cooper discoverer rugged trek - 275/55r20/xl 117t tire three-quarter front view showing aggressive Rough Terrain block tread with large shoulder lugs, micro-gauge siping and deep voids, black sidewall embossed with model name, mounted on dark five-spoke wheel against white background; often used as a rugged replacement tire for trucks and SUVs.
Cooper Discoverer Rugged Trek - 275/55R20/XL 117T Tire
Hero image 0 of Cooper Discoverer Rugged Trek - 275/55R20/XL 117T Tire, 0 of 4

Cooper Discoverer Rugged Trek - 275/55R20/XL 117T Tire

|22 ratings
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Highlights

  • All Season, Rugged Terrain
  • Trucks and SUVs
  • 60,000 mile tread life limited warranty
  • Severe weather traction
  • Excellent on-road traction 
  • Excellent comfort
  • Model # 171-102-005
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Specifications

Product Details
Tire Size:275/55R20/XL
Service Description:117T
Sidewall:Black Sidewall
Material # or MSPN:171-106-005
Rim Width (min. to max.):7.5-9.5
Section Width:11.1
Overall Diameter:32.2
Tread Depth (32nds):16
Members-only price
Prices may vary in club and online
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Tires will be installed at Columbus, Hilliard Sam's Club
Install in 3 days
Return or replace anytime.
Sam's credit card
Limited time! Get a $60 statement credit when you open an account between 10/28-12/2 and use it to make $30 in eligible Sam’s Club purchases within 30 days¹

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 Terrainâ„¢ tread pattern offers tough style and extra grip when you venture off the highway.

Solid traction
Earth Diggersâ„¢ Technology digs deeper into mud, sand or dirt with large shoulder scoops and lugs.

Stability and control
Stable Tracâ„¢ 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.

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Key specifications

Specifications

Product Details
Tire Size:275/55R20/XL
Service Description:117T
Sidewall:Black Sidewall
Material # or MSPN:171-106-005
Rim Width (min. to max.):7.5-9.5
Section Width:11.1
Overall Diameter:32.2
Tread Depth (32nds):16
RPM:645
Max Load (lbs.):2833 lbs @ 50 psi
UTQG Rating
Treadwear:600
Traction:A
Temperature:B

Member ratings & reviews

4.9 out of 5 stars
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22 ratings9 reviews
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Showing 1-3 of 9 reviews

Oct 18, 2026
Reviewer name: Richard
5 out of 5 stars
5 out of 5 stars review

Great Tires. Happy w/the TIres and the Sams Pros.

Time will tell on wear and how they will hold up in the woods, but based on reviews and on Sam's Club's warranty, I am not real concerned. As it is, really like the tires, the first replacements on my Ford F-150. OEM was Perrelli Scorpion ATR, I learned much from that experience, w/those tires done as far as tread at just about 30k, plus they were really sad excuses for All Terrain tires. Well before down to wear bars, very little rubber to bits.. I found I would be squealing my tires a little at stop lights, without real significant acceleration...Not real assuring when thinking about icy winter roads..... I found out the rapid wear is common with OEM tires, they are typically built different than aftermarket equivalents, but with all the tap dancing between Ford and Perrilli when it came time to talk warranty, I walked away w/an education on buyer beware on tires w/new vehicles. But anyway..... These Coopers are amazing so far. The tread is awesome... Makes me want to shine them just to show them off, and I typically am not the advertising sort. Just as quiet as the Perrelli's were. ... meaning that I do not hear them at all. Especially with the music going even at a low volume. The ride is a little firmer, but not in a bad way.... just feels a little more solid, a little less squishy.... I prefer it over what I had. The standout thing about these tires compared to the Perrelli Scorpions is the responsiveness... So much difference that when I first drove away from Sam's, the tire response was so much crisper it was almost a little dangerous as I adjusted to the difference. These tires just grabbed the road and did not let go.... .

Helpful?6WUJX5XUC7S913589217942
Aug 14, 2026
Reviewer name: Dcr
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Excellent

Excellent tires smooth road noise minimal

Helpful?6WUJX5XUC7S913589217942
Apr 18, 2026
Reviewer name: Blue
5 out of 5 stars
5 out of 5 stars review

Best tires well worth

I have had these for 4 years and at 61 thousand miles they still look good and work great just noticed some dry rot and will be buying some new ones again and I drive in the worst of snowfall storms and I will say you will not be disappointed trust me I am a huge safety guy when it comes to tires.

Helpful?6WUJX5XUC7S913589217942
Members-only price
Prices may vary in club and online
How do you want your item?

Pickup

Tires will be installed at Columbus, Hilliard Sam's Club
Install in 3 days
Return or replace anytime.