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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. This tire will help you plow through all the mud, dirt, sand, gravel, and rocks you can find. Get the Discoverer STT Pro and get out there!

Cooper Discoverer STT Pro

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Receive $70 back by online or mail-in rebate when you by a set of 4 qualifying Cooper tires April 1st through May 31st, 2026. Submit form by 6/30/26
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Front and Rear 38x13.50R20LT 123Q

$738.60/tire

Part Number170143006
Max Wheel Width11
Min Wheel Width8.5
Outside Diameter38
SidewallBlack Sidewall
Warranty Mileage-

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Additional Information Cooper Discoverer STT Pro

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. This tire will help you plow through all the mud, dirt, sand, gravel, and rocks you can find. Get the Discoverer STT Pro and get out there!

Highlights

  • Resists stone retention which helps to increase the life of the tire
  • Mud release dimples aid in keeping the tread pattern free of loose soil
  • Alternating shoulder lugs enhance traction in mud and soft surfaces
  • Unique hybrid 3-2 tread pattern reduces noise and increases stability

Specifications

Part NumberSizeMax
Wheel
Width		Min
Wheel
Width		Outside
Diameter		SidewallWarranty
Mileage		StockPrice
170102034LT265/70R17 121Q8.5731.6Raised White Letters-In Stock $419.75
170104006LT295/60R20 126Q10833.9Black Sidewall-In Stock $585.76
170105006LT295/65R20 129Q10835.1Black Sidewall-In Stock $596.45
170106034LT265/75R16 123Q8731.6Raised White Letters-Out of Stock$410.16
17010703433x12.50R15LT 108Q118.533Raised White Letters-In Stock $414.88
170108034LT285/75R16 126Q97.532.8Raised White Letters-In Stock $442.98
170109006LT235/85R16 120Q7.5631.7Black Sidewall-In Stock $373.69
17011003431x10.50R15LT 109Q9731Raised White Letters-Out of Stock$345.53
170111034LT275/70R18 125P9733.2Raised White Letters-In Stock $536.06
170112006LT245/75R16 120Q86.530.5Black Sidewall-Out of Stock$391.63
17011303435x12.50R15LT 113Q118.535Raised White Letters-In Stock $418.90
170114034LT285/70R17 121Q97.532.7Raised White Letters-Out of Stock$439.84
170115034LT295/70R17 121Q107.533.3Raised White Letters-Out of Stock$495.12
170116006LT305/55R20 121Q118.533.2Black Sidewall-Inquire for StockInquire for Price
170117034LT315/75R16 127Q11834.6Raised White Letters-Out of Stock$463.93
170118034LT285/65R18 125Q10832.6Raised White Letters-Out of Stock$509.22
170119034LT315/70R17 121Q11834.4Raised White Letters-In Stock $561.63
170120034LT305/70R16 124Q9.5832.8Raised White Letters-Inquire for StockInquire for Price
170121034LT275/65R18 123Q97.532.1Raised White Letters-Out of Stock$529.51
17012203430x9.50R15LT 104Q8.56.530Raised White Letters-Inquire for StockInquire for Price
170123034LT305/60R18 121Q118.532.4Raised White Letters-Out of Stock$598.49
170124034LT325/65R18 127Q12934.6Raised White Letters-Out of Stock$569.07
170125034LT305/70R18 126Q108.534.8Raised White Letters-In Stock $547.75
170126006LT215/85R16 115Q75.530.4Black Sidewall-Out of Stock$261.25
170127006LT275/65R20 126Q9.57.534.1Black Sidewall-In Stock $573.75
17012800635x12.50R20LT 121Q118.535Black Sidewall-In Stock $631.43
17012900637x12.50R17LT 124Q118.537Black Sidewall-Inquire for StockInquire for Price
17013003432x11.50R15LT 113Q10832Raised White Letters-Out of Stock$341.74
17013200635x12.50R22LT 117Q118.535Black Sidewall-Inquire for StockInquire for Price
170133006LT325/50R22 122Q12934.8Black Sidewall-Inquire for StockInquire for Price
17013400637x13.50R20LT 127Q128.537Black Sidewall-In Stock $716.62
170135006LT295/55R20 123Q10832.8Black Sidewall-In Stock $578.87
170136006LT305/65R17 121Q118.532.6Black Sidewall-In Stock $523.70
17013700637x13.50R17LT 121Q118.537Black Sidewall-Out of Stock$590.87
17013800637x12.50R20LT 126Q118.537Black Sidewall-Out of Stock$631.82
17013900637x13.50R18LT 124Q118.537Black Sidewall-Out of Stock$630.62
17014000637x13.50R22LT 123Q118.537Black Sidewall-Out of Stock$790.67
17014100635x13.50R20LT 121Q118.535Black Sidewall-Out of Stock$687.09
17014200640x13.50R17LT 121Q118.540Black Sidewall-Inquire for StockInquire for Price
17014300638x13.50R20LT 123Q118.538Black Sidewall-In Stock $738.60
17014400638x15.50R20LT 128Q131138Black Sidewall-Out of Stock$800.46
170145034LT295/70R18 129P107.534.3Raised White Letters-In Stock $527.01
170146006LT305/55R20 125Q118.533.2Black Sidewall-Out of Stock$659.15
170147034LT305/60R18 126Q118.532.4Raised White Letters-Out of Stock$618.93
17014800635x12.50R20LT 125Q118.535Black Sidewall-In Stock $669.11
170149006LT295/65R20 129Q10835.1Black Sidewall-Inquire for StockInquire for Price
170150034LT265/75R16 123Q8731.6Raised White Letters-Inquire for StockInquire for Price
170151034LT285/75R16 126Q97.532.8Raised White Letters-Inquire for StockInquire for Price
170152034LT275/70R18 125P9733.2Raised White Letters-Inquire for StockInquire for Price
170153034LT315/75R16 127Q11834.6Raised White Letters-Inquire for StockInquire for Price
170154034LT305/70R16 124Q9.5832.8Raised White Letters-Inquire for StockInquire for Price
170155034LT275/65R18 123Q97.532.1Raised White Letters-Inquire for StockInquire for Price
170156034LT305/70R18 126Q108.534.8Raised White Letters-Inquire for StockInquire for Price
17015700637x12.50R17LT 124Q118.537Black Sidewall-Inquire for StockInquire for Price
17015800637x13.50R18LT 124Q118.537Black Sidewall-Inquire for StockInquire for Price
170159006LT275/65R20 126Q9.57.534.1Black Sidewall-Inquire for StockInquire for Price
17022900635x12.50R18LT 118Q118.535Black Sidewall-In Stock $552.00
17023000633x12.50R20LT 119Q118.533Black Sidewall-In Stock $546.31
17023100635x12.50R22LT 121Q118.535Black Sidewall-In Stock $674.56
17025503435x12.50R17LT 121Q118.535Raised White Letters-Out of Stock$475.74
170306034LT285/70R17 121Q97.532.7Raised White Letters-Out of Stock$466.23
17030700640x13.50R17LT 121Q118.540Black Sidewall-Out of Stock$881.78
17030800637x12.50R17LT 124Q118.537Black Sidewall-Out of Stock$623.04
17030900637x12.50R20LT 126Q118.537Black Sidewall-Out of Stock$669.73
170310034LT315/75R16 127Q11834.6Raised White Letters-Out of Stock$491.75