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🛞 Elevate your ride with the ultimate all-terrain beast — don’t just drive, dominate.
The Cooper Discoverer STT Pro LT305/70R16 is a 10-ply, 32.99-inch diameter all-season off-road tire engineered with patented Armor Tek3 technology for superior sidewall strength and durability. Designed to excel in mud, snow, and rocky terrain, it features specialized tread elements like Rock Climber Sidewalls and Mud Slingers 2.0 for maximum traction and self-cleaning capability. With a load capacity of 3,525 lbs and a 65 PSI max pressure, it balances aggressive off-road performance with reliable on-road handling, making it a top choice for extreme off-road enthusiasts seeking year-round versatility.









| ASIN | B017XTUAPU |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #347,148 in Automotive ( See Top 100 in Automotive ) #511 in Light Truck & SUV All-Terrain & Mud-Terrain Tires |
| Brand | Cooper |
| Brand Name | Cooper |
| Construction Type | Radial |
| Customer Reviews | 4.7 out of 5 stars 170 Reviews |
| Global Trade Identification Number | 00029142829652, 00291428296520 |
| Included Components | Tire Only |
| Item Diameter | 32.99 Inches |
| Item Dimensions | 32.99 x 32.99 x 12.3 inches |
| Item Type Name | Tire |
| Item Weight | 57 Pounds |
| Load Capacity | 3525 Pounds |
| Load Index | 124.0 |
| Load Range | E |
| Manufacturer | Cooper |
| Manufacturer Part Number | 170120034 |
| Manufacturer Warranty Description | Standard Limited Warranty |
| Maximum Pressure | 65 Pound per Square Inch |
| Model Number | 170120034 |
| OEM Equivalent Part Number | 90000023658 |
| Ply | 10-Ply |
| Rim Size | 16 Inches |
| Seasons | Year Round |
| Section Width | 305 Millimeters |
| Size | LT305/70R16 124/121Q |
| Spare Tire Mounting Location | Front or Rear |
| Speed Rating | Q |
| Tire Aspect Ratio | 70.0 |
| Tire Diameter | 32.99 |
| Tread Depth | 19.5 32nds |
| Tread Type | Non-Directional |
| UPC | 291428296520 029142829652 |
| Unit Count | 1.0 Count |
| Vehicle Tire ISO Metric Size Description | 305/70R16 |
T**T
Best tire Ive ever owned. And Ive owned ALOT.
So far they are fantastic. Ordered them in 265/75r16s and got exactly what I wanted. There is some road noise from them, but they are by far the quietest M/T I've ever had. I dont know why some site list these as a mud tire and some list them as all terrains, but let me clear the air. These are a mud tire that also perform well on the road. I've had them on dry pavement, wet pavement, 16in snow, deep mud, uphill climbs, and on rocks. Excellent performance on all around. The only think I really havn't tried yet is sand. In my opinion these are the best tires Cooper has ever came out with.
A**R
If you’re looking for an aggressive looking & top notch off-road tire, look no further.
Love ‘em! I’ve had these on for about a year & a half, and have rotated them once. Completely even tread wear. They look spectacular with my black rims, very aggressive & rugged looking tire. I’ve had a ton of compliments since putting them on. I had been thinking about going with BF Goodrich or Nittos originally, SO glad I went with these instead. Great on the beach, in snow, and mud. Awesome tire, for a great price.
F**L
Good Looking, Quieter than expected
So I ended up with a skinny pair of these 215 85r16. They came with this weird manual transmission swapped Caprice Station Wagon that I bought. The guy who built the car would use it to tow a dump trailer full of hay in his field. Car has an elocker whole 9. I bought it to tow but didn't really plan to take it offroad. So I had a nice pair of mud tires. I also have a 2000 Nissan Frontier 4x4 that was on bald Bridgestones, I decided to mount them on some Xterra wheels and bought a second pair for my Frontier. They look good. a little small, plenty of clearance, but I dig em. They ride good, grip good, what else can you ask for? I think these work out to a 30.4" or so. They rose the truck up a good bit. Will have to get this thing offroad asap
S**H
Cooper Quality
3rd set of these tires on my Toyota and I can't say enough good things about them. The last set lasted me about 50 - 55k before needing to be replaced, with tire rotation every 5k miles, and never left me stranded. Noise level is minimal on these tires, and they do well in just about any terrain in the Northeast.
R**R
Great mud tire!
Hard to find mud tires in stock tire sizes. These are a good value for the price. I've been running these tires on two different vehicles now for about a year and a half, and they seem to be holding up really well, and for a mud tire that's pretty impressive. These Cooper SST mud terrain tires weren't the cheapest but they weren't the most expensive either. Good middle the road value. This particular purchase I only purchased one tire to replace my old warn out spare. Highly recommended by me!
J**N
I was complimented on how those four tires look on the back of my truck
These tires were actually reasonable as far as cost and I don't hear any noise level it all and the mileage maybe I lost 2 miles per gallon at the most overall I like the tires they have very good traction and are good in the mud the kids are going to come over here cars on a trailer for a living and this truck was a lifesaver with the tires on it
L**G
Real 32” tire
Upgraded my stock tires on my 21 tacoma after lifting. My old tires were small and got no teaction offroad. The coopers have very little road noise and my fuel economy was hardly effected. The 265/75/16 is a true 32” tire and has unbelieveable off road traction yet good mannered on road too
J**D
Great tires.
I've had a set of these in 235/85R16 on my 1994 Diesel K2500 Suburban for almost a year now. They are great tires. They sing a bit on the interstate but since the truck is fairly loud as is, it isn't all that noticeable. I think they look pretty good and I don't have any issues towing my car trailer.
L**I
Gomme e venditore “su ruote “ok.
gomme di qualità e venditore preciso.
B**R
Great tyres, conveniently & quickly delivered!
Needed new tyres for my LR Defender110...bought some other ones (no names!) from another company! They arrived WRONG SIZE..& it took 3 weeks for them to admit & collect & return payment. Amazon does give you "peace of mind" in that direction - and the tyres are really excellent! A good mix between off-road and road use...shame they are NOT winter-rated! Two years on...(2020) tyres are all good, hard cornering on a wet road they'll slide - but predictably! Good in winter as well - though not EU winter-rated! Wear after 35000Km is very acceptable. Use off road is excellent, fantastic grip (shattered half-shaft actually!). Recommended buy especially if you do any off road/mud travelling
Trustpilot
2 weeks ago
1 month ago