Your order ships from one of our four Distribution Centers located in western and eastern and western America, typically from the center closest to you.If an item is unavailable at the nearest center, it will ship from the next closest, with a maximum of two shipments per order. You’ll receive a detailed packing slip indicating where each item is shipped from for easy tracking.

We ship orders via FedEx,DHL or common carrier. Next Day Air is available upon request for an additional fee.For orders placed after 12:00 PM (local time), we may ship in parts to ensure you get items as soon as possible. When this happens, FedEx may deliver on consecutive days, with the packing slip included in the final box.

No, you won't receive customs or import duties. We’ve already prepaid them for you when shipping from our U.S. warehouse! However, once our U.S. warehouse stock runs out, prices will increase as products will be shipped from Hong Kong."

It’s our goal to ensure you have the best possible experience with us, and so we offer returns valid for 30 days from the date of arrival. As such, you will be responsible for paying for your own shipping costs for returning your item.

If your order is not fulfilled, you can contact our engine expert to change it for you. If not, all items purchased during a sale or marked at a discounted rate cannot be exchanged or refunded. This policy is only valid for the items in the USA warehouse. If you send them back to us for a return we will not be able to process a refund. If you have any questions about engines, please reach out to our customer service before placing your order. Email service@stirlingkit.com

Our U.S. warehouse products are primarily shipped to U.S. and Canadian customers. For other countries, packages will be shipped from Hong Kong, and customs/import duties may apply depending on your local regulations.