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Deal.ai › Cooper › Tires
Cooper
Cooper Discoverer STT Pro Tire

Cooper Discoverer STT Pro Tire

3.7(1,500 ratings)

Best price now

$215.49at eBayChecked Nov 8

26% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.

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Price facts

  • Last seen at $215.49 at eBay on Nov 8.
  • Checked at 6 stores.

Our take on the Cooper Discoverer STT Pro Tire

The Discoverer STT Pro is Cooper's maximum-traction mud-terrain tire for trucks and light commercial vehicles. It uses a chunky, staggered tread with stone ejectors and a three-ply sidewall to survive rocks, mud and gravel. It is a serious off-road tire that stays streetable, but it is loud and heavy on pavement. Against rivals like the BFGoodrich Mud-Terrain T/A KM3 and Toyo Open Country M/T, it trades some highway refinement for aggressive grip and a tougher sidewall.

Best forPickup and 4x4 owners who drive trails and mudOverlanding and ranch work on mixed surfacesLight commercial trucks that leave pavement oftenBuyers who want a durable, aggressive mud tire
Pros
  • Deep, staggered tread clears mud and grips loose rock
  • Three-ply sidewall resists cuts and punctures
  • Stone ejectors keep gravel out of the grooves
  • Load range E handles heavy trucks and trailers
  • Stays streetable for a mud-terrain tire
Cons
  • Loud highway drone
  • Heavy, which hurts fuel economy and acceleration
  • Stiff ride and vague wet-pavement grip
  • Short treadwear compared with all-terrain tires

Cooper Discoverer STT Pro Tire prices at every store

  • Gun Hill Tire HouseNew

    In stock

    $282.99Checked Nov 8
    Visit Gun Hill Tire House
  • TireBros24New

    In stock

    $289.99Checked Nov 8
    Visit TireBros24
  • Tire Wheel ExpertsNew

    In stock

    $314.92Checked Nov 8
    Visit Tire Wheel Experts
  • WalmartNew

    In stock

    $414.99Free shippingChecked Nov 8
    Visit Walmart
  • eBayPre-owned

    Availability unknownSold by utg-tires (99.4% positive, 105,300 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $39.22Free shippingChecked Nov 8
    Visit eBay
  • eBayNew

    Availability unknownSold by midwestaftermarket-com (99.8% positive, 61,200 ratings)Returns: Set by the eBay seller; the eBay Money Back Guarantee covers an item that doesn't arrive or isn't as described.

    $215.49Free shippingChecked Nov 8
    Visit eBay
  • Wheels Below RetailNew

    Out of stock

    $359.18Checked Nov 8
    Visit Wheels Below Retail

Also available at

  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

Cooper Discoverer STT Pro Tire price history

Lowest price we've seen: $280.16 on Nov 9 at eBay. Tracked across 6 stores since Nov 9.

What reviewers say

  • 3.7 / 51,500 ratings

Owners like the off-road grip and tough sidewalls, and many report surviving sharp rocks and heavy loads. The common complaints are highway noise, fast wear and weaker wet-road manners.

What people mention
  • Off-road gripPraisedOwners say it pulls through mud and climbs rock without spinning.
  • Sidewall strengthPraisedDrivers report the three-ply sidewall surviving sharp rocks and roots.
  • Road noiseCriticisedMany say the highway drone is loud and tiring on long trips.
  • TreadwearCriticisedSome owners report the tread wearing quickly for a premium mud tire.
  • Wet tractionCriticisedReviewers note it can feel slippery on wet pavement and in rain.
  • Ride comfortMixedIt rides stiffly on pavement but is tolerable for a mud-terrain tire.

Specifications

Load Index
121.0Source
Speed Index
Q (160 km/h)Source
Suited For
Light Commercial VehicleSource
Studs
NoSource
Rim Diameter

Questions and answers

Is the Discoverer STT Pro good for daily driving?
It can be, but it is loud and stiff on pavement. If most of your miles are highway, an all-terrain tire is a better fit.
How does it compare with the BFGoodrich KM3?
Both are aggressive mud tires with tough sidewalls. The Cooper is often seen as slightly louder and faster-wearing, while the KM3 has a stronger reputation for long tread life.
Does it come in a 17-inch size for my truck?
Yes, 17-inch rim sizes are part of the line, including the 320-width load index 121 fitment. Check the exact size and load rating on your door placard.
Is it an all-season tire?
Cooper lists it as all-season, but it is a mud-terrain design. Expect weak ice and packed-snow grip, and it is not studdable.
What is the speed rating?
This fitment carries a Q speed rating, good for up to 160 km/h. That is normal for a heavy-duty mud-terrain tire.
Can I use it for towing and hauling?
Yes. The high load index and load range E construction suit heavy trucks and trailers, though the stiff sidewall adds to the firm ride.
Where is the Cooper Discoverer STT Pro Tire cheapest?
At eBay, for $215.49, 26% under what the other stores charge, as of our latest check.
What do buyers say about the Cooper Discoverer STT Pro Tire?
Rated 3.7 out of 5 from 1,500 ratings.
Where can I buy the Cooper Discoverer STT Pro Tire?
6 stores we checked sell it, including eBay, Walmart, Gun Hill Tire House, TireBros24, Tire Wheel Experts.

Stores we've priced the Cooper Discoverer STT Pro Tire at

  • Walmart deals and prices

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17
Source
Season
All Season TireSource
Width
320Source
Tread depth
21/32 inches