Moroso air/oil separator catch can for 2012–2018 Jeep JK 3.6L applications is a small-body billet aluminum unit with a black finish that separates oil and crankcase vapors from intake air to help reduce contamination. Offered as a direct-fit option for those JK models, the black-machined small body delivers the same oil-capture function while providing a darker appearance to suit varied engine-bay styling.
Moroso 12-18 Jeep 3.6L JK Air/Oil Separator Catch Can - Small Body - Billet Aluminum - Black Finish