Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter Daily

Ford Performance Oil-Air Separator - Passenger Side (11-17 GT; 12-13 BOSS 302; 15-20 GT350)

Item 390923
$0.00
Market Price $175.14 You Save 12% ($20.15)
Our Price

$154.99 (kit)

FREE Shipping

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
In Stock Ships same business day.
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features, Video & Details

    • Reduce Engine Sludge
    • Precision Molded
    • OEM Hoses and Fittings
    • Plug and Play Installation
    • Installs on the Passenger Side
    • Fits 2011-2017 GT, Boss 302 and 2015-2020 GT350 Mustangs

    Review & Installation Video

    Review & Install Video

    Hey, guys. Stephanie with americanmuscle.com, here with a review and install of the Ford Performance oil-air separator for the 2011 and newer Coyote. An air-oil separator is a simple mod that does some good for all applications. A catch can might not be one of the first mods that's on your list, or it may not even be on your list at all. But it's a very functional piece that has benefits to it, and it can do good for even a completely stock motor. The Ford Performance oil-air separator is going to be for those of you out there that are looking for an air-oil separator that has OEM hoses and fittings, and that has an OEM look instead of the aftermarket look that most separators have. The big difference with this separator is really going to be in the looks and styling. This really does look like an OEM part. I mean, look at it. It looks like something that you'd pop your hood and see in the engine bay, right from the factory. This is way more low-key than other separators and catch cans in my opinion, and it's not something that's going to stand out in the engine bay. As far as functionality, you're seeing the same benefits here and you might be wondering why you'd even want to consider an oil separator. With an internal combustion engine, the ignition of the air and fuel mixture inside of the combustion chamber is ignited and it forces the piston down. There's a small amount of that mixture that leaks past the piston rings and into the crank case. This is blow-by, and in that blow-by there's an oil mist. The blow-by and oil mist will settle in the intake, and over time they're going to form a gunky buildup. Now, technically speaking, there can also sometimes be some condensation, along with oil mist and blow-by. If you let all of this hang out, worst case, this stuff can make it into the oil inside of the crank case. This is not a good thing, and it's considered oil contamination and dilution. So you've got your PCV valve to help fight this issue. A PCV valve alone has its own list of weaknesses and engines have regulations, as far as emissions go. So the current setup, as far as crank case ventilation systems, means that an engine will have detonation or knock when oil is in the combustion chamber. Another thing that happens is carbon buildup on the piston tops and the valves, as well. Enter into the scene the oil separating catch can. It's going to push these gases, the blow-by and the oil mist, and the condensation, through a baffle system that's going to trap the oil and separate it from the other gases. The gases are going to be allowed to continue through the intake, so they can be burnt off, and the oil will stay in the catch can, so it doesn't move on and cause issues for the engine. This separator is going to sit right on the passenger side in front of the engine. It has a different, unique filter media system that's going to separate the air and the oil. It's also going to come with OEM fittings and hoses, which is a nice feature. The only thing that I don't like about this separator is the fact that there's no drain in the separator. A lot of other options out there have a drain in the bottom, which will allow you to easily drain the can. You have to find another way to empty this can, but that isn't the end of the world. Most people found that a syringe worked well for them, or you can always remove the separator from the car, since it installs easily, and drain the oil that way. When it comes to application, Ford Performance does label this as an "off-road use item only." That's because it does interfere with the PCV system and what's standard and accepted, as far as emissions and regulations requirements. When it comes to price, you're looking at just over $150 for this separator. Now, this isn't the least expensive option that you have, but it isn't the most expensive either. You are getting a direct-fit item here, with OEM hoses and fittings. The install for this is very easy, and should take about a half-hour tops. I'm going to call it a one out of three wrenches on the difficulty meter. All you're looking at needing to do is removing the breather hose and the passenger side valve cover, removing the electrical harness, and getting the separator into place using the provided pushpins. You reinstall the electrical harness and install the breather hoses as well, and that's all you're looking at for the install. Wrapping things up here with the Ford Performance oil-air separator, this is a direct-fit separator that comes with OEM hoses and fittings. The separator has an OEM appearance, and you can check it out more online right here at americanmuscle.com.

