

Radium Engineering FCST-X 3-Bolt Remote Mount Fill Neck - Straight with 1.5" Barb
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Description
Radium Engineering FCST-X 3-Bolt Remote Mount Fill Neck - Straight with 1.5" Barb
Application: Radium FCST-X fuel cell surge tanks (20-1990-XX, 20-1991-00, 20-1992-XX, 20-1993-00, 20-1995-00)
Part Type: FCST-X 3-bolt remote mount fill neck, straight 1.5in barb
Part Number: 20-1027
A remote fuel filler setup has three parts: the remote filler (housing and cap), the remote fill neck that connects to the FCST or fuel cell, and the filler hose that links them. The 20-1027 is the remote fill neck for the FCST-X – a simple straight 1.5in machined barb that bolts to the FCST-X 3-bolt filler flange.
It's typically used with a body-mounted remote filler such as the Radium 20-1005-V or 20-1004-V (not included). The fill neck is sealed with an FKM O-ring and secured with stainless hardware.
Key Features
- FCST-X Specific: Bolts to the FCST-X 3-bolt filler flange
- Straight Barb: Machined straight 1.5in barb for the filler hose
- Seal: FKM O-ring seal
- Hardware: Stainless steel hardware
What's Included
- Flanged fill neck for 1.5in ID hose
- FKM O-ring seal
- Stainless steel hardware
Optional Parts
- Radium Engineering Remote Mount Fuel Filler - 1.5" Vented (20-1005-V) – body-mounted 1.5in remote standard filler
- Radium Engineering Dry Break - 1.5" Female Remote Mount (Vented) (20-1004-V) – body-mounted 1.5in remote dry break
- Radium Fuel Fill Neck Hose Kit - 1.5" ID (20-0597) – 1.5in ID filler hose kit
- Radium Engineering FCST-X 3-Bolt Remote Mount Fill Neck - 24AN Elbow with 1.5" Barb (20-1047) – the same fill neck with a 24AN 75° elbow
Important Notes
- FCST-X only – not compatible with the original 6-bolt FCST (Radium 20-0527 suits those)
- Remote filler and filler hose are sold separately
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Radium FCST-X fuel cell surge tanks: 20-1990-XX, 20-1991-00, 20-1992-XX, 20-1993-00, 20-1995-00
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.

