Bosch dishwasher racks can be purchased online from both Amazon.com and eBay. Depending on the condition and type of rack, prices range from about $35 to over $200 for each rack as of 2015.
On eBay, there are listings for both top and bottom Bosch dishwasher racks, so buyers should make sure they have the right rack. In addition, there are also rollers and clips available for Bosch dishwasher racks, as sometimes those can be replaced instead of the entire rack.
Amazon also has a number of parts, such as clips and rollers, in addition to the Bosch racks. Amazon also has listings for original equipment manufacturer parts for Bosch dishwashers and racks.