    Reduce Sludge. Make the most of your time on the track by preventing performance robbing blow-by from lining your engine in sludge with the Oil-Air Separator. Specifically designed for the Coyote or Voodoo engine, this separator boasts an OE look for a clean look without compromising function. It installs in your coyote's PCV line to filter out oil vapor from your crankcase exhaust that can easily gum up your throttle and intake or end in engine sludge.

    High Quality. This Air-Oil Separator is precision molded for custom fit and durability. It features a unique filter media to separate oil vapor from your Mustang's PCV system. Highly engineered for a factory look and fit, this kit includes OEM hoses as well as fittings, providing superior quality and lasting performance.

    Easy Installation. This kit is designed as a direct fit for your 5.0L Coyote or 5.2L Voodoo engine and requires no modification to your factory equipment for use. Fully plug and play, this kit includes easy to use push pins and OE fittings for a quick and painless upgrade.

    Application. This Ford Performance Oil-Air Separator is specifically designed for use on 2011 to 2017 5.0L Mustangs and 2015-2020 GT350 Mustangs. Not intended for use on highways or public roads.

    Please Note. This Oil-Air Separator is not designed to be used on Mustangs with the Ford Performance Power Pack 2, part# M-9603-M8A, due to the Throttle Body stack up/alignment.

    Technical Note. This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.

    Fitment: 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Details

    MPN# M-6766-A50

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Oil Separator
    • (2) Hoses
    • (2) Push Pins
    Installation Info
    Will it fit my Mustang?

      Customer Photos (50) Submit Your Photo

      View All 50 Photos

        Questions & Answers (26)

        5 Top Rated Questions

        I see some manufacturers have a separator for passenger and drivers side, and some like the Ford Performance have only for passenger side. To truly get the benefit on Oil separation, don't you need to have one for each side? Thanks in advance.

        • The Ford Performance Oil-Air Separator and many others are designed for the Passenger side, as this is where the majority of oil is pulled through. Some manufacturers offer a driver side separator as well for a complete setup, however the driver side will collect less oil.

        Helpful (5)

        Does this fit with the Ford Performance Power Pack 2 installed? On fords website it says it will not fit properly due to the larger throttle body, just wanted to see if you tried it.

        • No, this would have clearance issues when coupled with the larger throttle body and would require modification to work.

        Helpful (3)

        Once this separator is filled with oil, do you empty it or dispose the entire separator? Also, why can't this be used on public highways and the other aftermarket (JLT) separators are allowed on public roads? Thanks.

        • It alters the way the engine, which has been emissions tested, processes something the affects emissions. In this case, it removes oil which no longer burns in the engine and so, one would assume, actually makes the engine burn cleaner, not dirtier. But the way testing works, they need to get the whole thing recertified. Which is expensive. So they don't bother and then declare it's for off highway use only... knowing full well that most people will buy it for on highway use. Why do Ford call theirs out as for Off Highway Use while others don't? Because Ford have lawyers who scrutinize such things and make them while the smaller after market makers either don't have the lawyers, don't know to ask the lawyers or don't think it's a big enough issue to worry about. Being Ford's size makes you a lot more of a target.

        Helpful (2) Show 1 more answer

        I have and RS3 will this work with the supercharger and will it still pass state testing?

        • The Ford Performance Oil-Air Separator will not work with a Roush Supercharger. Legality for your state emissions program will depend on the individual state.

        Helpful (1)

        How often do you have to change the filter part of this separator?

        • Maintenance on the Ford Performance Oil-Air Separator is based on the type of driving the vehicle is subjected to, track type driving will require more frequent checks for an accumulation of oil in the separator but it is recommended to empty it every oil change with normal highway driving. The filter doesn't need to be changed just emptied. Simply remove separator and tilt so to empty oil out from the lower fitting. Do not empty from upper fitting!

