jay wrote:

After removing the front panel, I tracked the leak to a vertical crack
on the plastic outer tub. Can this be fixed with some type of epoxy or
should I just buy a new washer?

You need to identify the plastic: www.urethanesupply.com/identify.html

This web site also has extensive information about repairing plastics

Epoxy rarely works well on plastic, except for bakelite and polyester,
and your tub is definitely not made of either. With many types of
plastic can be repaired well only with solvent or heat welding.