I think the replacement is UMCR114-WC01A, which is a hair smaller in all dimensions, but just a hair. You may need to tweak the above model for the right voltage and color, etc.
Also, I don't have them next to each other and am not even sure if I've ever seen the new model in person, so check all of the specs for your application, etc. (Or get a countertop unit, see other thread ;-)
Width: 13 13/16 Inch
Depth: 24 13/16 Inch
Height: 18 7/8 Inch
Vs
Width: 14 Inch
Depth: 25 1/2 Inch
Height: 18 9/16 Inch