---
product_id: 20952476
title: "Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire"
brand: "cooper"
price: "VT420988"
currency: VUV
in_stock: true
reviews_count: 11
category: "Cooper"
url: https://www.desertcart.vu/products/20952476-cooper-discoverer-stt-pro-all-season-37x13-50r17lt-121q-tire
store_origin: VU
region: Vanuatu
---

# 37-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 37X13.50R17LT 121Q Tire

**Brand:** cooper
**Price:** VT420988
**Availability:** ✅ In Stock

## Summary

> 🛞 Rule Every Road & Trail — Tire Tech That Means Business

## Quick Answers

- **What is this?** Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire by cooper
- **How much does it cost?** VT420988 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/20952476-cooper-discoverer-stt-pro-all-season-37x13-50r17lt-121q-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 exceptional traction on wet, dry, and muddy surfaces without compromise.
- • **Stone Armor Technology:** Innovative tread channels expel stones and debris, extending tire life and performance.
- • **Heavy-Duty Load Capacity:** Supports up to 3,195 lbs with a robust 65 PSI max pressure for rugged utility and reliability.
- • **Unmatched Off-Road Dominance:** Conquer the wildest terrains with deep Climber Cleats and Mud Slingers 2.0 for relentless grip.
- • **Armor Tek3 Sidewall Protection:** Reinforced sidewalls resist damage from rocks and rough trails, keeping you unstoppable.

## Overview

The Cooper Discoverer STT Pro 37X13.50R17LT 121Q is a premium all-season off-road tire designed for extreme performance. Featuring Armor Tek3 sidewall technology, advanced tread patterns like Climber Cleats and Mud Slingers 2.0, and Stone Armor channels, it delivers superior traction and durability across diverse terrains. With a 37-inch diameter and a heavy-duty load capacity of 3,195 lbs, this tire balances rugged off-road capability with dependable on-road handling, making it the ultimate choice for adventurous professionals who demand both toughness and versatility.

## Description

The Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q 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: Amazing. - Quiet and rugged. I was super leiry of buying tires on line. These tires are amazing. Very little if any road noise. Went from 265 to 315. Felt very little loss of power. The difference on the trails were significant. These tires bite and release the mud better than I could have imagined. Absolutely love the look, agility, and off road capabilities. Would highly recommend. I have tried uploading a picture but it won't let me. Anywho. They are amazing
Review: This is my second set of these tires - My first set of the Discovery STT Pro lasted approximately 42,000 miles and still had enough tread to go another year. I decided to swap out my old tires because they have been on my Jeep for almost 10 years and due to an alignment issue there was some cupping. The new tires are amazing. There is very little road noise and the Jeep handles very well. I think as these tires wear out the road noise will increase (I believe this has been typical of other tires I've had on my previous Jeep). Overall I am very happy with the previous tread life of these tires and impressed with their on-road performance.

## 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 | B017XTYPP6 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #533,725 in Automotive ( See Top 100 in Automotive ) #903 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.7 out of 5 stars 393 Reviews |
| Global Trade Identification Number | 00029142829843, 00291428298432 |
| Included Components | Tire Only |
| Item Diameter | 36.77 Inches |
| Item Dimensions | 36.77 x 36.77 x 13.3 inches |
| Item Type Name | Tire |
| Item Weight | 8.6 Kilograms |
| Load Capacity | 3195 Pounds |
| Load Index | 121.0 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170137006 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 65 Pound per Square Inch |
| Model Number | 170137006 |
| OEM Equivalent Part Number | 170137006 |
| Ply | 10-Ply |
| Rim Size | 17 Inches |
| Seasons | Year Round |
| Section Width | 13.5 Inches |
| Size | 37X13.50R17LT 121Q |
| Spare Tire Mounting Location | Front or Rear |
| Speed Rating | Q |
| Tire Aspect Ratio | 13.5 |
| Tire Diameter | 37 Inches |
| Tread Depth | 22 32nds |
| Tread Type | Non-Directional |
| UPC | 029142829843 291428298432 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 305/13.50R17 |

## Product Details

- **Brand:** Cooper
- **Load Capacity:** 3195 Pounds
- **Load Index:** 121.0
- **Rim Size:** 17 Inches
- **Section Width:** 13.5 Inches
- **Size:** 37X13.50R17LT 121Q
- **Speed Rating:** Q
- **Tire Aspect Ratio:** 13.5
- **Tread Depth:** 22 32nds
- **Tread Type:** Non-Directional

## Images

![Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire - Image 1](https://m.media-amazon.com/images/I/81yAZbtaAIL.jpg)
![Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire - Image 2](https://m.media-amazon.com/images/I/81I28TchhBL.jpg)
![Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire - Image 3](https://m.media-amazon.com/images/I/81xvHD9ODOL.jpg)
![Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire - Image 4](https://m.media-amazon.com/images/I/91YhnE1-VBL.jpg)
![Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire - Image 5](https://m.media-amazon.com/images/I/51giAMFQoeL.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

### ⭐⭐⭐⭐⭐ Amazing.
*by G***K on January 25, 2025*

Quiet and rugged. I was super leiry of buying tires on line. These tires are amazing. Very little if any road noise. Went from 265 to 315. Felt very little loss of power. The difference on the trails were significant. These tires bite and release the mud better than I could have imagined. Absolutely love the look, agility, and off road capabilities. Would highly recommend. I have tried uploading a picture but it won't let me. Anywho. They are amazing

### ⭐⭐⭐⭐⭐ This is my second set of these tires
*by J***N on October 12, 2023*

My first set of the Discovery STT Pro lasted approximately 42,000 miles and still had enough tread to go another year. I decided to swap out my old tires because they have been on my Jeep for almost 10 years and due to an alignment issue there was some cupping. The new tires are amazing. There is very little road noise and the Jeep handles very well. I think as these tires wear out the road noise will increase (I believe this has been typical of other tires I've had on my previous Jeep). Overall I am very happy with the previous tread life of these tires and impressed with their on-road performance.

### ⭐⭐⭐⭐⭐ Great price for 37's
*by S***Y on July 2, 2025*

I've been running the Cooper Discoverer Pro STT's for a while now and needed to replace 2 of my tires. Amazon had the best price on 37x12.50R17's I could find, plus I didn't have to pay a bunch for shipping. These tires are great! Not a ton of road noise and they hold up great while off roading.

## Frequently Bought Together

- Cooper Discoverer STT Pro All-Season 37X13.50R17LT 121Q Tire
- GAsupply Black Lug Nuts, 1/2-20 Closed End Bulge Acorn Lug Nuts 3/4 inch 19mm Hex 1.38 inch Tall 60 Degree Conical Seat
- Rough Country Daytona Steel Wheel Black (16x8 / 5x5.5 / 5x139.7) -RC51-6885 Painted and Center Cap is Not Included (16 x 8. inches /10 x 16 inches, 0 inches Offset)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*