Radium 20-1127 FCST Adapter 6-Bolt to 3-Bolt Filler Universal

Vehicle Fitment

• Universal Fit - For Radium Engineering RA-Series Fuel Cell Surge Tanks (FCST) equipped with a 6-bolt filler opening.

Fitment Notes

• Converts a 6-bolt fuel cell filler opening to accept a standard 3-bolt filler neck.
• Designed specifically for Radium Engineering FCST and compatible RA-Series fuel cells.
• Not intended for direct vehicle-specific installation.
• Requires a compatible 3-bolt fuel filler assembly (sold separately).

Features

• Converts 6-bolt filler openings to a 3-bolt filler pattern.
• Precision CNC-machined billet aluminum construction.
• Black anodized finish for corrosion resistance.
• Direct bolt-on installation to compatible Radium FCST assemblies.
• Maintains a leak-resistant sealing surface.
• Ideal for custom fuel cell and motorsport fuel system applications.
• Lightweight, durable design for long service life.
• Engineered to Radium Engineering's motorsport standards.

Specifications

• Manufacturer: Radium Engineering
• Part Number: 20-1127
• Product Type: FCST Adapter
• Application: Universal
• Adapter Configuration: 6-Bolt to 3-Bolt Filler
• Material: CNC-machined billet aluminum
• Finish: Black anodized
• Compatibility: Radium Engineering RA-Series Fuel Cell Surge Tanks

Included Components

• 1x FCST 6-bolt to 3-bolt adapter
• 1x O-ring seal
• 1x Mounting hardware kit

Product Description

The Radium Engineering 20-1127 FCST Adapter converts a 6-bolt fuel cell filler opening to a standard 3-bolt mounting pattern for use with compatible filler neck assemblies. Designed specifically for Radium Engineering RA-Series Fuel Cell Surge Tanks, it provides a simple and secure solution for custom motorsport and performance fuel system configurations.

Manufactured from CNC-machined billet aluminum with a durable black anodized finish, the adapter offers excellent corrosion resistance and long-term durability. Its precision-machined sealing surface and supplied O-ring help ensure a reliable, leak-resistant installation, making it an ideal choice for race cars, off-road vehicles, and custom fuel cell applications.