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All customers must work with their local Authorized Dealer to start warranty claims

General Return Policy

All products sold and shipped* from Thunderstone Manufacturing may be returned within 30 days of receiving it. All product(s) returned must be in original packaging, including all items originally packaged with the product (documentation, user’s manual, accessories, etc). All products are subject to a 20% re-stocking fee. After 30 days all purchases are final.

*General return policy excludes all custom tarps or product(s).


If your item(s) is defective, is not the item you ordered, or was damaged in shipping you may return your item(s) to Thunderstone Manufacturing. You will be entitled to a full refund or replacement, which will then be credited back to your original method of payment only. If the return is a result of our error, defective materials, or damaged during shipping, you will not be charged for return shipping.


All orders are shipped F.O.B. from Thunderstone Manufacturing, LLC, Lincoln, NE. All shipments are made by most reasonable means in accordance with size and weight of order. Other shipping arrangements may be made, but must accompany sales order.


Thunderstone Manufacturing warrants each product to be free from defects in material and workmanship for a period of times set forth in the warranty table listed below. During this period of time, if a customer is unable to resolve a product problem and Thunderstone Customer Service determines the product to be defective, a Return Goods Authorization (RGA) will be issued. Follow receipt of an RGA number, the customer may be asked to return the product to Thunderstone Manufacturing, freight prepaid. This warranty is voided if the customer uses the product in an unauthorized or improper way, or in an environment for which it was not designed. This warranty is applicable to the first purchaser only.

Thunderstone Warranty Categories

Product DescriptionWarranty Coverage
Thunder Power Tarp 7000 Series Kit4 Year Motor / 3 Year Component Parts
EZ Flow Hydraulic Trap Kit3 Year Component Parts / 1 Year Hoses & Cylinders
Thunderstone Tarps1 Year Parts Only
Thunderstone Mesh Tarps90 Days Parts Only
All Remaining Catalog Items90 Days Parts Only
Thunder 7000 Upgrade Kit1 Year Parts Only

Items Required for Warranty Claim

To file a claim or if have any questions concerning warranty, contact the Thunderstone Manufacturing Customer Service Department.

Thunderstone Manufacturing, LLC reserves the right to deny any returned item(s)
Note: All Prices in this catalog are subject to change without notice.
* 99% Fill Rate within 48 Hours excludes items on back order & special item orders