Prices for GE microwave parts can be found on the GE Appliances website. Parts information, including prices, can also be found at other online retailers including eBay and RepairClinic.com, as of February 2015.
To find prices for a GE microwave, go to the customer care section of the GE Appliances website and chose the parts and accessories option. It is important to enter the exact make and model of the microwave prior to a spare part search. As of 2015, a range of GE microwave parts, including filters and light bulbs, is available with each item clearly marked with its model number.