Replacement crockpot liners can be bought on the Sears website for brands that include Hamilton Beach, All-Clad and KitchenAid. Replacement inserts for Crock-Pot brand crockpots are available through the Crock-Pot website.
As of February 2015, the price of replacement crockpot inserts available through Sears ranges from $19 to $74, depending on factors that include brand and size. Crock-Pot brand inserts vary based on model. The stoneware replacement for the 5-quart round slow cooker costs $15, as of February 2015.
Sears also sells replacement control knobs, power cords, lids and gaskets for crockpots from brands that include Rival, West Bend, Presto, Breville and Kitchen Selectives.