Radium 20-0484-08 8AN Fuel Cell Vent Kit for Standard-Fill Racing Fuel Systems

Vehicle Fitment

• Universal - Compatible with any fuel cell equipped with an 8AN male vent fitting

Fitment Notes

• Designed for standard-fill fuel cell systems with direct fill or remote fill necks
• Not intended for quick-fill or dry-break dump-can systems (see Radium 20-0484-12 for high-flow 12AN version)
• Requires an 8AN male vent fitting on the fuel cell (not included)
• Compatible with the standard vent fitting included with the Radium FCST Fuel Cell Surge Tank

Features

• Allows air to escape during fuel cell filling, preventing overflow and pressure buildup
• Permits filtered air to re-enter the cell as fuel is consumed, maintaining proper tank breathing
• Prevents fuel cell pressurization during normal vehicle operation
• Includes a clamp-on air filter to keep contaminants out of the vent line
• Designed for use with direct-fill and remote-fill neck configurations
• Compatible with Radium FCST systems using the standard vent fitting
• Made in the USA by Radium Engineering to motorsport-grade standards

Specifications

• AN Size: -8 AN (8AN)
• Fitting Angle: Straight
• Fitting Attachment: Female AN
• Hose Inner Diameter: 1/2" (0.50")
• Hose Length Included: 6 ft (1.8 m)
• Minimum Vent Line Vertical Height: 12"
• Application Type: Universal - Standard-Fill Fuel Cell Systems

Included Components

• 1x Clamp-on air filter
• 1x 6 ft (1.8 m) length of 1/2" ID fuel vent hose
• 1x Set of adapter fittings

Product Description

The Radium Engineering 20-0484-08 is an 8AN Fuel Cell Vent Kit designed to ensure safe, controlled breathing for race and performance fuel cells using standard-fill configurations. As the cell is filled, this vent allows displaced air to escape; as fuel is consumed, it permits filtered air back in - keeping the cell at proper atmospheric pressure throughout operation. The included clamp-on air filter prevents debris from entering the vent line, maintaining fuel system integrity.

Installation requires routing the 6 ft vent hose upward from the cell first, then looping it to act as an expansion chamber before terminating outside the cabin, below and behind the fuel cell, and away from exhaust heat. A minimum vertical height of 12" is required for proper function. This kit pairs directly with the standard vent fitting on the Radium FCST and is ideal for any motorsport build using a fuel cell with an 8AN male vent port.