I'm trying to order a spare part for an older electronic device, and the seller has given me a specific product code. However, I can't seem to find any clear information on shipping costs for this particular item from their website without going through the entire checkout process. It's a bit frustrating because I want to compare total prices with other suppliers before committing. Is there a general method or a tool people use to look up shipping costs for a product code or SKU without having to complete a purchase?