---
product_id: 18918503
title: "Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire"
brand: "cooper"
price: "1344815CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Cooper"
url: https://www.desertcart.sn/products/18918503-discoverer-stt-pro-all-season-31x10-50r15lt-109q-tire
store_origin: SN
region: Senegal
---

# 31-inch aggressive tread diameter All-season mud & stone shedding Armor Tek3 reinforced sidewall Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire

**Brand:** cooper
**Price:** 1344815CFA
**Availability:** ✅ In Stock

## Summary

> 🛞 Elevate your off-road game with unstoppable traction and rock-solid durability!

## Quick Answers

- **What is this?** Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire by cooper
- **How much does it cost?** 1344815CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/18918503-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

- • **Trail-Ready Comfort:** Minimal road noise and smooth ride even at highway speeds up to 70 mph
- • **Armor Tek3 Durability:** Sidewall protection engineered to resist punctures and abrasions on the toughest terrain
- • **All-Season Versatility:** Year-round traction that balances extreme off-road grip with smooth on-road handling
- • **Heavy-Duty Load Capacity:** Supports up to 2,270 lbs with a robust 10-ply radial construction for rugged reliability
- • **Unmatched Off-Road Dominance:** Conquer rocky trails & mud with deep Climber Cleats and Mud Slingers 2.0 trenches

## Overview

The Cooper Discoverer STT Pro 31X10.50R15LT 109Q is a premium all-season off-road tire featuring a 31-inch diameter and 10-ply radial construction. Engineered with patented Armor Tek3 sidewall technology and advanced tread designs like Climber Cleats and Mud Slingers 2.0, it delivers exceptional traction on mud, rocks, and dirt while maintaining smooth, quiet highway performance. Rated for heavy loads up to 2,270 lbs and speeds up to 70 mph, this tire is the ultimate upgrade for serious off-road enthusiasts seeking durability and year-round versatility.

## 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: and they where pretty smooth. Offroad traction on trails has been great ... - Arrived quickly. Tried them out with NO balancing on them just out of curiosity, and they where pretty smooth. Offroad traction on trails has been great and these have taken the mildly modded Samurai to yet another level of improved capability. Previous tires were 10+ year old BFG AT with only 30% or so tread left and to be fair, I got them 2nd hand and didn't get to experience them new. So, probably any half way decent tire would have been noticeably better than old dried out tires, not matter how good they may have been when new. That being said, the Samurai nearly doubled it's abilities with it's 3" lift and move up to 31's... then adding a rear locker and proper diff gearing netted almost as big a gain again. Finally, adding these tires was not quite as big a jump as the other mods... but, again, a VERY noticeable gain in offroad traction and climbing ability. Long, 100% grade climbs that used to take effort and both hands and were a bit of a challenge, suddenly became casual, one hand on the wheel affairs. No chance to try them in in rain or snow yet.... but trail and rocky stuff has been great. Watch the "cooper puncture test" video online. As for noise.... my 4x4 is NOT my daily driver... so "tire noise" is more like TIRE MUSIC to me. But they are not particularly loud. Yes, you can hear them and they are more noise than your street car.... but, by FAR are NOT that noisy for mud tires. Prices on these fluctuate FAR more than BFG KM2 (my other choice).... but the BFG's would NEVER drop as low priced as these have from time to time.... When they dropped to only about $25 more than the cheapest tires out there, it was a no brainer! VERY pleased with them! [O.|||||.O]
Review: Great offroad tire with minimal NVH - Bought these exact tires from desertcart about 2 years ago in november 2017 for my 1992 Toyota 4Runner. They are just about to need replacing after approx 20k miles. As long as you rotate these tires a minimum of once every 5k miles they roll very nicely with minimal road noise even at speeds of 70mph. If you have to go faster than 70mph these are probably not the tires for you. Have gone on mild trails with these tires as well as in fairly deep soft sand with no problems. They look amazing on the truck as well. I originally had Mickey Thompson Baja MTZ Radial tires on the same rims in the same size and I would not get those again after trying these cooper stt pro's. They are a much more advanced tire and still offer the offroad performance that I need.

