Air cleaner and filtration assemblies

An air cleaner housing, the air cleaner housing comprising:

• a) a main body defining an interior volume and including an end wall defining a first axial opening with a first diameter;
• and
• b) an outlet assembly secured to the main body at the location of the first axial opening and including:
• i) a first part having a first radial flange located on an interior side of the main body end wall and having a first circumferential wall structure, the first part defining a radial sealing surface for a filter cartridge;
• ii) a second part coupled to the first part, the second part having a second radial flange located on an exterior side of the main body end wall and having a second circumferential wall structure, the second part defining an air inlet or outlet opening;
• iii) wherein the first and second circumferential wall structures are permanently joined together at a circumferential weld joint such that the main body end wall is between the first radial flange and the second radial flange and such that the outlet assembly is rotatable with respect to the main body;
• iv) wherein the first part defines a third circumferential wall structure and the second part defines a fourth circumferential wall structure, wherein distal ends of the third and fourth circumferential wall structures are coaxially aligned and extend towards each other.

An air cleaner housing, the air cleaner housing comprising:

• a) a main body including an end wall defining a first axial opening with a first diameter;
• b) a cover removably secured to the main body such that the cover and main body cooperatively define an interior volume;
• and
• c) an outlet assembly secured to the main body at the location of the first axial opening and including:
• i) a first part having a maximum radial dimension that is greater than the first diameter and is located on an interior side of the main body end wall, the first part defining a radial sealing surface;
• ii) a second part coupled to the first part, the second part having a maximum dimension that is greater than the first diameter and located on an exterior side of the main body end wall, the second part defining an air inlet or outlet opening;
• iii) wherein the first part and the second part are permanently joined together at a circumferential weld joint such that the main body end wall is between the first and second parts and such that the outlet assembly is rotatable with respect to the main body;
• iv) wherein one of the first and second circumferential parts defines a tongue and the other of the first and second parts defines a groove, and wherein the circumferential weld joint is formed between the tongue and groove.