        Helpful (1)
        10 More Questions
        Can this be used on a stock 2012 5.0? 1 answer
        Since this won’t for a 2018-2019, When will you have the M-6766-A50A for the 2018-2019 mustang? Can you modify this to fit the ‘18-‘19. 0 answer
        what push pin does this use? 1 answer
        Will this and the driver's side oil separator fit my 2018 GT350? Also, I see people commenting the driver's side oil separator is not necessary due to the low volume of oil flow. Do you know the truth on this? 0 answer
        Will this fit on a 2019 Mustang GT Performance Package 1? 1 answer
        What sort of modification is required to make this fit with the Power Pack 2? 1 answer
        Do they make one for the driver side on a 2013 GT? I would like to install both. 1 answer
        Regarding the "offroad" disclaimer and to others asking inspection questions. What's the verdict? I want to protect my car from "dirtier" combustion overtime, but why wouldn't it pass inspection? A "your engine burns too clean" fine or something? Or more like "this piece over here, even if it makes combustion cleaner, didn't come with the engine" fine. 1 answer
        It appears this catch can will not work if you have a blower on it. Can you recommend one that will fit? I have a 15GT with a Whipple on it. The benefits of a catch can are great. Too bad all Mfgs. don't include one as standard equipment 1 answer
        will this fit the 2018 gt 5.0l gt? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.7

          out of 5 stars

          Installation Time:Less than 1 Hour

          • Performance Gain 4.184931 4.2
          • Fit 4.724832 4.7



          • 5/5

            Installation Time: Less than 1 Hour

            October 20, 2019

            Super easy install

            Super easy install with OEM fitment and stock look. I chose this oil-air separator over others because it actually mounts to the car. The install took approximately 5 minutes.

            Ctrlesc

            Year: 2017 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            October 20, 2019

            There is a Drain

            Various reviews complain about no drain to this, but simply not true. It's designed to loosen the pushpin fasteners and disconnect the catch can from the hoses....very easy and pours out the bottom line. You will have to take the strut bar off if your car has one to get plastic cover out, just to make it easier to get in there.

            JosephB

            Year: 2014 Submodel: GT

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            October 15, 2019

            Easy mod for peace of mind

            great fit, looks good, for the price FP is the way to go

            Yuda

            Year: 2017 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            October 12, 2019

            Won't catch all oil

            It catches about 70 of the oil is my guess. But as oil from the engine cover comes up to the ca, some of it still gets sucked into the intake hose. I found a lot of oil in the hose going to the intake and felt oil residue in the intake. I am sure without the can, it would have been a lot worse. So definitely worth getting, just wish it would be designed so that the intake would come in with a plastic separator to provide physical separation or have an plastic to cover any incoming oil from possibly getting siphoned up the intake. Intake has high vacuum.

            COBRAGT350

            Year: 2019 Submodel: GT350

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            September 16, 2019

            EASY

            Nice fit and finish and it gives it a nice OEM look which I really like. Easy install. Would have gave it 5 stars for performance except there's no drain plug. No big deal you can use blue shop towels and soak up the oil. Just did a track day and it had a 1/4 in of oil so you know it works.

            RobertB

            Year: 2017 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            September 04, 2019

            looks good

            works great!! easy morning install. even before i had my coffee.

            KellyM

            Year: 2017 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            August 23, 2019

            Safety Assurance

            The product was relatively easy to install and only took about 30 minutes or so once everything is taken off. Its a tight fight, but it does work with the Power Pack 2 by Ford Performance. Overall really happy with this product and would recommend.

            StokerC

            Year: 2016 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            June 30, 2019

            Works Great!

            Product works great! Supe easy to install. Easy to maintain.

