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UNCONFIRMED FIT
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Cooper

Cooper Discoverer Road+Trail AT Tire for Light Truck & SUV

#508-3147-8
$378.99 each
$1,515.96 Set Of 4
Top Rated
Road Rated - 97.0
Size: P255/55R20 110V
Part: #171279049

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Quebec residents: For information on maintenance and repair click here.

Book Online for Tire Installation

6 year, nationwide tire warranty is included when you install at Canadian Tire!
To book an appointment online, look for your link included on the Order Confirmation page or order confirmation email after your purchase.

6 Year Nationwide Tire Care Guarantee

Included with installation

Tire Replacement Advantage Warranty

From $9.99 per tire with installation

Product Details

The Cooper Discoverer Road+Trail AT tire is designed for rugged all-terrain performance, offering drivers reliable stability and control on diverse surfaces. Crafted to handle the demands of both everyday roads and challenging paths, this tire supports smooth, confident driving in varied conditions. Ideal for those who seek durability and versatility, it’s built to tackle off-road adventures and provide steady traction in rough weather.

Snow Peak Rated

The 3 Peak Mountain Snowflake symbol indicates the tire is rated for Severe Snow Service. This is the acceptable standard for winter driving in Canada and provides improved safety on snow and ice.

Mud And Snow Rated

The M+S symbol differentiates an All-Season tire from a Summer only tire. While rated for light snow, they will not match a winter tire for traction or stopping distance on snow and ice.

  • EnduraGuard™ construction keeps tire shape over rough terrain for even tread wear

  • Extended tread pattern 50% further down the sidewall for enhanced grip on soft or uneven surfaces

  • Interlocking tread blocks deliver consistent traction and control on uneven ground

  • Angled center lugs help improve stability and traction on snowy roads

  • Durable build ensures versatile on- and off-road handling

  • Wheels sold separately

Part Number 171279049
Mileage Rating 0 km
Speed Rating V
Load Index - Single 110
Winter Rated Yes
Aspect Ratio Percent 55.00
Wheel Diameter 20 in
Load Range XL
Ply Rating 2
Run Flat No
Prefix Code P
Wheel Width Max 9 in
Exclusive Winter Use No
M+S Rated Yes
Maximum Inflation Pressure 50 psi
Sidewall Style RBT
Size P255/55R20 110V
Tire Width 255 mm
UTQG 620/A/B
UTQG Temperature Rating B
UTQG Traction Rating A
Weight 29.608 lb
Wheel Width Min 7 in

Standard Tire Care Guarantee

Our 6-year nationwide Standard Tire Care Guarantee is included on all tires that are purchased and installed at Canadian Tire.

Protect Your Tires with Confidence

Add peace of mind to your purchase with our optional Tire Replacement Advantage warranty. You’ll get free replacement coverage for non-repairable damage caused by road hazards and manufacturing defects. It’s easy to add—simply opt in when booking your installation online and pay in store.

Coverage starts at $9.99 per tire with installation.

You can opt in when booking your installation appointment online, then pay (or opt out) in store.

CoverageStandard Tire Care GuaranteeTire Replacement Advantage
Warranty costNo charge with installationFrom $9.99 with installation
Manufacturer defects or damage replacementPro-Rated

Availability

Non-repairable road hazard damage replacementPro-Rated

Availability

1 year spare tire change service

unavailability

Availability

6-year warranty from the date of purchase

Availability

Availability

Repairable road hazard damage repair

Availability

Availability

New rubber valve stems

Availability

Availability

30 day customer satisfaction guarantee

Availability

Availability

View Tire Warranty Information
Online Ordering:
  • Pick Up is free at most stores (some stores require a minimum order value before tax)

  • Shipping fee is based on size and weight of products and distance from address to store

  • Same-Day Delivery costs $9.99 per order

  • Same-Day Delivery and Ship to Home are unavailable for tires and wheels

  • Online Ordering Information.

Returns:
  • Most products can be returned or exchanged at any Canadian Tire store within 90 days of purchase

  • Some products are non-refundable and non-exchangeable

  • Special order hard parts and specific application automotive parts must be returned to original store of purchase

  • The return info outlined above may not apply to the product you are currently viewing. For complete details and exceptions, please refer to our Return Policy.

Road Rated

The Road Rated program is conducted at world-class testing facilities, by professional drivers, experts in tire testing, and third-party auditors. Our goal is to help you buy with confidence and select the tire that best suits your driving needs.

How we calculate our testing scores
97.0
Road Rated 97
92.9
Off Road Rating 92.9

Reviews

Rating Snapshot

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62 reviews with 5 stars.
7 reviews with 4 stars.
4 reviews with 3 stars.
3 reviews with 2 stars.
3 reviews with 1 star.

Overall Rating

4.5
4 out of 10 (40%) reviewers recommend this product

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Filter Reviews

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  • snow
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1 to 5 of 79 Reviews.
1 – 5 of 79 Reviews

Cooper Discoverer XT exceeds expectations

2 days ago
So far so good after 10 days. Fairly quiet and smooth ride on paved hwy. Runs fine through pooled water and no hydroplaning.. Dirt / off road has good traction. Will see when the snow flies.
Helpful?

excellent AT tire especially for on road pavement

4 days ago
these tires are super good
Helpful?

Very happy with these tires

12 days ago
I've had these tires on my truck for about 2 months now and I'm very happy with them. They are quiet and smooth on the highway almost like HT tires, but they feel much better than standard all seasons on gravel or trails. I'll still switch to dedicated winter tires in winter, but these Coopers did okay in spring snow storm we had this year too.
Helpful?

Tires

14 days ago
Just what I needed! Guys did a Great job installing them as well!!!
Helpful?

Quiet AT tires, best in class?

14 days ago
I have been riding these on my Lincoln Nautilus for a little over 1500km now. The ride is smooth and quiet not only for an AT tire but even better than most all seasons. They have been driven on gravel, highway, city, and in heavy rain Traction and grip seems great. Have not had them in snow or ice yet but so far, I'm really happy with this purchase. I had them installed at Canadian tire for the warranty and have had no issues so far.
Helpful?
1 – 5 of 79 Reviews

Questions

1 - 3 of 3 Questions

Q: How are these tires on the highway? Are they loud at 100 km/h?

20 days ago
4 Answers
  • A: No not noisy on the highway.
    15 days ago
    Helpful?

Q: How are they on ice, and how are they for road noise

2 months ago
1 Answer
  • A: very good in snow and low noise 
    2 months ago
    Helpful?

Q: How many plies does the Cooper Discoverer Road + Trail AT tire have?

a year ago
1 Answer
  • A: Thank you for your question. The Cooper Discoverer Road + Trail AT tire has a 2-ply sidewall construction.
    a year ago
    Helpful?