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Moroso Air/Oil Separator (05-10 GT)

Item 14443
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Reduces Engine Sludge
      • Polished Billet Aluminum Housing
      • Includes 36" Rubber Hose and Fittings
      • Easy Installation
      • Fits 2005-2010 Mustang GT


      Reduce Sludge. Reduce engine sludge in your 4.6 by diverting nasty "blow-by" (a combination of exhaust gases and oil) into a Moroso Air/Oil Separator a.k.a. "catch can" where the contaminated oil is separated out from the exhaust gases before being recycled back into the intake to be re-burned, thus preventing the used oil from re-enter the system to gum up your engine.

      Superior Quality Materials. The body of this Moroso Air/Oil Catch is constructed from billet aluminum for strength and has a polished finished to complement your Mustang's engine compartment. The Moroso separator features 90° inlet and outlet fittings, and includes a 1/2" thick rubber hose.

      This Moroso Air Oil Separator is specifically designed to fit the 2005 to 2010 GT and Bullitt Mustangs with the 3 valve 4.6L modular engine.

      Fitment: 2005 2006 2007 2008 2009 2010 Details

      MPN# 85477

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (33)

      Write a Review

      Ratings Summary

      4.6 out of 5 overall rating from 33 customers

      • January 29, 2019

        5 2007 GT - Joe

        Looks great. Just installed

        Just installed it. So haven't got to drain it yet. But installation was easy was about 20 min or so.

        Helpful (0)
      • December 30, 2018

        5 2007 GT - TripleT


        Everyrhing I expected, easy to install, easy to follow instructions. I store my mustang all winter so this product definitely helps keep the mess out of the motor. Would 100 recommend.

        Helpful (1)
      • December 04, 2018

        5 2008 GT - MarkFrat

        eat Oil catcher

        This oil catcher looks and performs like it was designed for this 4.6l motor

        Helpful (1)
      • June 27, 2018

        5 2007 GT - Joshua

        good stuff

        been using this for about a year now and every oil change ive noticed the oil coming out cleaner, definitely does what its supposed too, ive had no problems. kinda wish it came with fittings though and I didn't have to Frankenstein the oem fittings with the hose they supply but over all great product

        Helpful (3)
      • March 15, 2018

        5 2005 GT - WilliamO

        Moroso Oil Separator

        Moroso Oil Separator looks very good and was very easy to install.

        Helpful (4)
      • February 11, 2018

        5 2006 GT - ChrisC

        Love it

        We are adding a supercharger to our 06 mustang gt next winter. So we are starting to prepare the car for it. The morose air oil seperator not only looks good under the hood but the construction is very high quality. It's a little bigger then I originally thought but it is very light. Just wish moroso made a seperator for the passenger side of the vehicle so they match.

        Helpful (3)
      • January 18, 2018

        5 - AnthonyC

        great product

        Very well made, does what it says... easy install, instruction pictures could be clearer, tight fit in the GT but it worked...would highly recommend

        Helpful (6)
      • October 18, 2017

        5 2006 GT - Jax

        Oil Separator

        I ordered a Moroso air/oil separator and as usual it arrived in a timely manor, also without shipping cost. Installing it took less than half hour. Being chromed, it looks great. I drain it about every two or three fuel ups and get better than a tablespoon of oil not deposited in the combustion chamber. That's a good thing!

        Helpful (5)
      • October 01, 2017

        5 2009 GT - Jf721

        nice fit and looks


        Helpful (6)
      • August 29, 2017

        3 2010 GT - KimJ

        Catch can looks great....

        The bracket that comes with it was a huge disappointment. You order this nice polished chrome catch can and the bracket is this horrible looking steel grey color. I painted mine to match my engine bay. I guess I expected a little more from Moroso. The product overall is high quality and works well. Install was easy.

        Helpful (5)

      Questions & Answers (5 answers)

      5 Top Rated Questions

      can this be put on the passenger side?

      • The Moroso Air/Oil Separator can be mounted virtually anywhere that will provide sufficient room for the mounting bracket. If you place it on the drivers side, you may need some additional hose depending on how it is routed.

      Helpful (1)

      What is the fluid capacity of the catch can? Measuring in anecdotally driven miles seems inaccurate and unnecessary.

      • Unfortunately Moroso does not give any listings for capacity.

      Helpful (0)

      Is it practical to run a hose from the PCV off the valve cover to the inlet of the air/oil separator, and then just put a breather filter on the outlet?

      • Doing that with this Moroso Air/Oil Separator would be considered a vent to atmosphere unit which will result in a heavy oil smell, it may result in oil dripping through the filter. Most states do not allow the PCV to be vented to the atmosphere, so you may fail your emissions test.

      Helpful (0)

      Good day What are the inlet and outlet ports to be connected to the PCV and the intake manifold? Thanks

      • With the Moroso Air/Oil Separator the inlet and outlet hoses are connected to the intake manifold PCV and the other port is connected to the breather on the intake.

      Helpful (0)

      Is it necassary for two of these for the driver and passenger side pcv valves or just one?

      • It is not necessary to have two Oil Separator's on your Mustang. One Oil Separator will do a great job at filtering out the oil in the vapors that can travel into the intake.

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Tank Body
      • (1) Billet Cap
      • (1) Ball Valve
      • (1) 90 Degree Drain
      • (1) Stainless Steel Bracket
      • (2) 90 Degree Barbed Fittings
      • (1) Length of 1/2" Hose
      • (1) Drain Cap
      • (2) 1/4 x 20 SHCS x 5/8
      • (1) 1/4 x 20 SHCS x 1

      Will It Fit My Mustang

      • Bullitt - 08, 09
      • GT - 05, 06, 07, 08, 09, 10

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