Radium AN ORB Fuel Surge Tank Bulkhead Fittings

Bright-dip green anodised aluminium bulkhead fittings designed for use with Radium Engineering Fuel Surge Tanks (FST). Each fitting includes a preassembled Viton O-ring and requires a threaded hole with chamfer to be drilled into the mating part for sealing. Two sizes available to suit standard and high-volume FST configurations.

Variant & Part Number Guide

Features

• Bright-dip green anodised aluminium construction
• Preassembled Viton O-ring — compatible with all fuel types including E85 and methanol
• AN ORB (O-ring Boss) thread for a positive, leak-free seal
• Requires threaded hole with chamfer in mating part for installation

Part Numbers:

• 20-0170 — 6AN ORB Bulkhead Fitting, 8.5mm Barb (Radium FST, post-2014)
• 20-0196 — 10AN ORB Bulkhead Fitting, 5/8" Barb (Radium High Volume FST, post-2015)

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
• ✅ Viton O-ring sealed — compatible with E85, pump petrol, methanol, and all exotic fuel types
• ✅ Designed specifically for Radium Engineering Fuel Surge Tank systems