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JLT Oil Separator (05-10 GT)

Item 62027
AmericanMuscle no longer carries the JLT Oil Separator (05-10 GT). Please check out 2015-2021 Mustang Oil Separators for an updated selection.
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    Video Review & Installation

    Hey I’m Justin with, here with a way to keep your 4.6L motor clean and sludge free, I’m referring to these JLT oil separators available in your choice of either black or satin fitting all 2005-2010 Mustang GTs. So what does an oil separator do? Well, just about every internal combustion engine has what is called PCV or positive crank case ventilation, this allows the small amount of blow by and gases that are produced during combustion to escape the crank case or block in a controlled manner. In just about every case, these oily vapors and fluids are rerouted through a PCV valve or breather tube, back into the intake to be burned up by your motor, the only problem with this is those oily vapors can oftentimes coat and dirty up the intake manifold, and in some extreme cases either cause damage, or lower the octane rating of your fuel by diluting your gas. This becomes even more of an issue on the supercharged or turbocharged cars where the crank case pressures can be increased, causing more of this oily by product or blow by to occur. That’s where these separators from JLT come into play. This kit mounts in line with your Mustang’s PCV system to catch any of that blow by or sludge we just talked about. We did install one of these on our 06 GT here a little while ago, and since then we’ve done some pretty hard driving, a few Dyno pulls and maybe an odd burnout or two. With that said, let’s take the kit off and see what we’ve collected. And there you go, this oily mess would have otherwise ended up going back into our intake manifold to be burned off by our engine. Taking a closer look at this kit from JLT you’ll actually notice it’s pretty simple. JLT utilizes a 2 ounce Billet aluminum collector, that is available in your choice of either black or satin, the kit does install 2 factory preinstalled hoses along with the fittings making this an extremely easy plug and play install here that should take you no more than a few minutes. You’ll simply want to remove the factory hose first, and then reinstall the JLT in reverse order. In the end, if you want to help keep your 3 valve 4.6L motor free of sludge, then going with this JLT oil separator would be a great place to start.

    Product Information

    Features, Description, Q&A, Specs & Installation


    • Reduces Engine Sludge
    • Billet Aluminum
    • Satin Anodized Finish
    • Easy Plug-And-Play Installation
    • Drivers Side (PCV Side) Kit
    • Includes New PCV Line with Fittings
    • Fits 05-10 Mustang GT


    Reduce Sludge. In your Mustang's engine, crankcase exhaust is re-circulated back through your PCV system and intake, taking with it large amounts of oil vapors. This JLT Oil Separator kit installs in your PCV line to filter out oil before it can get into your engine's intake - where it doesn't belong - and cause damage.

    Premium Quality Kit. This high quality kit includes the JLT Oil Separator, which features billet aluminum construction with a satin anodized finish for superior style and durability. The 2 oz. tank base is easily removed for draining during oil changes, and is designed with a o-ring for a leak-free seal. Plus, JLT added a Ford Motorcraft metal mesh PCV pre-filter to prevent any oil from getting back into your intake.

    Easy Installation. This complete kit includes a factory PCV line that has already been modified with the necessary fittings and attached to the separator for a true plug-and-play installation.

    Application. This JLT Oil Separator kit is designed for 2005 to 2010 Mustang GTs. Designed for direct installation on the driver's side only (same side as the PCV valve).

    Technical Note. There is a unique JLT separator kit recommended for 2007-2010 Mustang GT500s - click here.


    CA Residents: WARNING: Cancer and Reproductive Harm -

    Installation & What's in the Box

    Installation Info

    What's in the Box

    • (1) Oil separator
    • (2) Hoses

    Questions & Answers

    10 More Questions

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