Skip to main content
Free Shipping Best Price Guarantee 100+ Certified Installers 30-Day Easy Returns
+1-916-290-1970
Set your location for local pricing & delivery estimates.
Tire Ryder
Free Shipping
Best Price Guarantee
+1-916-290-1970

Your cart

COOPER DISCOVERER AT3 4S 275/55R20 117T XL BLK tread pattern

Tire only. Wheel shown for display — sold separately.

COOPER 0.0 (0 reviews)

COOPER DISCOVERER AT3 4S 275/55R20 117T XL BLK

Selected size 275/55R20 117T XL BLK
Per tire
$311.31
was $351.27
11% OFF
Set of 4 — what you pay
$1245.24
Free shipping 30-day returns Best price guarantee

Ships in 1 business day Arrives in 2–5 business days

As low as $103.77/mo or 0% APR

Learn more

Add installation at checkout — 100+ certified shops nationwide

About this tire

Why drivers choose the COOPER DISCOVERER AT3 4S

The COOPER DISCOVERER AT3 4S — 275/55R20 117T XL BLK

At a glance — 275/55R20 117T XL BLK

  • Speed Rating T
  • Load Index 117
See full technical specifications

Key features

  • Patented Snow Groove Technology: this tire masters snowy conditions with enhanced traction and improves stopping abilities in snowy conditions.

  • Aqua VAC Channels: Aqua VAC Channels swiftly expel water and slush, ensuring superior grip and reducing hydroplaning risks. 

  • 5-Rib, All-Terrain Pattern: The 5-rib, all-terrain pattern allows for seamless transitions from off-road adventures to smooth highway drives, providing enhanced wet and dry traction.

  • Micro Gauged Sipes: Micro gauged sipes boost stability and control, while preventing stone drilling. 

  • Zigzag Sipes: Zigzag sipes maximise your grip with more biting edges, delivering superior traction in all conditions. 

  • Adaptive Traction Technology: Adaptive Traction Technology ensures you conquer various terrains with exceptional grip and control. 

Performance ratings

Performance ratings for this tire are coming soon.

Spec sheet

Technical specifications for COOPER DISCOVERER AT3 4S 275/55R20 117T XL BLK

Exact specifications for this variant. View specs across all sizes →

Inflation Pressure 50
Load Capacity 2833
Load Index 117
Load Range XL
Max Speed MPH 118
Mileage Warranty 65000
Overall Diameter 31.93
Rim Range 7.5-9.5
Section Width 10.9"
Sidewall Blackwall
Speed Rating T
Tread Depth 12/32 nds
Tread Design Symmetrical
UTQG 620AB
Wet Traction A
Verified reviews

What drivers are saying about the COOPER DISCOVERER AT3 4S

Be the first to review this tire.

0.0

Based on 0 verified reviews

  • 5 ★
    0
  • 4 ★
    0
  • 3 ★
    0
  • 2 ★
    0
  • 1 ★
    0
Customer Q&A

Questions about the COOPER DISCOVERER AT3 4S 275/55R20 117T XL BLK

Shipping & install

Shipping & installation for the COOPER DISCOVERER AT3 4S

Free shipping

Every order ships free to the contiguous 48 states. Most arrive in 2–5 business days.

100+ Certified installers

Add installation at checkout — we'll route the tires to a certified shop near you.

30-day returns

Unmounted tires can be returned for a full refund within 30 days of delivery.

0% APR financing

Spread cost over 3, 6, or 12 months through Affirm — no hidden fees, soft credit pull.

Shipping details Tap to read
  • Free shipping throughout the United States.
  • Fast shipping by FedEx and UPS.
  • Orders above $800 require signature on delivery.
  • Sales tax applied for orders within California.
  • A valid tracking number is emailed once your order is dispatched.
  • Currently US-only — please contact us for international inquiries.
  • Orders placed before 1 PM PST ship the same day.
  • Express Next-Day, 2nd-Day, and 3rd-Day options are available for an additional fee — please contact us before ordering.
  • Default carrier method is Ground Shipment.
Read full shipping policy
30-day worry-free returns & cancellations Tap to read
  • Cancellations are accepted only before the order is dispatched. Contact customer support by phone or email to cancel.
  • We accept returns within 30 days after the order is shipped.
  • Buyer pays the return shipping cost.
  • 100% refund if the item is unused and undamaged by the purchaser.
  • 24/7 assistance if a delivered item is not as described or arrives damaged — please contact us for help.
  • Please provide your vehicle's year, make, and model so we can confirm fitment when needed.
  • If an item arrives damaged in transit, please send clear photos of the damage so we can process a replacement.
Read full return policy