Radium Dry Break Filler Replacement Dust Cap

The Radium Engineering Dry Break Filler Replacement Dust Cap is designed to install directly into a Radium Engineering female dry break filler, protecting the fuel tank from dirt and debris during refuelling. The cap is vented to balance internal fuel tank pressure changes, ensuring safe and reliable operation across all fuel types and conditions.

Constructed from anodised aluminium with stainless steel hardware and a tether assembly to prevent loss during refuelling.

Note: Dry Break Filler not included.

Features

• Designed specifically for Radium Engineering female dry break fillers
• Vented design — balances internal fuel tank pressure changes
• Anodised aluminium construction with stainless steel hardware
• Tether assembly included to prevent cap loss during refuelling
• Compatible with all fuel types: unleaded, leaded, diesel, AV gas, methanol, ethanol, E15, E85, and more

Compatible Mating Parts

• 20-0495-V — Dry Break, 1.5in, Female, Direct Mount, Vented
• 20-0504-V — Dry Break, 1.5in, Female, Remote Mount, Vented
• 20-0549-V — Dry Break, 1.5in, Female, Vented

Part Number:

• 20-0604 — Radium Dry Break Filler Replacement Dust Cap

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