--- product_id: 553284273 title: "Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire" brand: "cooper" price: "VT576831" currency: VUV in_stock: true reviews_count: 5 category: "Cooper" url: https://www.desertcart.vu/products/553284273-cooper-discoverer-stt-pro-all-season-31x10-50r15lt-109q-tire store_origin: VU region: Vanuatu --- # 35-inch diameter for commanding presence All-season tread for year-round traction Armor Tek3 tech for ultimate sidewall durability Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire **Brand:** cooper **Price:** VT576831 **Availability:** ✅ In Stock ## Summary > 🛞 Elevate your off-road game with unstoppable traction and rugged style! ## Quick Answers - **What is this?** Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire by cooper - **How much does it cost?** VT576831 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/553284273-cooper-discoverer-stt-pro-all-season-31x10-50r15lt-109q-tire) ## Best For - cooper enthusiasts ## Why This Product - Trusted cooper brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **All-Season Versatility:** Engineered to deliver smooth, quiet rides on highways without compromising off-road traction. - • **Stone Armor Technology:** Innovative tread channels expel stones and debris, extending tire life and performance. - • **65,000-Mile Limited Warranty:** Confidence backed by industry-leading durability and long-lasting reliability. - • **Unmatched Off-Road Dominance:** Conquer rugged terrain with deep Climber Cleats and Mud Slingers 2.0 for relentless grip. - • **Armor Tek3 Sidewall Protection:** Reinforced 10-ply construction resists punctures and abrasions on the toughest trails. ## Overview The Cooper Discoverer STT Pro 35X12.50R20LT 121Q is a premium all-season off-road tire featuring advanced Armor Tek3 sidewall technology, aggressive tread design with Climber Cleats and Mud Slingers 2.0, and Stone Armor channels for superior durability and traction. Designed for extreme off-road performance without sacrificing on-road comfort, it supports heavy loads with a 10-ply rating and comes with a 65,000-mile limited warranty, making it the ultimate choice for adventurous professionals who demand reliability and style. ## Description The Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire is the most extreme all-season, off-road tire Cooper offers to date, providing remarkable off-road performance without sacrificing on-road traction. The Discoverer STT PRO tire delivers best-in-class off-road performance, empowering the extreme off-roader to take on the toughest challenges. Patented Armor Tek3 tire technology adds strength to the tire sidewall, providing increased resistance to damage while driving over boulders and uneven, tough terrain. The Discoverer STT Pro comes with rubber formulated to combat shredding and damage from stones and off-road obstacles. The ROCK CLIMBER SIDEWALL gets max traction to help conquer even the toughest obstacles with deep ‘Climber Cleats’ and Flex Grooves built into the side of the tire that grip jagged rocks and power through thick mud. The MUD SLINGERS 2.0 are deep, wide trenches with additional notches throughout the tread combine to give you more grip to power through and help continuously clear thick mud from the tire. The EARTH DIGGERS can tackle tricky terrain with large blocks with alternating mud scoops that forcefully dig into loose dirt, sand or sticky mud. The STONE ARMOR TECHNOLOGY provides the ultimate durability with channels, ridges, and edges designed to help defend against sharp rocks and debris while expelling lodged stones. Review: Bought a set of 4 for my 2019 Nissan Pathfinder. The delivery was quick. They are exceptional. They look great on my car, and the ride is smooth without a lot of road noise coming from the tires. The 65,000 mile warranty is a comfort of knowing I have bought a quality tire. Definitely recommend Review: gomme di qualità e venditore preciso. ## Features - All-Season Off-Road Traction Tire - The most extreme all-season, off-road tire Cooper offers to date - Provides remarkable off-road performance without sacrificing on-road traction - Tread design helps to prevent stone retention - Armor Tek3 construction for added tire