DC64-00828A was the original part number and DC64-00828B is the current updated version
XP12002777 Dryer Idler Pulley and Spring
not starting
or both the wheel and arm have significant wear
WR51X443CM Refrigerator Defrost Heater Replaces WR51X443 Wheel DC64-00828A was the original partWR51X443CM Refrigerator Defrost Heater Replaces Part Numbers: WR51X443, 162D7141G004, 197D1482G001, 2001, AH303934, AP2071465, EA303934, PS303934, WR51X0344, WR51X0345, WR51X0372, WR51X0405, WR51X0443, WR51X0461, WR51X344, WR51X345, WR51X372, WR51X405, WR51X461. (2) glass tube heaters included 155V, 772W 12 13 16" overall, dual tube with harness and DF thermostat. This is an aftermarket part that can be used as a replacement for the OEM part.