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Radium Engineering

Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit

MPN: 20-0607 Catalog #: 001142553 Category: Oil Separators Check Vehicle Fitment

Product Details

Air oil separator kit for the late model Subaru platforms. Includes all parts need to complete the installation. AOS is fully serviceable.

The Radium air/oil separator traps blow-by oil before it can be sent back to the induction system. The collected oil is heated by the AOS to remove moisture, then allowed to drain back into the engine block, making this a zero maintenance system. Installation is done using factory mounting points. All required hardware, hoses and other items are included in the kit.

Radium Engineering 2015+ Subaru STi Air Oil Separator-Return Kit

INSTALLATION INSTRUCTIONS AVAILABLE AT WWW.RADIUMAUTO.COM

AOS-R KIT, SUBARU, 2015+ STi

Engine Oil Catch Can Kit

AOS KIT SUB

Vehicle Fitment

Please verify year, make, model, and any notes before ordering.

Product Specs

Brand
Radium Engineering
Part Number
20-0607
Catalog Number
001142553
Product Line
Air Oil Seperator Kits
Category
Engines & Parts
Type
Oil Separators
UPC / Barcode
Radium 20-0607
Vendor Product Category
Engine Components
Vendor Product Subcategory
Oil Separators
Length
12.30 in
Width
12.00 in
Height
6.60 in
Weight
8.40 lb
Units Per SKU
1
Freight / LTL
No
Air Restricted
No
Prop 65
Unknown
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 9 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 9 available as of 6/4/2026.

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