Search  for anything...
Cooper

Cooper Discoverer STT Pro All-Season 35X12.50R20LT 121Q Tire

    • Based on 1,047 reviews
Condition: New
Checking for product changes
$299.94 Why this price?
Save $166.05 was $465.99

Buy Now, Pay Later

As low as $49.99 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: Only 2 left in stock, order soon!
Fulfilled by Priority Tire ✅
Arrives Tuesday, May 7
Order within 2 hours and 37 minutes
Available payment plans shown during checkout

Size: 35X12.50R20LT 121Q


Features

  • All-Season Off-Road Traction Tire
  • The most extreme all-season, off-road tire Cooper offers to date
  • Provides remarkable off-road performance without sacrificing on-road traction
  • Tread design helps to prevent stone retention
  • Armor Tek3 construction for added tire durability
  • The shoulder of the tire was designed with soft surface cleats and mud scoops
  • Standard Limited Warranty

Description

The Cooper Discoverer STT Pro All-Season 35X12.50R20LT 121Q Tire is the most extreme all-season, off-road tire Cooper offers to date, providing remarkable off-road performance without sacrificing on-road traction. The Discoverer STT Pro tire delivers best-in-class off-road performance, empowering the extreme off-roader to take on the toughest challenges. Patented Armor Tek3 tire technology adds strength to the tire sidewall, providing increased resistance to damage while driving over boulders and uneven, tough terrain. The Discoverer STT Pro comes with rubber formulated to combat shredding and damage from stones and off-road obstacles. The ROCK CLIMBER SIDEWALL gets max traction to help conquer even the toughest obstacles with deep ‘Climber Cleats’ and Flex Grooves built into the side of the tire that grip jagged rocks and power through thick mud. The MUD SLINGERS 2.0 are deep, wide trenches with additional notches throughout the tread combine to give you more grip to power through and help continuously clear thick mud from the tire. The EARTH DIGGERS can tackle tricky terrain with large blocks with alternating mud scoops that forcefully dig into loose dirt, sand or sticky mud. The STONE ARMOR TECHNOLOGY provides the ultimate durability with channels, ridges, and edges designed to help defend against sharp rocks and debris while expelling lodged stones.

Brand: Cooper


Seasons: Year Round


Size: 35X12.50R20LT 121Q


Section Width: 12.5 Inches


Load Capacity: 3195 Pounds


Tread Depth: 21 32nds


Tread Type: Non-Directional


Ply Rating: 10-Ply


Rim Width: 10 Inches


Tire Diameter: 35 Inches


Brand: ‎Cooper


Seasons: ‎Year Round


Size: ‎35X12.50R20LT 121Q


Section Width: ‎12.5 Inches


Load Capacity: ‎3195 Pounds


Tread Depth: ‎21 32nds


Tread Type: ‎Non-Directional


Ply Rating: ‎10-Ply


Rim Width: ‎10 Inches


Tire Diameter: ‎35 Inches


Item Diameter: ‎34.7 Inches


Item Weight: ‎68.87 Pounds


Manufacturer: ‎Cooper


Model: ‎DISCOVERER STT PRO


Item Weight: ‎68.9 pounds


Item model number: ‎170128006


Is Discontinued By Manufacturer: ‎No


Exterior: ‎BSW Black Side Wall


Manufacturer Part Number: ‎170128006


OEM Part Number: ‎90000023673


Construction: ‎Radial


UTQG: ‎E 10P


Bolt Pattern (Pitch Circle Diameter): ‎1 Decimeters


Date First Available: November 13, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Klarna Pay in 4
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great tires
Size: 35X12.50R20LT 121Q
Delivered on time and fast! Looked great!
Reviewed in the United States on February 21, 2024 by Sheri C
    • Worth every penny & very quiet on the highway
Size: LT315/70R17 121/118Q
Review Image by craig sanders craig sanders
Review Image by craig sanders craig sanders
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. ... show more
Reviewed in the United States on December 15, 2023 by craig sanders craig sanders
    • This is my second set of these tires
Size: LT315/70R17 121/118Q
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. ... show more
Reviewed in the United States on October 12, 2023 by John Sweazen
    • Good
Size: 35X12.50R20LT 125Q
Awesome timing and pricing was here in just a few days and a good quality tire
Reviewed in the United States on February 29, 2024 by Ryan
    • Great tires
Size: LT275/70R18 125/122P
Review Image by Bob Espersen Bob Espersen
Review Image by Bob Espersen Bob Espersen
These are really great tires, great traction, they wear great, they will make your vehicle stand out from the rest. They are a bit pricey. You get what you pay for though. They are a bit noisy on the highway, but the benefits out way a little noise. I recommend these tires 100%.
Reviewed in the United States on July 17, 2023 by Bob Espersen Bob Espersen
    • Love them so far. Hoping they last.
Size: 35X12.50R15LT 113Q
Review Image by Mark mcmillan Mark mcmillan
Review Image by Mark mcmillan Mark mcmillan
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. ... show more
Reviewed in the United States on May 25, 2017 by Mark mcmillan Mark mcmillan
    • LOOKS GOOD
Size: LT275/65R20 126/123Q
Just what I wanted though road noise is louder, much louder than advertised Seldom go off the pavement so I should have purchased a more street, highway tread tire, this tire gives you a much less MPG
Reviewed in the United States on March 8, 2024 by JOHN B.
    • and they where pretty smooth. Offroad traction on trails has been great ...
Size: 31X10.50R15LT 109Q
Arrived quickly. Tried them out with NO balancing on them just out of curiosity, and they where pretty smooth. Offroad traction on trails has been great and these have taken the mildly modded Samurai to yet another level of improved capability. Previous tires were 10+ year old BFG AT with only 30% or so tread left and to be fair, I got them 2nd hand and didn't get to experience them new. So, probably any half way decent tire would have been noticeably better than old dried out tires, not matter how good they may have been when new. That being said, the Samurai nearly doubled it's abilities with it's 3" lift and move up to 31's... then adding a rear locker and proper diff gearing netted almost as big a gain again. Finally, adding these tires was not quite as big a jump as the other mods... but, again, a VERY noticeable gain in offroad traction and climbing ability. Long, 100% grade climbs that used to take effort and both hands and were a bit of a challenge, suddenly became casual, one hand on the wheel affairs. No chance to try them in in rain or snow yet.... but trail and rocky stuff has been great. Watch the "cooper puncture test" video online. As for noise.... my 4x4 is NOT my daily driver... so "tire noise" is more like TIRE MUSIC to me. But they are not particularly loud. Yes, you can hear them and they are more noise than your street car.... but, by FAR are NOT that noisy for mud tires. Prices on these fluctuate FAR more than BFG KM2 (my other choice).... but the BFG's would NEVER drop as low priced as these have from time to time.... When they dropped to only about $25 more than the cheapest tires out there, it was a no brainer! VERY pleased with them! [O.|||||.O] ... show more
Reviewed in the United States on September 16, 2018 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.