Radium Air Filter 0.75" ID
Radium Air Filter 0.75" ID
Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
Radium Air Filter — 0.75" ID
This is a genuine Radium Engineering air filter designed for use on catch can breather ports, AOS vents, and other crankcase ventilation outlets where filtered air ingestion or venting is required. The 0.75" ID barb connection suits standard Radium catch can and AOS vent port sizes, providing clean filtered airflow while preventing contaminants from entering or exiting the system.
An essential component for open-loop or vented crankcase ventilation setups on naturally aspirated applications, or as a breather filter on any port requiring filtered air.
Suits: Universal — any application requiring a 0.75" ID barb air filter connection, including Radium catch cans and AOS units
Specifications:
- Inner diameter (ID): 0.75"
- Application: Catch can breather, AOS vent, crankcase ventilation outlet
Available Part Numbers:
- 18-0042 — Air Filter, 0.75" ID
Why Radium Engineering?
- ✅ Manufactured in the USA to motorsport-grade tolerances
- ✅ Genuine Radium replacement air filter for catch can and AOS breather applications
- ✅ Trusted by tuners and race teams running high-power builds worldwide
- ✅ 0.75" ID barb connection — direct fitment to Radium catch can and AOS vent ports
- ✅ Prevents contaminant ingestion on open-loop crankcase ventilation systems
Specifications
- Part Number
- 18-0042
- Brand
- Radium Engineering
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.