2019-2024
2010-2018
2003-2009
Installation Time
(approx) 1 Hour
Difficulty Level:
Simple installation for anyone.
Installation Guides
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Cooper Discoverer STT Pro Mud-Terrain Tire (33" - LT275/70R18)Find parts that fit my vehicle
Item HR46422
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$358.99 each
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Mud-Terrain Tire
- Size: 33-Inch - LT275/70R18
- Stone Armor Technology Guards Against Sharp Rocks and Debris
- Rock Climber Sidewall Technology with Climber Cleats and Flex Grooves
- Grip Jagged Rock and Powder Through Mud
- Uniquely Formulated Rubber Compound
- Outstanding Performance in Wet and Dry Off-Road Conditions
- Deep and Wide Trenches with Notches Clears Thick Mud on Tires
- Large Shoulder Scoops and Lugs for Tackling Tricky Terrains
- Durable, Dependable, and Long-Lasting Quality
- Straightforward Bolt-On Installation
- Drilling and Modification Not Required
- Standard Limited Warranty (See Website for Details)
- Universal Fitment
| Brand | Cooper |
| Tire Model | Discoverer STT Pro |
| Tire Type | Mud-Terrain |
| Tire Size | 33" - 275/70R18 |
| Tire Diameter | 33 |
| Tire Load Index | 125 (3638 lbs per tire) |
| Tire Load Rating | E |
| Tire Tread Depth | 20/32" |
| Tire Revs Per Mile | 606 |
| Tire Speed Rating | (P) Up to 93mph |
| Tire Weight | 62 |
Description
Top Performance Tire. The Cooper Discoverer STT Pro Mud-Terrain Tire (33-Inch - LT275/70R18) is designed for off-road enthusiasts seeking superior traction and durability. This tire excels in tackling muddy, rocky, and rugged terrains with advanced technology that ensures outstanding performance in both wet and dry conditions.
Construction and Appearance. Built with a uniquely formulated rubber compound, the tire features Stone Armor Technology for protection against sharp rocks, while the Rock Climber Sidewall includes cleats and grooves for enhanced grip. The deep trenches and large shoulder scoops give the tire its aggressive, rugged look, designed to clear mud and handle tricky terrains.
Installation. Installation is straightforward with a bolt-on process, and no drilling or modifications are required, making it accessible for most users.
Warranty. Standard limited warranty available (refer to website for more details).
Application. This Cooper Discoverer STT Pro Mud-Terrain Tire (33-Inch - LT275/70R18) offers universal fitment.
Cooper 170111034
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Tire
4.8
Reviews of Cooper Tire Products (15)
Reviews of Cooper Tire products have an average rating of 4.8 out of 5
Feb 26, 2024
Review shared from Cooper Evolution M/T Tire (35" - 35x12.50R17)
2022 Power Wagon - Rocfrk
Great Tire, Low Noise Easy to Balance
Great Tire, Low Noise Easy to Balance! Rides realy well and did not wear funny. I was able to get just under 40,000 miles out of them.
Mar 3, 2024
Review shared from Cooper Discoverer A/T3 XLT Tire (33" - 275/70R18)
Caas1991
Smooth and quiet
They look good, and perform even better. Impressed with how well they did in the little bit of snow we had this year
Feb 25, 2024
Review shared from Cooper Discoverer Rugged Trek Tire (33" - 275/70R18)
2022 High Country - Spenarda51
Great looks and surprisingly quiet
Purchased these for the E Load rating and aggressive looks. Was expecting increased noise from Bridgestone AT tires but no difference. I have put on 750 mixed miles and experienced 1mpg less average on these tires. Very satisfied.
Oct 4, 2023
Review shared from Cooper Discoverer Rugged Trek Tire (33" - 275/70R18)
2014 - RayBr
Nice Tires
once worn in these tires have a hum around 50 mph, but it isn't that bad to me since i have my radio set at 15; i have not experienced much lane drifting as some of the people have stated in reviews on YouTube, well decides normal drifting
Sep 25, 2023
Review shared from Cooper Discoverer Rugged Trek Tire (33" - 275/70R18)
Gabeleeg123
Cooper discover
Great tire great price the trade is awesome not loud on the highway
Aug 31, 2023
Review shared from Cooper Discoverer Rugged Trek Tire (33" - 275/70R18)
Trevorwilky
Rough ride
Rough ride on roads that are not freshly paved, starting to make a good amount of noise as well.
Mar 24, 2023
Review shared from Cooper Discoverer Rugged Trek Tire (33" - 275/70R18)
KrisRoach
New rims and tires
The whole experience was 100 % They kept me informed every step of the way, received my packages in less than 10 days.
Feb 8, 2023
Review shared from Cooper Discoverer A/T3 XLT Tire (33" - 275/70R18)
2007 FX4 - KadeC1
New tires
I went with the coopers and they were just as described. Look good and Price was fair . I’m happy.
Jan 26, 2023
Review shared from Cooper Discoverer A/T3 XLT Tire (33" - 275/70R18)
2020 XLT - NCEMT
Great tires!
These tires are great! This is my second set and I would not get anything else to my truck. They handle great and last better than expected. Highly recommend!
Apr 3, 2022
Review shared from Cooper Discoverer Rugged Trek Tire
2007 WT - JBood
Excellent Tire
Was looking for the perfect all terrain tire with excellent highways manners, off road traction & long life. The Rugged Trek is that tire with excellent looks being icing on the cake. They’re incredibly quiet on the highways as well. I could not be more pleased with this purchase.
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