---
product_id: 234084362
title: "Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire"
brand: "cooper"
price: "$1853.33"
currency: USD
in_stock: true
reviews_count: 10
category: "Cooper"
url: https://www.desertcart.us/products/234084362-cooper-discoverer-s-t-maxx-all-season-lt285-65r18-125
store_origin: US
region: United States of America
---

# 10-ply Armor Tek3 durability Stone ejector ribs prevent retention All-season, on/off-road traction Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire

**Brand:** cooper
**Price:** $1853.33
**Availability:** ✅ In Stock

## Summary

> 🛞 Conquer every road, every season — toughness that keeps you moving forward.

## Quick Answers

- **What is this?** Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire by cooper
- **How much does it cost?** $1853.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/234084362-cooper-discoverer-s-t-maxx-all-season-lt285-65r18-125)

## 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

- • **Stone-Free Drive:** Innovative stone ejector ribs actively prevent debris retention, reducing wear and tear on every journey.
- • **Quiet, Smooth Ride:** Optimized tread pattern minimizes road noise, ensuring a comfortable drive even under heavy loads.
- • **All-Season Confidence:** Engineered for year-round performance with a hybrid 4-5 rib tread design that balances highway stability and off-road grip.
- • **Cut & Chip Resistant Compound:** Proprietary tread compound resists harsh terrain damage, extending tire life and reliability.
- • **Maxx Toughness, Maxx Traction:** 10-ply Armor Tek3 construction delivers unmatched sidewall and tread strength for commercial-grade durability.

## Overview

The Cooper Discoverer S/T Maxx LT285/65R18 is a 10-ply, all-season commercial traction tire designed for light trucks and high-torque vehicles. Featuring Armor Tek3 carcass construction and a cut-and-chip resistant tread compound, it offers exceptional durability and stability on both rugged off-road terrain and highways. Stone ejector ribs prevent debris retention, while the hybrid tread design ensures low noise and long-lasting performance, making it a top choice for professionals demanding reliability and toughness year-round.

## Description

When the going gets tough, you need a tire equipped to handle rough terrain. The Cooper Discoverer S/T Maxx All-Season LT285/65R18 125Q Tire provides, long, even wear when you’re on the highway and excellent performance during all seasons, on or off road. The Cooper Discoverer S/T Maxx features Cooper’s proven and reliable 3-ply Armor-Tek3 carcass construction combined with a proprietary cut and chip resistant tread compound. With that combination along with its modern hybrid 4-5 rib tread design and unique tread features, the S/T Maxx is destined to be a commercial grade traction tire that will perform in the toughest terrains while retaining remarkable on-road traction, stability and low noise characteristics. The Discoverer S/T Maxx is designed for commercial light truck and high-powered torque vehicles. Cooper's proven, class-leading 3-ply Armor-Tek3 construction contributes to the durability of the S/T Maxx by adding strength to the sidewall and tread area. A unique angled ply construction absorbs and helps dissipate tire impact forces that can damage a tire in harsh off-road conditions. Stone ejector ribs help discharge debris and resist stone retention. The Cooper Discoverer S/T Maxx is Maxx Toughness, Maxx Traction... No Compromises!

Review: Great tire - Have these tires on my 2020 3500 Denali dually, great ride quality and very minimal road noise. Have around 55,000 miles (mostly towing a 40' flatbed gooseneck) on them now and they are about 30% tread. Will be buying the same tires again!
Review: great performance tire - great tire - good value long life-look great - delivered on time

## Features

- All-Season Commercial Traction Tire
- Designed for tough terrain, including rocks and gravel, with on-road stability and performance
- Tread design helps to prevent stone retention
- Armor Tek3 construction for added tire durability
- Cut and chip resistant tread compound/composition

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0792LLGG7 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #205,797 in Automotive ( See Top 100 in Automotive ) #201 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 263 Reviews |
| Included Components | Tire Only |
| Item Diameter | 32.8 Inches |
| Item Dimensions | 32.8 x 32.8 x 11.8 inches |
| Item Type Name | Tire |
| Item Weight | 62.12 Pounds |
| Load Capacity | 3640 Pounds |
| Load Index | 125.0 |
| Manufacturer | Cooper Tire & Rubber Co. |
| Manufacturer Part Number | 170073004 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 80 Pound per Square Inch |
| Model Number | 170073004 |
| Ply | 10-Ply |
| Rim Size | 18 Inches |
| Rim Width | 8.5 Inches |
| Seasons | Year Round |
| Section Width | 285 Millimeters |
| Size | LT285/65R18 125/122Q |
| Speed Rating | Q |
| Tire Aspect Ratio | 65.0 |
| Tire Diameter | 32.80 inches |
| Tread Depth | 19 32nds |
| Tread Type | Symmetrical |
| UPC | 291428022730 781787875707 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 285/65R18 |

## Product Details

- **Brand:** Cooper
- **Load Capacity:** 3640 Pounds
- **Load Index:** 125.0
- **Rim Size:** 18 Inches
- **Section Width:** 285 Millimeters
- **Size:** LT285/65R18 125/122Q
- **Speed Rating:** Q
- **Tire Aspect Ratio:** 65.0
- **Tread Depth:** 19 32nds
- **Tread Type:** Symmetrical

## Images

![Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire - Image 1](https://m.media-amazon.com/images/I/61sghwFM17L.jpg)
![Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire - Image 2](https://m.media-amazon.com/images/I/812jwyQoewL.jpg)
![Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire - Image 3](https://m.media-amazon.com/images/I/81kkhUwsgYL.jpg)
![Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire - Image 4](https://m.media-amazon.com/images/I/91Sn4UJO6LL.jpg)
![Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire - Image 5](https://m.media-amazon.com/images/I/61QbiECy1sL.jpg)

## Available Options

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

## Questions & Answers

**Q: are these E rated 10 ply tires?**
A: Cooper Discoverer S/T MAXX Radial Tire - 255/85R16 123Q - B00MXNLQEG. The load range is E (10 Ply). 
If you have any additional questions, please feel free contact to us.
Thank you for choosing Wheels Depot

**Q: La llanta viene con todo y ring ho solo es la llanta**
A: Hi! This listing is for the tire only. The rim is not included. We hope that helps!

**Q: What is the load range.  The web site for discover tire says it is a range E**
A: Yes, they are a load range E tire.

**Q: Is the price for the set?**
A: The prices are for a single tire. You will find different prices as different third-party sellers in Amazon get them from different distributors and they have different tiers in pricing from manufacture or distributor. Thus the price range difference. Hope the information helps you make a better decision. We are always here to help, give us a call 502GETTIRE or message us. we are more than glad to work with your budget and need.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tire
*by A***N on May 25, 2025*

Have these tires on my 2020 3500 Denali dually, great ride quality and very minimal road noise. Have around 55,000 miles (mostly towing a 40' flatbed gooseneck) on them now and they are about 30% tread. Will be buying the same tires again!

### ⭐⭐⭐⭐⭐ great performance tire
*by A***R on June 6, 2025*

great tire - good value long life-look great - delivered on time

### ⭐⭐⭐⭐⭐ Good buy
*by I***R on December 24, 2025*

These look great on my truck and no road noise. I have already used them in light snow (6") and they did well.

## Frequently Bought Together

- Cooper Discoverer S/T Maxx All-Season LT285/65R18 125/122Q Tire
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- Cooper Discoverer STT Pro All-Season 31X10.50R15LT 109Q Tire

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-18*