ONLY IF we do not have your part(s) in the US, we will send your order from our UK central warehouse and our system will automatically calculate any Duties and Taxes (Tariffs) in the checkout.
We will Pre-Pay them to US Customs when we dispatch the order.
Depending on the product’s country of origin, materials and the de minimis for the country of origin set by US Customs, you may be charged in the checkout under the “Tax” section if Duties and Taxes (Tariffs) are due.
You will receive your order as usual (i.e. you will not receive any further request for import taxes.)