SKU: 20-1035
Radium Engineering DSV Valve Extension Adapter Systems
Maximize the efficiency and safety of your fuel cell setup with the Radium Engineering DSV Valve Extension Adapter (SKU: 20-1035), the ultimate solution for motorsport enthusiasts and professional racers. This precision-engineered adapter extends the dynamic safety valve (DSV) for Radium fuel cells, ensuring optimal performance, seamless integration, and unmatched reliability. Outperforming all competitors, this adapter is the definitive choice for enhancing fuel system functionality in high-performance vehicles.
Why Radium?
Performance:
Extends the DSV to optimize fuel fill shut-off and rollover protection, ensuring safe and efficient refueling for high-performance fuel cells, even in demanding motorsport conditions.
Precision Machining:
Crafted from billet 6061 aluminum, this adapter is CNC-machined for exact tolerances, providing a secure, leak-free connection that withstands extreme pressures and temperatures.
Anodized Durability:
Features a Type-II anodized finish for exceptional resistance to corrosion, heat, and wear, ensuring long-lasting performance in harsh environments.
Enhanced Flexibility:
The extension adapter allows for precise positioning of the DSV, accommodating complex fuel cell installations and ensuring compatibility with various fill neck configurations.
FIA/SFI Compliance Support:
Designed to work with Radium’s DSV-equipped fuel cells, maintaining compliance with motorsport safety standards for road racing, rally, and drifting.
Trusted by Professionals:
Radium Engineering’s commitment to quality makes this adapter a top choice for motorsport teams and performance enthusiasts worldwide.
Included:
- One (1) DSV Valve Extension Adapter: CNC-machined billet 6061 aluminum, Type-II anodized finish.
- Pre-Installed FKM Viton O-Ring: Ensures a secure, leak-free seal compatible with all fuel types, including methanol and E85.
- Installation Instructions: Access to Radium’s online resources for proper installation.
- Radium Engineering Packaging: Guarantees safe delivery and product authenticity.
Note: This is an adapter only and does not include the DSV valve or fuel cell. It is designed for use with Radium Engineering fuel cells equipped with 12AN ORB DSV ports, such as the Radium FCST series.
Fitment:
The Radium Engineering 20-1035 DSV Valve Extension Adapter is a universal component designed for vehicles using Radium fuel cells with 12AN ORB DSV ports (e.g., FCST/FCST-X series). Common applications include:
- Mitsubishi Lancer Evolution (EVO 8/9/10): 2003–2016 (custom fuel cell setups)
- Subaru WRX/STI: 2002–2021 (motorsport fuel system upgrades)
- Nissan 350Z/370Z: 2003–2020 (race fuel cell installations)
- BMW M3 (E36/E46/E9x/F80): 1992–2020 (track and race builds)
Universal Fitment: Compatible with any vehicle or custom race car using Radium fuel cells with 12AN ORB DSV ports, including applications in road racing, drifting, rally, time attack, and off-road racing.
Note: Verify fuel cell and DSV compatibility before purchase. Professional installation is recommended for optimal safety and performance. For older FCST units with 8AN ORB vent threads, additional adapters may be required.
Part Numbers & Specifications
- SKU: 20-1035
- UPC: Not publicly listed (contact Radium Engineering for UPC details)
- Material: Billet 6061 Aluminum
- Finish: Type-II Anodized
- Thread Compatibility: 12AN ORB (O-ring boss) female to 12AN ORB male
- O-Ring: FKM Viton, pre-installed, compatible with all fuel types
- Weight: Approximately 0.1 lbs (45 grams)
- Compatibility: Radium FCST/FCST-X fuel cells with 12AN ORB DSV ports (e.g., SKU: 20-049X-XX)





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