Cyclonic air filter assembly for an engine

An air filter assembly, comprising:

• a housing defining an interior volume, wherein the housing includes a first housing end portion and a second housing end portion,
• an air intake formed in the housing;
• a debris outlet formed in the housing;
• an air outlet formed in the housing and including a crossbar positioned within the air outlet;
• and
• a filter element including a first end portion, a second end portion, and a filter media positioned between the first end portion and the second end portion, wherein the first end portion includes a first body and a boss extending outwardly away from the first body, and wherein the second end portion includes a second body and an opening formed through the second body;
• wherein when the filter element is inserted into the interior volume in a first orientation, the first end portion is positioned near the first housing end portion with the boss in engagement with the first end portion, and the second end portion is positioned near the second housing end portion with a portion of the air outlet positioned within the opening;
• and
• wherein when the filter element is inserted into the interior volume in a second orientation axially opposite to the first orientation, the first end portion is positioned near the second housing end portion with the boss in engagement with the crossbar of the air outlet, and wherein the engagement between the boss and the crossbar prevents complete installation of the filter element within the interior volume.