durability - The shoulder of the tire was designed with soft surface cleats and mud scoops - Standard Limited Warranty ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B014HH7B9E | | Automotive Fit Type | Vehicle Specific Fit | | Brand Name | Cooper | | Construction Type | Radial | | Customer Reviews | 4.6 4.6 out of 5 stars (689) | | Global Trade Identification Number | 00029142829454, 00291428294540 | | Included Components | Tire Only | | Item Diameter | 30.8 Inches | | Item Dimensions | 78.1 x 78.1 x 27.2 centimeters | | Item Type Name | Tire | | Item Weight | 20.92 kg | | Load Capacity | 1029.66 kg | | Load Index | 109 | | Manufacturer | Cooper | | Manufacturer Part Number | 170110034 | | Maximum Pressure | 50 Pound per Square Inch | | Model Number | 170110034 | | OEM Equivalent Part Number | 9023638 | | Ply | 10-Ply | | Rim Size | 15 Inches | | Seasons | Year Round | | Section Width | 10.5 Inches | | Size | 31X10.50R15LT 109Q | | Spare Tire Mounting Location | Front or Rear | | Speed Rating | Q | | Tire Aspect Ratio | 10.5 | | Tire Diameter | 31 | | Tread Depth | 20 32nds | | Tread Type | Asymmetrical | | UPC | 826825966358 291428294540 029142829454 | | Unit Count | 1 Count | | Vehicle Tire ISO Metric Size Description | 31/10.50R15 | ## Product Details - **Brand:** Cooper - **Rim size:** 15 Inches - **Section width:** 10.5 Inches - **Size:** 31X10.50R15LT 109Q - **Tyre aspect ratio:** 10.5 ## Images ![Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire - Image 1](https://m.media-amazon.com/images/I/81yAZbtaAIL.jpg) ![Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire - Image 2](https://m.media-amazon.com/images/I/81I28TchhBL.jpg) ![Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire - Image 3](https://m.media-amazon.com/images/I/81xvHD9ODOL.jpg) ![Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire - Image 4](https://m.media-amazon.com/images/I/51giAMFQoeL.jpg) ![Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire - Image 5](https://m.media-amazon.com/images/I/81wPJoHoKWL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Do these have white letters?** A: This is going to be an all black sidewall. Thanks! **Q: are these 10 ply tires?** A: Listing states 10 ply **Q: How badly will my MPGs drop with these tires?** A: I lost almost 20%. That being said... They are awesome tires. **Q: Will these fit on a 15x8 wheel?** A: Hello, These will not fit a 15x8 wheel. This tire fits a15x8.5" to 15x11" wheel. Thanks, ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by T***A on 18 December 2025* Bought a set of 4 for my 2019 Nissan Pathfinder. The delivery was quick. They are exceptional. They look great on my car, and the ride is smooth without a lot of road noise coming from the tires. The 65,000 mile warranty is a comfort of knowing I have bought a quality tire. Definitely recommend ### ⭐⭐⭐⭐⭐ Review *by L***I on 16 April 2019* gomme di qualità e venditore preciso. ### ⭐⭐⭐⭐⭐ Review *by B***R on 3 August 2018* Needed new tyres for my LR Defender110...bought some other ones (no names!) from another company! They arrived WRONG SIZE..& it took 3 weeks for them to admit & collect & return payment. Amazon does give you "peace of mind" in that direction - and the tyres are really excellent! A good mix between off-road and road use...shame they are NOT winter-rated! Two years on...(2020) tyres are all good, hard cornering on a wet road they'll slide - but predictably! Good in winter as well - though not EU winter-rated! Wear after 35000Km is very acceptable. Use off road is excellent, fantastic grip (shattered half-shaft actually!). Recommended buy especially if you do any off road/mud travelling ## Frequently Bought Together - Cooper Discoverer STT Pro All-Season 35X12.50R20LT 121Q Tire - Mopar Engine Oil Filter - 5083285AA - Roundrule Xtra All Steel Heavy Duty Premium Trailer Radial Tire-ST235/80R16 235/80/16 235/80-16 129/125M Load Range G LRG 14-Ply BSW Black Side Wall --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/553284273-cooper-discoverer-stt-pro-all-season-31x10-50r15lt-109q-tire](https://www.desertcart.vu/products/553284273-cooper-discoverer-stt-pro-all-season-31x10-50r15lt-109q-tire) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-09*