As per the factory, the original part was 19 3/4 inches and the new substituted part is 16 1/4 inches. According to the factory, this part will still work with your appliance.
Installation Instructions
james from evansville, IN says,
glide bearings came apart due to wife overloading drawer
removed 1 screw from each glide, pulled parts out, replaced parts and screws, slid drawer glides into bearing glides. job done, very easy and fixed problem....read more