

🛞 Take the road less traveled — and own it with Cooper Discoverer STT Pro!
The Cooper Discoverer STT Pro LT315/70R17 is a premium all-season off-road tire featuring a 315mm wide aggressive tread, Armor Tek3 reinforced sidewalls for superior durability, and specialized tread patterns like Climber Cleats and Mud Slingers 2.0 for exceptional traction in mud, rocks, and loose terrain. Designed to balance rugged off-road performance with quiet on-road comfort, it offers a tread depth of 21/32nds and a load index of 121, making it a top choice for extreme off-road enthusiasts seeking reliability and longevity.








| ASIN | B017XTV8C4 |
| Aspect Ratio | 70 |
| Brand | Cooper |
| Construction | Radial |
| Customer Reviews | 4.9 4.9 out of 5 stars (57) |
| Date First Available | 6 May 2020 |
| Exterior | RWL: Raised White Letters |
| Item Weight | 31.6 Kilograms |
| Item model number | 170119034 |
| Load Index Rating | 121 |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170119034 |
| Model | DISCOVERER STT PRO |
| OEM Part Number | 9023657 |
| Rim Diameter | 17 Inches |
| Section Width | 315 Millimeters |
| Speed Rating | Q |
| Tread Depth | 21 32nds |
G**K
Quiet and rugged. I was super leiry of buying tires on line. These tires are amazing. Very little if any road noise. Went from 265 to 315. Felt very little loss of power. The difference on the trails were significant. These tires bite and release the mud better than I could have imagined. Absolutely love the look, agility, and off road capabilities. Would highly recommend. I have tried uploading a picture but it won't let me. Anywho. They are amazing
J**N
My first set of the Discovery STT Pro lasted approximately 42,000 miles and still had enough tread to go another year. I decided to swap out my old tires because they have been on my Jeep for almost 10 years and due to an alignment issue there was some cupping. The new tires are amazing. There is very little road noise and the Jeep handles very well. I think as these tires wear out the road noise will increase (I believe this has been typical of other tires I've had on my previous Jeep). Overall I am very happy with the previous tread life of these tires and impressed with their on-road performance.
C**S
The tires are excellent for rock crawling, playing in the mud and sand excellent traction on gravel roads deep snow and slush. So far I have driven 6,000 highway miles on them and they still have the nipples on the tires. You must rotate them every 6,000 miles. And make sure they're still balanced. Downside is even though the tires are factory syped slowing down on wet roads and ice is terrible but you expect those two things when you order mud tires that's not made for either of those things for stopping power.
S**E
Yeah, they do look nice, but I don’t really care much about that, I want function. They’re mounted on a 3rd gen Cummins Dodge pickup so I can’t speak for how well they’d do under a lighter rig, but under a heavy rig like mine they do excellent. I’ve never had trouble in snow, ice or mud. They’re a bit noisey, but if you’re buying big knobby tires you probably shouldn’t care about that. They are a bit difficult to balance sometimes, having good wheels helps. I’ve had this set for a couple years now and the tread is barely worn, I’m not sure how many miles I have on them, I haven’t kept track. I tow quite a bit with my pickup, mostly a four horse trailer that we take places we probably shouldn’t, I’ve blown lot’s of tires on the trailer, even having to drive out on one axle with no spares left, but on those trips I’ve never blown one of these tires.
B**E
Trustpilot
2 months ago
4 days ago