Wal-Mart sells seat belt extenders by the Superior Pump brand, as of 2015. Shoppers can check Walmart.com for in-store availability by clicking the Free Pickup link on each seat belt extender product page. Most seat belt extenders are available for online purchase at Walmart.com.
Seat belt extenders are available in the Auto and Tires section of Walmart.com under the Interior Car Accessories link. Prices for a Superior Pump seat belt extender at Wal-Mart vary depending on model type. Walmart.com offers sorting of seat belt extenders by price, newest listed and average customer rating. Wal-Mart offers free shipping on online purchases over $50.