Cooper

Cooper Discoverer Rugged Trek Lt - 37X12.50R20/E 126Q Tire

|5 ratings
Item # 984136519
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Smart summary

Generated by AI
  • Precise Specifications: This Cooper Discoverer Rugged Trek Lt tire features precise dimensions of 37X12.50R20, a robust load range E, a 126 load index, and a Q speed rating, providing detailed specifications for demanding applications.
  • Distinctive Appearance: Designed with an aggressive tread and a Rough Terrain pattern, this tire offers a tough aesthetic combined with two distinct sidewall designs for versatile vehicle customization.
  • Robust Off-road Grip: Earth Diggers Technology incorporates large shoulder scoops and lugs, enabling the tire to achieve deeper grip and solid traction in challenging conditions like mud, sand, or dirt.
  • Advanced Handling Control: Stable Trac Technology utilizes omni-directional, micro gauge siping, specifically engineered to enhance overall traction and promote greater stability and control on various road and rough surfaces.
  • Adaptive On/Off-road: Delivering excellent on-road traction and comfort, this tire is also equipped for severe weather conditions and is ideally suited for a wide range of Trucks and SUVs.
Cooper Discoverer Rugged Trek Lt - 37X12.50R20/E 126Q Tire
Cooper Discoverer Rugged Trek Lt - 37X12.50R20/E 126Q Tire
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About this item

Product details

Before purchasing tires, make sure to use our Tire Finder to select the right fit for your vehicle.

Aggressive tread design offers a tough look. Excellent on-road traction and comfort. Two sidewall designs for versatile style.

Aggressive looks
The Rough Terrain™ tread pattern offers tough style and extra grip when you venture off the highway.

Solid traction
Earth Diggers™ Technology digs deeper into mud, sand or dirt with large shoulder scoops and lugs.

Stability and control
Stable Trac™ Technology with omni-directional, micro gauge siping enhances traction on roads and rough surfaces.

45-Day Test Drive
Need time to make sure these tires are the right ones for your vehicle? Cooper Tires offers a 45-Day Test Drive to test out your new tires.

info:
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Specifications

Product Details
Tire Size:37/12.5R20/E
Service Description:126Q
Sidewall:Black Sidewall
Material # or MSPN:170-214-007
Rim Width (min. to max.):8.5-11.0
Section Width:12.4
Overall Diameter:36.5
Tread Depth (32nds):19
RPM:567
Max Load (lbs.):3750 lbs @ 65 psi
UTQG Rating
Treadwear:0
Traction:
Temperature:

Warnings and disclaimers

Disclaimer

The below installation services are available at $20 per tire:
  • Plus Members save ½ off on a set of 4
  • Tire Mounting
  • Free Lifetime Rotation & Balance
  • Free Lifetime Flat Repair
  • 5 years Road Hazard Protection (Excluding New York State)
  • 4 years of 24-hour Roadside Assistance

Member ratings & reviews

4.8 out of 5 stars
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Showing 1-2 of 2 reviews

Feb 14, 2026
DANIEL
5 out of 5 stars review

Great Road Tires for an Aggressive Tread.

These tires are Great on the road. I have to agree with everything William said in his review, about these tires. I just got them installed and drove home on the highway %26 bumpy side roads. A very big change in the driveability / ride on my wife's Jeep Wrangler LJ. They are quiet, I didn't think an agressive tire could be so quiet. A verry slight hum at highway speeds. Almost silent around town. Our previous tires were very bouncy on any little bump, these hold the road, "what bump?". A very stable ride. They hold the road great at highway speeds %26 everyday around town driving. 65,000 mile treadwear, can't be beat. I have not gone off road yet but imagine they'll be great.

Helpful?5WD4IE21CZZD13559466971
Nov 21, 2025
William
5 out of 5 stars review

Don't think twice definitely get these!

I would have never believed a review that would change the ride of my Jeep Wrangler so immensely, I went from Nitto grapplers to these they look just as aggressive, but the ride the quietness has changed so much! They do not bounce all over the road with any little bump. They are much more stable at higher speeds much more quiet on the road and my wife who is very picky about riding in different vehicles, including my Corvette said that the jeep is much more enjoyable to ride them.

Helpful?5WD4IE21CZZD13559466971

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