Cooper Discoverer STT Pro

The Cooper Discoverer STT Pro is a mud terrain all-season tire for light trucks, made in 69 sizes for 15-inch to 22-inch wheels. Give us the size or part number and we'll check stock, price and fitment, and mount it on your wheels.

  • Brand: Cooper
  • Tire type: Mud Terrain
  • Season: All-Season
  • Category: Off-Road
  • Wheel sizes: 15, 16, 17, 18, 20, and 22 inch

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Cooper Discoverer STT Pro Sizes & Specs

69 sizes. Give the size or part number when you call (330) 707-4545 and we can check stock and price.

Showing 25 of 69

SizeLoad / SpeedLoad RangeOverall HeightWheel WidthTread DepthUTQGSidewallPart Number
30X9.50R15104QC (6 Ply)30 in6.5-8.5 in19/32N/ARWL170122034
31X10.50R15109QC (6 Ply)31 in7-9 in20/32N/ARWL170110034
32X11.50R15113QC (6 Ply)32 in8-10 in20/32N/ARWL170130034
33X12.50R15108QC (6 Ply)33 in8.5-11 in21/32N/ARWL170107034
35X12.50R15113QC (6 Ply)35 in7.5-11.5 in21/32N/ARWL170113034
215/85R16115/112QE (10 Ply)30.4 in-18/32N/ABSW170126006
235/85R16120/116QE (10 Ply)31.7 in6-7.5 in18/32N/ABSW170109006
245/75R16120/116QE (10 Ply)30.5 in6.5-8 in18/32N/ABSW170112006
265/75R16123/120QE (10 Ply)31.6 in6.5-9 in18/32N/ARWL170106034
265/75R16123/120KE (10 Ply)31.6 in-19/32N/ARWL170150034
285/75R16126/123QE (10 Ply)32.8 in7-10 in19/32N/ARWL170108034
285/75R16126/123KE (10 Ply)32.8 in7.5-9 in19/32N/ARWL170151034
305/70R16124/121QE (10 Ply)32.8 in7.5-10.5 in19/32N/ARWL170120034
305/70R16124/121KE (10 Ply)32.8 in8-9.5 in19/32N/ARWL170154034
315/75R16127/124QE (10 Ply)34.6 in7.5-11 in20/32N/ARWL170117034
315/75R16127/124QE (10 Ply)34.6 in8-11 in20/32N/ARWL170310034
315/75R16127/124KE (10 Ply)34.6 in8-11 in20/32N/ARWL170153034
265/70R17121/118QE (10 Ply)31.6 in-18/32N/ARWL90000026537-2016
265/70R17121/118QE (10 Ply)31.6 in7-8.5 in18/32N/ARWL170102034
285/70R17121/118QE (10 Ply)32.7 in7.5-9 in18/32N/ARWL170114034
285/70R17121/118QE (10 Ply)32.7 in7.5-9 in19/32N/ARWL170306034
295/70R17121/118QE (10 Ply)33.3 in7.5-10 in21/32N/ARWL170115034
305/65R17121/118QE (10 Ply)32.6 in8.5-11 in21/32N/ABSW170136006
315/70R17121/118QE (10 Ply)34.4 in8-11 in21/32N/ARWL170119034
35X12.50R17121QE (10 Ply)35 in8.5-11 in21/32N/ARWL170255034

Sizes from the manufacturer's current list, October 2026. Find the tire size for your vehicle or see all Cooper tires. You can also shop all tires in Youngstown.

You might also like the Cooper Discoverer Snow Claw, the Cooper Discoverer Stronghold AT or the Cooper Discoverer True North.