Bigcommerce Global Product Image Swap Plugin.

This quick install plugin by 190west allows your customers to view two different images of your product while browsing your homepage, category and brands pages.

If a product carries multiple images, this plugin will show the second image listing from product thumbnails. When a user hover over any product listed in Categories, Featured Products, New Products. etc. It will display the second image for that product. If there is only one image available for a product it will remain the same on hover.