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Steeda Black Billet S550 Mustang Oil Separator GT/GT350 (2015-2022)

4 Review(s)
$45.49 (24%)
Steeda's Black Billet S550 Mustang Oil Separator for 2015-2019 Mustang GT is crafted from aerospace grade billet aluminum for light weight and great looks. Connects to PCV hose to prevent oil and crankcase vapors from getting into the intake manifold and
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Part Number: 555 3716
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Steeda's Black Billet S550 Mustang Oil Separator for 2015+ Mustang GT is crafted from aerospace grade billet aluminum for light weight and great looks. Connects to PCV hose to prevent oil and crankcase vapors from getting into the intake manifold and decreasing your fuel octane.

Steeda's Black Billet S550 Mustang Oil Separator for 2015+ Mustang GT is fully sealed to ensure no vacuum leaks, and simple to service. Holds up to three ounces of fluid for service intervals lapsing each oil change.

Same as 555-3713 just Black anodized. Plain, no engraving.

Looks great and matches with the rest of our line of underhood dress up items.

Includes hardware for installation.

Purchase your Steeda Black Billet S550 Mustang Oil Separator for your 2015+ Mustang GT at Steeda Autosports today!

Special Note: The item is black in color and plain with no logo

Warning: Not approved for sale in California or states that require a California E.O. #. This part has been designed and is intended for off-road application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations.

Note: Federal and several state and provincial laws prohibit the removal, modification or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. Steeda Autosports assumes no liability for any violations arising out of any federal, state or provincial emissions or safety requirements on motor vehicles arising out of the customer's modifications and/or use of Steeda products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.

This limited warranty is the only express warranty applicable to Steeda Autosports products. Other rights may arise or vary from state to state in the United States. Steeda is not responsible for any time for which you may lose the use of your vehicle, any inconvenience you might be caused, the loss of your transportation or any part thereof, or any other incidental or consequential damages you may have.

Product Benefits
  • Fits any car with a 3/8" or 1/2" vacuum system
  • Lightweight Aerospace Grade Aluminum
  • Matches Steeda's line-up of bling caps
  • Simple to service
  • Can aid in reducing carbon build-up in Direct Injection engines

CA Residents: Cancer and Reproductive Harm WARNING

Scott Boda here with Steeda Autosports. Today we're going to install our Steeda S550 Oil Separator Kit. Begin by removing the factory hose that's connecting from the PCV to the intake. We have these kits available in both in black and billet aluminum. Both engraved with a 5.0 logo and not engraved. The kit we'll be installing today is our Billet Black Oil Separator which will prevent oil and crankcase vapors from entering the intake manifold and decreasing your fuel octane. Install the filter onto the retainer and insert it into the bottom of the cap. Do not over-tighten the filter and retainer or the filter itself will crush and be ruined. Lubricate the provided o-ring with a small amount of general purpose grease and install the o-ring onto the small undercut above the threads on the cap. Next, thread the cap and bowl together, ensuring the o-ring does not get pinched and makes a tight seal between the cap and the bowl. Install and tighten the barb hose fittings into the Steeda Billet Cap. The fittings can be used in any desired combination. You will have to cut your factory line in order to splice the oil separator in. Use the 2 provided clamps to seal the PCV hoses to the barb fittings. The compression clamps will need a pair of crimping pliers or similar tool to crimp them tight. There are 2 extra clamps provided, in case of a mistake, or if you choose to mount the separator somewhere else on the engine at a later time. Re-install the assembly into the factory location to compete the install. Congrats, you have now installed the Steeda Billet Oil Separator for your S550 Mustang. Remember, when taking your Mustang or Ford vehicle to the next level, choose none other than Steeda Autosports, where Speed Matters!
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Fitment & Features


Manufacturer: Steeda Autosports
Made in USA: Yes

Installation Information:

Level of Difficulty: Easy
Install Time: About 30 Minutes
Tools Required: Basic Shop Tools
Print Instructions: Installation Instructions
Install Video:

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

Customer Reviews

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Average Customer Ratings


Steeda Black Billet Oil Separator
Probably the easier install after assembly of the canister. My installation used painters tape, heat gun, and hack saw to position my separator. Start by marking off which section of the tube to remove with the painters tape. Next select the tube fittings for best fit. Cut tube with a hack saw. Take off tape and heat end of tube. Slide over fitting and compress tubing until cooled. Check fit and routing of separator. If needed, use heat gun to soften tubing to move separator to desired location. Support while allowing to cool. Done.
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Super easy install
This was hands down one of the easiest upgrades I've ever installed on a vehicle. I was also pleasantly surprised that they even included a new PCV hose with the kit so you didn't have to cut your original one in half and run the risk of not being able to revert back. (I didn't see one in the picture, so it was definitely a big surprise when I opened my box and saw one) I have about 15k on my engine, so it's not A HUGE necessity at this time, but I did indeed see that I had quite a bit of blow-by after about 5000 miles. Worth every penny!
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Good quality but hard install
Got this for my 2019 Bullitt and the quality is excellent however the install isn't easy. Cutting of the factory hose is required which makes it hard to fit exactly they way you want it. I had to cut the hose multiple times to make it fit right. I'm not sure if that is just a problem for the Bullitt in terms of space but my friend has the JLT oil separator and his was made for the Bullitt and even has the instructions specially for the 2019 Bullitt. The JLT is also a plug and play and does not require cutting of the hose. Overall I am satisfied with the product but the JLT might have been a better and easier route.
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Verified Buyer  
Super quick install!
Super quick install! Took me about 20-30 minutes from the moment I cracked open the box. Hardest part was forcing the hose fittings into the PCV hose on either end, but a little bit of patience and muscle allowed them to snap right in. A quick squeeze on the compression clamps on either end, and the catch can was finished and ready to rock!
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