            StephenG

            Year: 2017 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            June 13, 2019

            Great buy

            Looks OEM and has near perfect fitment! Couldn't be happier with the results

            AnthonyT

            Year: 2017 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            June 06, 2019

            Ford Performance passenger side oil air separator

            Wish I had known about this when I first bought my Mustang. Installed about 3 months ago and checked the reservoir a couple of weeks ago. I was surprised to find about 1/4” of oil in it. It’s doing it’s job. Fairly easy for a novice like me to install. I feel it is a must have.

            LynneW

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            June 05, 2019

            Catch can

            Fit perfect. Less than 5 minute install in the dark. Looks factory

            BillyG

            Year: 2014 Submodel: GT

            Helpful (0)

          • 4/5

            Installation Time: Less than 1 Hour

            May 29, 2019

            Well made.

            Looks like it came on the car from ford. A little hard to empty, but then I don’t have to that often. Doesn’t see a lot of hard driving.

            Jeffs

            Year: 2015 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 19, 2019

            A Voodoo Must-Have

            Once I learned about the benefits of the oil-air separated, getting one for each side was a no-brainer. Top quality product, and super easy to install. Thanks!

            Dave

            Year: 2017 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            May 15, 2019

            Excellent style

            Looks factory, works great, awesome deal!. It took less than 5 minutes to install. Very easy to clean out.

            Fernstangs

            Year: 2013 Submodel: GT

            Helpful (0)

          • 3/5

            Installation Time: Afternoon

            April 24, 2019

            Good product but...

            I installed this product on my 16 GT350. The separator fit great and is made of great quality. The problem was the short hose was about 3/4" to long. I spent hours trying to get it to fit correctly without getting it to kink. I finally gave up and modified the hose. I cut 3/4 of an inch off the hose and then spent 3 hours trying to push the fitting into the cut down hose. After 3 hours of pushing and 3 blisters on my hand like I have never had before, I got it! But holy cow my hand hurts! After the hose was modified it fit like a glove. That's taking one for the team and love for your car. I did contact Ford Performance before I modified it and they did state they knew that I was talking about. They did not have a solution but send it back. Ford was extremely friendly and helpful. The separator is universal for other models so it may fit better on other models. I would still recommend this product.

            BeeRadd

            Year: 2016 Submodel: GT350

            Helpful (1)

          • 5/5

            Installation Time: Less than 1 Hour

            April 05, 2019

            ford gt350 oil air seperator

            came with all required parts and good online instructions tool 10 minutes to install, well thought out

            Don

            Year: 2016 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 28, 2019

            Factory Fit and Finish

            If you are like me and you like to track your Mustang, these units (left and right cylinder banks) are a must. They will save your engine in the long run and are cheap insurance. Not only that, but they will also let you know if you are having an issue inside your motor (i.e. if they start filling up with oil abnormally fast). The Ford units are not necessarily the easiest to empty, but unless you are at the track every week or two, this is not a problem. Nothing beats the fit and finish of a factory product. You will not be disappointed!

            Vikingnene

            Year: 2016 Submodel: GT350

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            March 13, 2019

            Easy install

            Very easy install, took about 15 minutes. Really like how this mounts to the head and doesn't just hang from the tubes. Looks completely stock and like it was there from the factory. Car won't be driven for another couple of weeks so will be a while before I can check out how it works. Only issues I have with it is how to drain it when it's time and attaching the wiring harness.

            JonM

            Year: 2011 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            February 28, 2019

            Great product

            Had this installed along with performance coil pack and NGK iridium performance plugs, I have other mods on my 2017 Mustang. The improvement in throttle was noticed immediately.

            WilliamB

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Less than 1 Hour

            February 26, 2019

            No more milk

            Being from a cold state warming up and cooling down seems to have a tendency to cause that milky goo under the oil cap I have had the oil air separator on for a while now it looks like its cleared that issue up

            LarryS

            Year: 2017 Submodel: GT

            Helpful (0)

          Related Mustang Categories