 and 14-0062 radiator hose barbed adaptors with 1/4in NPT port, green anodised Radium 14-0058 hose barbed adaptor for 1-1/4in (32mm) hose, green anodised
Radium Engineering 8AN ORB to Schrader valve adapter with valve Radium Engineering 8AN ORB Schrader valve adapter fitted to a fuel rail end, close-up
Radium Engineering 12AN ORB to 5-bolt SAE adapter – installed in the FCST 5-bolt sender port Radium Engineering 12AN ORB to 5-bolt SAE adapter – adapter, gasket, washers and screws
Radium Engineering FPD adapter – Nissan 350Z (Z33) / Skyline (V35) – 8AN ORB 11mm bore flange Radium Engineering FPD adapter fitted to a VQ35DE fuel rail and intake – Nissan 350Z (Z33) / Skyline (V35)
Radium Engineering FPD adapter – Nissan 350Z/370Z (Z33/Z34) / Skyline (V36) – 8AN ORB adapter and circlip Radium Engineering FPD adapter fitted to a fuel rail – Nissan 350Z/370Z (Z33/Z34) / Skyline (V36)