Cooper Discoverer STT Pro | 37x12.50-17 | Mud-Terrain

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The Discoverer STT PRO is Cooper's Off-Road Maximum Traction Tire.

This tire was developed for trucks, Jeeps and SUVs and extreme buggies who want confident, go-anywhere traction without sacrificing on-road performance. The Discoverer STT PRO is designed to provide impressive off-road capability combined with acceptable levels of on-road traction and civility.

Beginning with a robust, chip- and tear-resistant compound, the Discoverer STT PRO is molded into an aggressive, high-void tread pattern. Deep starting tread depths and alternating cleats and scoops in the shoulder lugs enhance traction in mud and other soft terrain, and mud release dimples help the tire self-clean. Anti-stone retention ribs at the base of the tread grooves eject small rocks to assist with preventing punctures due to stone drills.

Wide lateral and circumferential channels aid hydroplaning resistance, and in-block siping creates additional biting edges for improved grip in slippery conditions.

The Discoverer STT PRO utilizes Cooper's Armor-Tek3 Construction technology, which features a robust, three-ply polyester casing to improve puncture resistance. Two wide, strong steel belts support the tread and are reinforced by a single nylon cap ply.

While Off-Road Maximum Traction tires, which are often called mud tires, are branded with the M+S symbol and able to churn through deep snow, their typical oversize applications and the relative absence of snow-biting sipes in their large lugs can challenge their on-road wintertime traction on packed snow and icy surfaces.

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Warranty Information


Customer satisfaction is our top priority. We accept returns on unused products, buyers have decided against after receiving, on a case by case basis. Contact us if you ordered a product that you have since decided against, and we will do our very best to get it returned or exchanged.

Returns may be charged a 5% to 15% handling fee. Not all returns will be charged. This is determined on a case by case basis.

Any unused merchandise in the original packaging may be returned within 10 days of the original purchase date, or received date depending on the shipping timeline. There are no returns on electrical items, special orders such as build to order products. Discontinued items will be evaluated to determine if the product can be returned. No returns will be accepted of damaged (by user) or used items.

Return request need to be submitted using the attached form, so we can issue an RMA. Please include original packaging and a copy of your invoice or receipt.

For more information or any other questions you may have, please call us at 1-75-553-8333 or email during normal business hours 8:00am to 5:00pm PST Monday to Friday

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