Radium 12AN ORB 5-Bolt SAE Adapter

Radium 12AN ORB 5-Bolt SAE Adapter (20-0439)

The Radium Engineering 12AN ORB 5-Bolt SAE Adapter allows a Radium Engineering DSV (Dump can Shutoff Valve) to be used on older generation FCST (Fuel Cell Surge Tank) units that feature 8AN ORB vent threads (20-014X-XX series). This adapter bridges the thread size difference, enabling DSV compatibility on legacy tanks without replacing the entire unit.

Important Note: A fuel level sender cannot be used in conjunction with this adapter when installed.

Compatible Applications

• Radium FCST units with 8AN ORB vent threads — 20-014X-XX series
• Any Radium Engineering DSV requiring a 12AN ORB port

Part Number:

• 20-0439 — Radium 12AN ORB 5-Bolt SAE Adapter

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet aluminium components built for performance and longevity
• ✅ Trusted by high-power build tuners and race teams worldwide
• ✅ Bolt-on fitment — no cutting, drilling, or fabrication required
• ✅ Compatible with E85, pump petrol, methanol, and all exotic fuel types