Radium Air Oil Separator - Universal Kit

The Radium Engineering Universal Air Oil Separator (AOS) Kit is a complete solution for custom crankcase ventilation builds where a vehicle-specific kit is not available. CNC-machined from billet aluminium and anodised for corrosion resistance, the AOS captures oil mist and vapour from crankcase gases before they re-enter the intake system — protecting intake valves, intercoolers, throttle bodies, and intake manifolds from oil contamination and carbon buildup.

Particularly effective on turbocharged, supercharged, and direct injection engines where oil vapour recirculation is a known issue. Closed loop system — does not vent to atmosphere (VTA), making it emissions compliant and track legal.

Features

• CNC-machined billet aluminium construction with anodised finish
• Multi-stage oil separation baffling
• Multiple inlet and outlet ports for versatile custom plumbing
• Integrated dipstick for easy oil level inspection without removal
• Closed loop design — emissions compliant and track legal
• Universal fitment — suitable for any custom installation

Benefits

• Removes oil vapour before it enters the intake system
• Prevents oil contamination of intercoolers, throttle bodies, and intake manifolds
• Reduces intake valve carbon buildup — critical for direct injection engines
• Lowers hydrocarbon emissions
• Excessive oil collection can indicate a damaged engine — dipstick allows easy monitoring

Note: Universal fitment — verify mounting location, port sizing, and plumbing requirements for your specific application before ordering. Vehicle-specific kits are available for many popular platforms.

Part Number:

• 20-0219 — Radium Air Oil Separator Universal Kit

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
• ✅ Closed loop design — emissions compliant, track legal, and compatible with E85 and flex fuel builds