A few questions and a suitable replacement should be easy to find.
#1 Can you measure the internal dimensions of the enclosure?
#2 Can you measure the port diameter and length?
#3 Can you measure the cutout for the woofer on the box, don't want to get one that does not fit.
With those we can determine the enclosure volume and tuning frequency which should help in determining a good replacement.
Right now looking at some pictures I am guessing it is about 1.2cuft net and port is maybe 3” in diameter and about 10” or so long with would put tuning in the mid thirties. But I would like you to double check those estimates when you get the chance.