Underseat Storage Box is a direct fit for the following. Genuine GM Part Number: 23183674. The item "OEM NEW Underseat Storage Box Plastic 07-19 Silverado Sierra Crew Cab 23183674" is in sale since Wednesday, June 11, 2014. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Interior\Other".The seller is "quirkparts" and is located in Braintree, Massachusetts. This item can be shipped worldwide.