---
product_id: 46887766
title: "Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire"
brand: "cooper"
price: "19524.85 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Cooper"
url: https://www.desertcart.tn/products/46887766-cooper-discoverer-stt-pro-all-season-38x13-50r20lt-123q-tire
store_origin: TN
region: Tunisia
---

# 38-inch diameter for commanding presence All-season tread for year-round traction Armor Tek3 sidewall tech for ultimate durability Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire

**Brand:** cooper
**Price:** 19524.85 DT
**Availability:** ✅ In Stock

## Summary

> 🛞 Rule Every Road & Trail with Unstoppable Grip

## Quick Answers

- **What is this?** Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire by cooper
- **How much does it cost?** 19524.85 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/46887766-cooper-discoverer-stt-pro-all-season-38x13-50r20lt-123q-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

- • **Built to Endure:** Armor Tek3 construction resists punctures and sidewall damage on the toughest terrain.
- • **All-Season Confidence:** Engineered for reliable traction rain or shine, so your adventure never stops.
- • **Commanding Size & Style:** Massive 38x13.5R20 size delivers bold looks and superior road presence.
- • **Heavy-Duty Load Capacity:** Supports up to 3,415 lbs with an 8-ply rating—ready for your toughest hauls.
- • **Unmatched Off-Road Dominance:** Conquer rocks, mud, and trails with aggressive Rock Climber sidewalls and Mud Slingers 2.0 tread design.

## Overview

The Cooper Discoverer STT Pro 38X13.50R20LT is a premium all-season off-road tire featuring Armor Tek3 sidewall technology for enhanced durability, aggressive tread patterns like Rock Climber and Mud Slingers 2.0 for superior traction, and an 8-ply radial construction supporting heavy loads up to 3,415 lbs. Designed for extreme off-road performance without compromising on-road handling, it’s the ultimate tire for professionals who demand rugged reliability and year-round versatility.

## Description

The Cooper Discoverer STT Pro All-Season 38X13.50R20LT D 123Q 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: 3 Years and 50k Miles Later! - 3 Years and 50k Miles Later! Cause lets be honest that is what you want to know. I purchased a set of 4 - 295/70R18 On March 1st 2018 and they were installed March 5th the same year. Pros - *Amazing off road tires, especially if you air them down. They clean out better then tires 2x their price. Mud, Snow, Sand they have held up amazingly. * Road noise very limited the first couple years I have had less aggressive tires make way more noise when going down the highway. * Wear and Tare they have held up great. 50k miles 3 years and still have a good amount of tread on them. They actually shocked me usually 2 years is about all I get out of a really aggressive MT tire. These blew buy this expectation laughing. I actually just ordered a new set cause these are in that butter zone where I can make some cash back on resell. * Mount and Balancing. They mounted and balanced pretty easily for an aggressive MT tire. The balance line on the tire was pretty true and the Tech did not have to muck with them to much. Unlike some other MT's I have had that the Tech almost quit on me trying to get them balanced. Cons - * Road Noise 2.5 years - when they cut through about half the tread that noise starts to shine through the stippling in the tire that helps reduce this noise is pretty much gone at about half tire life and well yeah they start to howl. Now into year 3 and yeah they are border line obnoxious. Some people don't care about this howl, I tend to only cause I haul a boat and put on a lot of highway miles. However 2.5 years before they started howling is a .5 year longer then I thought the tires would last in whole. * Packed Snow and Ice - I am in ND land of the frozen nothingness. While Mud, Fresh Snow, and Sand mean nothing to these tires the lack of surface area has them singing a different tune. Packed Snow and Ice is a bit of a challenge for these tires. If you live in the north it is something you should note. However you should also know that most MT tires that have super aggressive tread suffer from this as it is a lack of surface area issue. * Rocks - again this is a con for all aggressive tires but these seem to be especially good at picking up rocks and stones and holding on to them for dear life. All in all I love these tires and like I said just ordered a new set. If you like a good looking tire that will hold up on the road and not leave you stranded off road. These are amazing tires.
Review: Wet traction, hard braking - Quality, excellent on wet roads. All I will ever buy from now one

## 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 | B06XK4NR2Q |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #69,474 in Automotive ( See Top 100 in Automotive ) #70 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.6 out of 5 stars 1,132 Reviews |
| Global Trade Identification Number | 00029142871422 |
| Included Components | Tire Only |
| Item Diameter | 38.19 inches |
| Item Dimensions | 38.19 x 38.19 x 13.6 inches |
| Item Type Name | Tire |
| Item Weight | 84 pounds |
| Load Capacity | 3415 pounds |
| Load Index | 123 |
| Load Range | D |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170143006 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Model Number | 170143006 |
| Number of Packs | 1 |
| OEM Equivalent Part Number | COOP-90000027704 |
| Ply | 8-Ply |
| Rim Size | 20 inches |
| Seasons | Year Round |
| Section Width | 13.5 inches |
| Size | 38X13.50R20LT 123Q |
| Spare Tire Mounting Location | Front or Rear |
| Speed Rating | Q |
| Tire Aspect Ratio | 13.5 |
| Tire Diameter | 38 inches |
| Tread Depth | 21 thirty_seconds_inches |
| Tread Type | Non-Directional |
| UPC | 029142871422 |
| Unit Count | 1 Count |
| Vehicle Tire ISO Metric Size Description | 38/13.50R20 |

