

🛞 Rule Every Terrain with Confidence and Style
The Cooper Discoverer STT Pro 35X12.50R15LT 113Q is a premium all-season off-road tire engineered for extreme performance. Featuring Armor Tek3 reinforced sidewalls, advanced stone expelling tread design, and aggressive mud-slinging cleats, it delivers superior traction and durability across diverse terrains. With a 65,000-mile limited warranty and a smooth, quiet ride, it’s the ultimate choice for adventurous professionals who demand both rugged capability and on-road comfort.














| ASIN | B017XTVHG6 |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #822,162 in Automotive ( See Top 100 in Automotive ) #1,444 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.5 4.5 out of 5 stars (88) |
| Date First Available | November 13, 2015 |
| Global Trade Identification Number | 00029142829485 |
| Is Discontinued By Manufacturer | No |
| Item Diameter | 34.6 Inches |
| Item Weight | 21.8 pounds |
| Item model number | 170113034 |
| Load Capacity | 2535 Pounds |
| Load Range | C |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170113034 |
| Maximum Pressure | 35 Pound per Square Inch |
| Model | DISCOVERER STT PRO |
| OEM Part Number | 170113034 |
| Rim Width | 10 Inches |
| Section Width | 12.5 Inches |
| Size | 35X12.50R15LT 113Q |
| Tire Diameter | 35 Inches |
| Tread Depth | 21 32nds |
| Tread Type | Non-Directional |
| UPC | 029142829485 |
| UTQG | C 6P |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 35/12.50R15 |
T**A
Great Tires
Bought a set of 4 for my 2019 Nissan Pathfinder. The delivery was quick. They are exceptional. They look great on my car, and the ride is smooth without a lot of road noise coming from the tires. The 65,000 mile warranty is a comfort of knowing I have bought a quality tire. Definitely recommend
B**.
Great Purchase
10/10. Great tires for a great price.
E**N
Mud Approved, Snow Approved, Cinders Approved, Ice Okay
I've put these tires through a lot and broken my truck more than one time with these on. I've owned them a hair less than a year but I already know I'll be buying another set of these when the time comes. I've always been a huge fan of Cooper tires and seen their compounds last years without dry-rotting in the Arizona sun. These tires dig deep and they really aren't too loud on the highway. I live in an area that gets a decent amount of snow and ice. These tires are unbelievable in fresh snow but these are not ice tires. They do great for a mud-terrain but I wouldn't be trusting them to stop you on a dime if you are skating on a big sheet of ice. Look at an all-terrain if you are wanting something that can do better on ice. The trade-off is bad mud performance for better ice performance. What's more important to you? I can see just a little wear on the sharp edges on the lugs of the tires but the wear after about 5000 miles is flat and even (despite the wildly messed up alignment on my truck). I would recommend these tires to anyone doing medium-heavy duty off-road. I never recommend these types of tires for a pavement princess but they do look pretty great on any ride.
E**N
Awesome tire
Honest review here. 500 miles in on the tread. Extremely aggressive tread style. Whisper quiet on the highway with these as 35s. Don’t listen about everybody saying there loud, they are very quiet and the only time you even hear them is when you’re slowing down. Took them through a trail with plenty of mud and they performed awesome. Parts where other people got stuck in and struggled I got through pretty easily. I drive an 02 Jeep tj and had 30s on before this. Gas mileage didn’t take a huge hit (maybe 2-3 mpg). Overall a very good tire and I would recommend to anybody who is on the road and trail.
M**N
Love them so far. Hoping they last.
Just bought these, mounted them on some pro comp wheels, and so far they're great. Ive been playing around with tire pressure to get even wear because I want them to last as long as possible. Max rating is 35, but to get more even wear, I'm sitting at 28-30 PSI. A few things I've noticed that some people might be interested in before buying, the tread is softer than I expected but I have a lighter vehicle so I hope they still last, they make a little bit of noise on the road but its not bad at all, they're definitely not your average all-terrain tire, the spacing between the tread is closer to a mud terrain but the center tread pattern looks a little more normal, handling for pavement isn't as good as my old BFGs but thats not what I got them for, and I've already had plenty of compliments. I haven't done any serious off-roading with them yet, but I do plan to, and then I will update this review. I have driven them a little in the sand and on a few dirt roads, they seem to be extremely grippy. Update: The wheels that I put them on were 15x8, which caused the tires to bulge a little and could lead to pre-mature wear in the center of the tread. Luckily I spotted this early, ordered some 15x10s and threw those on (8.5-11 recommended). The tires look much better on those and are now touching evenly across the tread. I'm also able to air them appropriately to around 34 PSI. I did take them out on the trail also, and they are awesome! The trails were a mix of sand and mud, and these things were un-stoppable. I purposefully stopped half way up a sand dune to see if I'd get stuck, and they just pulled me right up no problem.
K**W
If you want aggressive looking, no noise, bad a$$ tire this is it! I have it on my jeep wrangler.
Love this tire! I've had mickey thompson mtz before they were really good. I do have bf goodrich km2's as well they are very good. And stt pro cooper discoverer are the same level as those that have been in the market for a while. They ride smooth, really good on traction when wet and looks way aggressive! Am loving this tire!
R**.
Greatest 4x4 Tire
I got them for my Bronco I've been riding on my first set for over a year. They have fantastic grip and tread life. I crawled Moab, UT with them and never experienced the traction these gave me. It has only one weakness and that would be solid ice (But I've yet to find a tire that is good with ice). They are more than worth your money and the investment returns ten fold with their performance.
C**Y
Great tires, aggressive look
Great tires. Minimal road noise and wore very good. Had them mounted on my 97 chevy k1500.
M**M
Even came early without any hidden costs!
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