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The Discoverer STT PRO is the most extreme all-season, off-road tire Cooper offers to date, providing remarkable off-road performance without sacrificing on-road traction.<p> Unique hybrid 3-2 tread pattern reduces noise and increases stability.<p> Alternating shoulder lugs enhance traction in mud and soft surfaces.<p> Anti stone retention resists stone retention which helps to increase the life of the tire.<p> Mud release dimples aid in keeping the read pattern free of loose soil.

At Cooper, we understand that the four tires on your vehicle are what keep you connected to the road, playing a crucial role in how your vehicle handles, and keeping you safe on your travels. As an American company since 1914, our focus is on making quality tires that will perform well and last for thousands of miles. With more than a century in the tire industry, we know that tires matter and that is why you should count on Cooper.

Product Reviews

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Discoverer STT ProDiscoverer STT ProDiscoverer STT Pro
Tire Size
31x10.50R15LT 109Q 6 Ply
Manufacturer Part Number: 90000023638
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:109
Tire Category:On-/Off-Road All Terrain
Diameter:15
Construction:6 Ply Rated
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$179.99
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Tire Size
32x11.50R15LT 113Q 6 Ply
Manufacturer Part Number: 90000023680
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:113
Tire Category:On-/Off-Road All Terrain
Diameter:15
Construction:6 Ply Rated
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Our Price:
$199.99
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Tire Size
33x12.50R15LT 108Q 6 Ply
Manufacturer Part Number: 90000023635
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:108
Tire Category:On-/Off-Road All Terrain
Diameter:15
Construction:6 Ply Rated
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Our Price:
$229.99
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Tire Size
35x12.50R15LT 113Q 6 Ply
Manufacturer Part Number: 90000023651
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:113
Tire Category:On-/Off-Road All Terrain
Diameter:15
Construction:6 Ply Rated
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$219.99
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Tire Size
LT255/75R17 111/108Q 6 Ply
Manufacturer Part Number: 90000023681
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:111/108
Tire Category:On-/Off-Road All Terrain
Diameter:17
Construction:6 Ply Rated
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$224.99
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Tire Size
LT265/70R17 121/118Q 10 Ply
Manufacturer Part Number: 90000023627
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:121/118
Tire Category:On-/Off-Road All Terrain
Diameter:17
Construction:10 Ply Rated
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Our Price:
$229.99
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Tire Size
LT265/75R16 123/120Q 10 Ply
Manufacturer Part Number: 90000023634
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:123/120
Tire Category:On-/Off-Road All Terrain
Diameter:16
Construction:10 Ply Rated
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$224.99
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Tire Size
LT275/70R18 125/122PP 10 Ply
Manufacturer Part Number: 90000023639
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Tire Specifications
Speed Rating [?]:P
Sidewall Style [?]:Outline White Letter
Load Index:125/122
Tire Category:On-/Off-Road All Terrain
Diameter:18
Construction:10 Ply Rated
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Our Price:
$274.99
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Tire Size
LT285/65R18 125/122Q 10 Ply
Manufacturer Part Number: 90000023656
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:125/122
Tire Category:On-/Off-Road All Terrain
Diameter:18
Construction:10 Ply Rated
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Our Price:
$278.99
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Estimated Availability:
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Tire Size
LT285/70R17 121/118Q 10 Ply
Manufacturer Part Number: 90000023652
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:121/118
Tire Category:On-/Off-Road All Terrain
Diameter:17
Construction:10 Ply Rated
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Our Price:
$268.99
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Estimated Availability:
Available
Tire Size
LT285/75R16 126/123Q 10 Ply
Manufacturer Part Number: 90000023636
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:126/123
Tire Category:On-/Off-Road All Terrain
Diameter:16
Construction:10 Ply Rated
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Our Price:
$244.99
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Estimated Availability:
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Tire Size
LT295/70R17 121/118Q 10 Ply
Manufacturer Part Number: 90000023653
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:121/118
Tire Category:On-/Off-Road All Terrain
Diameter:17
Construction:10 Ply Rated
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Our Price:
$277.99
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Estimated Availability:
Available
Tire Size
LT305/60R18 126/123Q 12 Ply
Manufacturer Part Number: 90000036003
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:126/123
Tire Category:On-/Off-Road All Terrain
Diameter:18
Construction:12 Ply Rated
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Our Price:
$401.92
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Estimated Availability:
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Tire Size
LT305/70R16 124/121Q 10 Ply
Manufacturer Part Number: 90000023658
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Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:124/121
Tire Category:On-/Off-Road All Terrain
Diameter:16
Construction:10 Ply Rated
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Our Price:
$249.99
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Estimated Availability:
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Tire Size
LT315/70R17 121/118Q 10 Ply
Manufacturer Part Number: 90000023657
See Other Fitments
Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:121/118
Tire Category:On-/Off-Road All Terrain
Diameter:17
Construction:10 Ply Rated
Special Offer
Our Price:
$299.99
Rebate Available
Qty.
Estimated Availability:
Available
Tire Size
LT315/75R16 127/124Q 10 Ply
Manufacturer Part Number: 90000023655
See Other Fitments
Tire Specifications
Speed Rating [?]:Q
Sidewall Style [?]:Outline White Letter
Load Index:127/124
Tire Category:On-/Off-Road All Terrain
Diameter:16
Construction:10 Ply Rated
Special Offer
Our Price:
$279.99
Rebate Available
Qty.
Estimated Availability:
Available
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