## Product Details

- **Brand:** Cooper
- **Load Capacity:** 3415 pounds
- **Load Index:** 123
- **Rim Size:** 20 inches
- **Section Width:** 13.5 inches
- **Size:** 38X13.50R20LT 123Q
- **Speed Rating:** Q
- **Tire Aspect Ratio:** 13.5
- **Tread Depth:** 21 thirty_seconds_inches
- **Tread Type:** Non-Directional

## Images

![Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire - Image 1](https://m.media-amazon.com/images/I/81yAZbtaAIL.jpg)
![Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire - Image 2](https://m.media-amazon.com/images/I/81I28TchhBL.jpg)
![Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire - Image 3](https://m.media-amazon.com/images/I/81xvHD9ODOL.jpg)
![Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire - Image 4](https://m.media-amazon.com/images/I/91YhnE1-VBL.jpg)
![Cooper Discoverer STT Pro All-Season 38X13.50R20LT 123Q Tire - Image 5](https://m.media-amazon.com/images/I/51giAMFQoeL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 3 Years and 50k Miles Later!
*by T***Y on May 18, 2021*

3 Years and 50k Miles Later! Cause lets be honest that is what you want to know. I purchased a set of 4 - 295/70R18 On March 1st 2018 and they were installed March 5th the same year. Pros - *Amazing off road tires, especially if you air them down. They clean out better then tires 2x their price. Mud, Snow, Sand they have held up amazingly. * Road noise very limited the first couple years I have had less aggressive tires make way more noise when going down the highway. * Wear and Tare they have held up great. 50k miles 3 years and still have a good amount of tread on them. They actually shocked me usually 2 years is about all I get out of a really aggressive MT tire. These blew buy this expectation laughing. I actually just ordered a new set cause these are in that butter zone where I can make some cash back on resell. * Mount and Balancing. They mounted and balanced pretty easily for an aggressive MT tire. The balance line on the tire was pretty true and the Tech did not have to muck with them to much. Unlike some other MT's I have had that the Tech almost quit on me trying to get them balanced. Cons - * Road Noise 2.5 years - when they cut through about half the tread that noise starts to shine through the stippling in the tire that helps reduce this noise is pretty much gone at about half tire life and well yeah they start to howl. Now into year 3 and yeah they are border line obnoxious. Some people don't care about this howl, I tend to only cause I haul a boat and put on a lot of highway miles. However 2.5 years before they started howling is a .5 year longer then I thought the tires would last in whole. * Packed Snow and Ice - I am in ND land of the frozen nothingness. While Mud, Fresh Snow, and Sand mean nothing to these tires the lack of surface area has them singing a different tune. Packed Snow and Ice is a bit of a challenge for these tires. If you live in the north it is something you should note. However you should also know that most MT tires that have super aggressive tread suffer from this as it is a lack of surface area issue. * Rocks - again this is a con for all aggressive tires but these seem to be especially good at picking up rocks and stones and holding on to them for dear life. All in all I love these tires and like I said just ordered a new set. If you like a good looking tire that will hold up on the road and not leave you stranded off road. These are amazing tires.

### ⭐⭐⭐⭐⭐ Wet traction, hard braking
*by R***D on October 2, 2026*

Quality, excellent on wet roads. All I will ever buy from now one

### ⭐⭐⭐⭐⭐ Love them so far. Hoping they last.
*by M***N on May 25, 2017*

Just bought these, mounted them on some pro comp wheels, and so far they're great. Ive been playing around with tire pressure to get even wear because I want them to last as long as possible. Max rating is 35, but to get more even wear, I'm sitting at 28-30 PSI. A few things I've noticed that some people might be interested in before buying, the tread is softer than I expected but I have a lighter vehicle so I hope they still last, they make a little bit of noise on the road but its not bad at all, they're definitely not your average all-terrain tire, the spacing between the tread is closer to a mud terrain but the center tread pattern looks a little more normal, handling for pavement isn't as good as my old BFGs but thats not what I got them for, and I've already had plenty of compliments. I haven't done any serious off-roading with them yet, but I do plan to, and then I will update this review. I have driven them a little in the sand and on a few dirt roads, they seem to be extremely grippy. Update: The wheels that I put them on were 15x8, which caused the tires to bulge a little and could lead to pre-mature wear in the center of the tread. Luckily I spotted this early, ordered some 15x10s and threw those on (8.5-11 recommended). The tires look much better on those and are now touching evenly across the tread. I'm also able to air them appropriately to around 34 PSI. I did take them out on the trail also, and they are awesome! The trails were a mix of sand and mud, and these things were un-stoppable. I purposefully stopped half way up a sand dune to see if I'd get stuck, and they just pulled me right up no problem.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-27*