Replacement roller wheel / turntable support for Dacor combination microwave / convection over the range model PCOR30 PLEASE NOTE: There are some revisions within the following models that use a different roller depending on production The arms of this roller measure approximately 4 1/2" from the center out to the wheel. *** Please measure your original roller wheel / turntable support to make sure the wheels are no more than 4 1/2" from the center. This turntable support replaces Dacor part # 100657 This roller assembly is used in the following Dacor microwave convection over the range models... PCOR30, PCOR30SS