SKU: 94903519046

AOS-R, UNIVERSAL KIT

Sale price$118.77 Regular price$131.97
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

AOS-R, UNIVERSAL KITA high powered modified engine tends to generate excessive blow by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Catch Cans, the AOS (Air Oil Separator) kit is responsible for keeping blow by oil and other pollutants out of the air intake and intercooler (if equipped) systems. The main difference is that an AOS system returns collected oil back into the oil pan so

A high powered modified engine tends to generate excessive blow-by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Catch Cans, the AOS (Air Oil Separator) kit is responsible for keeping blow-by oil and other pollutants out of the air intake and intercooler (if equipped) systems. The main difference is that an AOS system returns collected oil back into the oil pan so there is no servicing required.

IMPORTANT INSTALLATION NOTES:

-In order for the AOS to function properly, a port must be supplied on the engine for the oil to return through.
-The AOS must be mounted high enough in the engine bay so that the port on the bottom is higher than the oil return port on the engine.
-for heating purposes, engine coolant must be routed to the AOS-R to prevent condensation.

Without a properly designed AOS, water condensation can develop and find its way in the oil pan contaminating engine oil. Engine coolant lines are routed through the Radium Engineering AOS in a specially designed heating chamber (shown above). This keeps the AOS warm and prevents water from condensing inside. Because water is more dense than oil, there is an integrated water trap found around the bottom perimeter that prevents condensation from descending into the oil pan.

For AOS crankcase plumbing, the valve cover vent(s) are routed into the top inlet where the stainless steel condensing material separates the oil from the gasses. The filtered liquid oil is collected at the bottom of the AOS and drawn into the oil pan. Meanwhile, the clean crankcase air can either be vented to atmosphere (VTA) or recirculated to the turbo air inlet pipe. Shown below is a plumbing example.

With a properly operating system, the fluid level inside the AOS will be empty after sitting. If there is a possible return obstruction, simply unscrew the anodized billet aluminum dipstick for inspection. Conversely, the entire billet unit disassembles into 3 large pieces for servicing.

Benefits
-Effectively raises the octane and increases engine performance with cleaner inlet air
-Prevents oil buildup in the intake or intercooler system walls, throttle body, intake manifold, etc.
-Lowers hydrocarbon emissions

Included
-Machined alumium Radium Engineering AOS
-Anodized universal mount that permits 360deg rotation
-Two 5/16" barbed fittings for coolant lines
-Stainless steel hardware

Ports
Top Port: 7/8"-14 threaded for 10AN ORB fittings
Side Port: 7/8"-14 threaded for 10AN ORB fittings
Bottom Port: 7/8"-14 threaded for 10AN ORB fittings
Coolant Ports: 7/16"-20 threaded, includes two 7mm (or 5/16") barb fittings

Measurements
AOS Height: 6.94" (top of dipstick to bottom of AOS)
AOS Diameter: 3.45" Round
AOS Capacity: 20.3 oz (600mL)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 94903519046

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★★★★★ 5
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Loved every piece of it. I did end up cut some it to fit my design better. They stick on pretty well all night through my sweat.
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Reviewed in the United States on January 25, 2026
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★★★★★ 5
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Reviewed in the United States on November 7, 2025
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Mirielys
Battle Creek, US
★★★★★ 5
Bellas
Lindasssss me gustaron y me duraron todo el dia
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Reviewed in the United States on August 4, 2025
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J.
Lexington, US
★★★★★ 5
Nice for raves/festivals
A good set of pre-arranged face jewels. Quick and easy to apply compared to sets that just come with individual pieces meant to be placed one by one. Goes on easy, adheres well. A nice way to spice up a night out.
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Reviewed in the United States on October 9, 2024
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P. Chan
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★★★★★ 5
fun face gems - takes the guesswork on figuring out design of face gems
Simple to put on a nice face gem design. Just peel and stick. You can make it last longer by just doing one side per use instead of applying one whole sheet at once. Doesn't hurt when removing and no irritation afterwards.
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Reviewed in the United States on October 11, 2024

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