An item stabilizer configured to prevent lateral movement of an item (such as a product-supporting pallet) in a transport container. The item stabilizer includes a first item side engager, a second item side engager, and a connector attached to each of the item side engagers such that an item can be positioned on the connector between the item side engagers. The item stabilizer is configured to prevent movement of the item by engaging opposite sides of the item while the weight of the item and any products thereon or therein rest on the connector, thereby preventing the connector and the item side engagers themselves from moving laterally. Each item side engager respectively extends between one side of the item and one of the side walls of the transport container to limit the lateral movement of the item. Multiple item stabilizers can work together to hold an item in place.