My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Cooper 170143006 Discoverer STT Pro Mud-Terrain Tire 38X13.50R20 123Q

Manufacturer

Part Number

170143006
Sale Price

$584.99

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Cooper Discoverer STT Pro is an aggressive mud-terrain tire engineered for serious off-road performance while maintaining on-road capability. Designed for light trucks and SUVs, this tire delivers exceptional traction in mud, dirt, rock, and challenging terrain.

Key Features:

  • Aggressive tread design with large, staggered shoulder blocks for maximum traction in mud and loose terrain
  • Armor-Tek3 construction with 3-ply sidewall technology for superior puncture and impact resistance
  • Silica-based compound maintains flexibility across temperature ranges for year-round performance
  • Stone ejector ribs prevent rock retention and protect the casing from drilling damage
  • Alternating open shoulder design provides excellent self-cleaning to maintain traction
  • Symmetrical tread pattern allows for multiple rotation patterns to maximize tire life
  • Sidewall cleats and lugs enhance traction in deep mud and provide additional protection

This tire features a 38-inch overall diameter with a 13.50-inch section width, making it an ideal choice for lifted trucks and serious off-road enthusiasts seeking maximum ground clearance and aggressive styling. The 123Q service rating provides a load capacity of 3,638 lbs per tire at maximum inflation.

Products specifications

Aspect Ratio

13.5

Measuring Rim Width

11.0

Load Range

D

Max psi : 50
Tire Size

38X13.50R20/8

Origin

USA

RPM

543

Radial Bias Flag

R

Section

343

Rim Size

20

Ply Rating

8

Overall Diameter

38.2

Speed Rating

Q

Load Capacity (LB)

3415

Load Index

123

Tread Depth

21.0

Maximum Pressure (psi)

50

Sidewall

Black

Super easy and fast

Great product and shipping was on point

Ck out seems straight forward so far.

Good

Easy to use

Pain free so far.

Fast checkout, I’m hoping shipping is just as fast.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy