Its not easy to find new filters in discontinued sizes like 24458 or 20073 made by Fram, Purolator, or brands with limited filter PNs.
Try the wix/napa/carquest/baldwin/donaldson/hastings..for those, discontinued by other brands, PN's.
Try the Wix 51344 or 51347. I wonder if Mitsubishi uses large filter mounts that might have room for something along the lines of an 51626.