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B014HH7B9E |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #557,442 in Automotive ( See Top 100 in Automotive ) #1,013 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.4 out of 5 stars 66 Reviews |
| Global Trade Identification Number | 00029142829454, 00291428294540 |
| Included Components | Tire Only |
| Item Diameter | 30.75 inches |
| Item Dimensions | 30.75 x 30.75 x 10.7 inches |
| Item Highlight | Light Truck Mud Terrain All Season Traction 109Q Rated C (6 Ply) Radial Construction Raised White Letters Tire |
| Item Type Name | Tire |
| Item Weight | 46.1 pounds |
| Load Capacity | 2270 pounds |
| Load Index | 109 |
| Load Range | C |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170110034 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 50 psi |
| Model Number | 170110034 |
| OEM Equivalent Part Number | COOP-90000023638 |
| 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 inches |
| Tread Depth | 20 thirty_seconds_inches |
| Tread Type | Non-Directional |
| UPC | 826825966358 291428294540 029142829454 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 31/10.50R15 |

## Product Details

- **Brand:** Cooper
- **Load Capacity:** 2270 pounds
- **Load Index:** 109
- **Rim Size:** 15 inches
- **Section Width:** 10.5 inches
- **Size:** 31X10.50R15LT 109Q
- **Speed Rating:** Q
- **Tire Aspect Ratio:** 10.5
- **Tread Depth:** 20 thirty_seconds_inches
- **Tread Type:** Non-Directional

## Images

![Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire - Image 1](https://m.media-amazon.com/images/I/81yAZbtaAIL.jpg)

## 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

### ⭐⭐⭐⭐⭐ and they where pretty smooth. Offroad traction on trails has been great ...
*by A***R on September 16, 2018*

Arrived quickly. Tried them out with NO balancing on them just out of curiosity, and they where pretty smooth. Offroad traction on trails has been great and these have taken the mildly modded Samurai to yet another level of improved capability. Previous tires were 10+ year old BFG AT with only 30% or so tread left and to be fair, I got them 2nd hand and didn't get to experience them new. So, probably any half way decent tire would have been noticeably better than old dried out tires, not matter how good they may have been when new. That being said, the Samurai nearly doubled it's abilities with it's 3" lift and move up to 31's... then adding a rear locker and proper diff gearing netted almost as big a gain again. Finally, adding these tires was not quite as big a jump as the other mods... but, again, a VERY noticeable gain in offroad traction and climbing ability. Long, 100% grade climbs that used to take effort and both hands and were a bit of a challenge, suddenly became casual, one hand on the wheel affairs. No chance to try them in in rain or snow yet.... but trail and rocky stuff has been great. Watch the "cooper puncture test" video online. As for noise.... my 4x4 is NOT my daily driver... so "tire noise" is more like TIRE MUSIC to me. But they are not particularly loud. Yes, you can hear them and they are more noise than your street car.... but, by FAR are NOT that noisy for mud tires. Prices on these fluctuate FAR more than BFG KM2 (my other choice).... but the BFG's would NEVER drop as low priced as these have from time to time.... When they dropped to only about $25 more than the cheapest tires out there, it was a no brainer! VERY pleased with them! [O.|||||.O]

### ⭐⭐⭐⭐⭐ Great offroad tire with minimal NVH
*by R***L on July 14, 2017*

Bought these exact tires from amazon about 2 years ago in november 2017 for my 1992 Toyota 4Runner. They are just about to need replacing after approx 20k miles. As long as you rotate these tires a minimum of once every 5k miles they roll very nicely with minimal road noise even at speeds of 70mph. If you have to go faster than 70mph these are probably not the tires for you. Have gone on mild trails with these tires as well as in fairly deep soft sand with no problems. They look amazing on the truck as well. I originally had Mickey Thompson Baja MTZ Radial tires on the same rims in the same size and I would not get those again after trying these cooper stt pro's. They are a much more advanced tire and still offer the offroad performance that I need.

### ⭐⭐⭐⭐⭐ Love them! Great looking tires! Rides really nice
*by M***N on October 22, 2025*

Looks great in the jeep wanted to wait to review until we rode on them for awhile but overall really nice tires

## Frequently Bought Together

- Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire
- MIKKUPPA 1/2-20 Lug Nuts - Replacement for 1987-2018 Jeep Wrangler JK, 2002-2012 Jeep Liberty, 1993-2010 Jeep Grand Cherokee Aftermarket Wheel - 20pcs Black Closed End Solid Lug Nuts
- Rough Country Black Steel 15x8 | 5x4.5 | -19mm-RC158545 Wheel with Painted and Center Cap is not Included. (15 x 8. inches /5 x 4 inches, -19 inches Offset)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-09-10*