To find replacement parts for a Shop Vac, go to ShopVac.com, and locate the Filters/Accessories tab at the top of the screen. Move the cursor over this tab to reveal a drop-down menu, of which the last option is Replacement Parts. Click on this link to view all available Shop Vac replacement parts. These are organized into sections entitled Replacement Castor Wheels, Replacement Parts and Motor Replacement.
To order a replacement part from the Shop Vac website, click on the picture of an item, and select the green Add to Cart button on the product's page.
Sears PartsDirect also sells replacement Shop Vac parts on its website. As of October 2015, this site had replacement parts, repair parts and accessories for 14 models of Shop Vacs. Locate the desired model, and click the orange Shop Parts button to the far right of the model's name to find a specific part.
EReplacementParts.com also carries replacement parts for various Shop Vac models. A feature on the website enables the customer to enter the model number of a Shop Vac to find replacement parts for it. Shop Vac replacement parts are located on EReplacementParts.com under the Vacuum Parts tab in the Repair Parts section.