Wheel not included

Cooper Discoverer AT3 LT
  • Cooper Discoverer AT3 LT
  • Cooper Discoverer AT3 LT
Tire Rack Test

Does this tire fit your vehicle?

Tires are designed specifically for different vehicles and wheel sizes. Tell us about your vehicle or the specific size you want so we can help find the right tires for you.

The Discoverer A/T3LT is Cooper's On-Road All-Terrain tire designed for the drivers of pickup trucks, work vehicles and full-size SUVs who need a tire that provides the rugged durability required to keep up with their active lifestyles. Engineered to tackle dirt, gravel, mud and the urban jungle, the Discoverer A/T3LT combines off-road prowess with agreeable on-road comfort and year-round traction, including light snow traction that meets the tire industry's severe snow service rating requirements and earns the three-peak mountain snowflake (3PMSF) symbol.

Durable-Tread Technology combines a shred-resistant silica compound with the Discoverer A/T3LT 's next-generation all-terrain tread pattern. Cooper's Even Wear Arc Technology optimizes the shape of the footprint for balanced pressure at the contact patch, improving handling and promoting even treadwear. The tread pattern is designed to aid dry traction, while Whisper Grooves between the outboard tread blocks help reduce noise throughout the tire's life. Stone ejector ledges help prevent punctures due to stone drilling, and the alternating scoop and cleat lugs in the shoulder are designed to provide grip on rock, in thick mud or loose soil. Deep, circumferential channels and wide, lateral notches improve hydroplaning resistance, while multiple zigzag sipes in the independent tread blocks create the biting edges needed for traction in slippery conditions. Snow Groove Technology uses saw-tooth block edges to trap snow in the tread for effective snow-to-snow traction.

The internal construction of the Discoverer A/T3LT consists of a robust, two-ply polyester casing. A single-ply, nylon reinforcement above two high-strength steel belts further increases durability and handling response, along with providing high-speed stability.

Note: While non-winter tires featuring the three-peak mountain snowflake (3PMSF) symbol may provide additional longitudinal snow traction beyond what all-season (M+S) tires not bearing the symbol can deliver, they do not match the capability of a true winter tire in all adverse weather conditions.

Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?

Tire Rack Test Results Cooper Discoverer AT3 LT

Testing On-Road All-Terrain Tires 2021: Cooper Discoverer AT3 LT (2:11)

The Discoverer AT3 LT is a popular option in On-Road All-Terrain tires, so we tested it against some of the best in the category to see how the performance stacks up.

Read the Full Test Report

Ratings Charts & Reviews Cooper Discoverer AT3 LT

Tire Category: On-Road All-Terrain

Consumer Surveys

 
Best in Category
Miles Reported
Recommended
Treadwear
Cooper Discoverer AT3 LT
Good
93%
2.7M
8.3 - Good
8.3 - Good
8.8 Dirt Traction
8.2 Sand Traction
8.0 Mud Traction
8.4 Rock Traction
8.7 - Excellent
8.7 Hydroplaning Resistance
8.8 Wet Traction
8.9 - Excellent
8.8 Corner Stability
9.2 Dry Traction
8.8 Steering Response
7.8 - Good
8.3 Light Snow Traction
8.0 Deep Snow Traction
7.0 Ice Traction
8.3 - Good
8.4 Ride Quality
8.2 Noise
8.4 - Good

Customers Say

Customer surveys indicate the Cooper Discoverer AT3 LT excels in dry traction, with most ratings in the 9-10 range for confident on-road handling and all-terrain capability. Wet traction and hydroplaning resistance also earn strong praise, scoring 8-10 in most reviews. Winter traction performs well in snow and deep snow (7-10), though ice traction shows more variability, with some scores dipping to 4-5. Ride comfort receives consistent positive feedback (7-10), though a few note moderate road noise. Treadwear ratings are solid (7-10), with many customers highlighting durability across mixed conditions. Overall, it's praised as a reliable on-road all-terrain tire, particularly for dry and wet performance.

AI-generated from the text of customer reviews

Select to learn more

Customers Like:

142 customers mention "Wet Traction"

  • 133 positive
  • 9 negative

Customers praise wet traction with most scoring 9s and 10s, highlighting confident grip in rain. Some 7s and 8s note reliable performance, with minimal hydroplaning concerns reported.

October 29, 2019

3.8 out of 5 Star Rating
3.8 out of 5

...These handle really well on dry or wet pavement, have a lot less noise than I was expecting with the aggressive tread pattern, and have just proven to be a solid all around tire - until you get on snow or ice...

I've had this tire on a 2006 Ram 2500 (load range E 10 ply) for the past 60,000 Minnesota miles. They still have a 6/32" of tread, though I run on gravel roads a lot more often than most people. But this is still almost double the miles I got from my last set of tires. Here's my take: These handle really well on dry or wet pavement, have a lot less noise than I was expecting with the aggressive tread pattern, and have just proven to be a solid all around tire - until you get on snow or ice. Then they're bad. I think Cooper must have used a really hard tread compound that sacrifices cold weather performance for longer life. I don't think I'll get these next time because I live in MN, but I would definitely get them again if all my driving was in a warmer climate.

Vehicle: 2006 Dodge Ram 2500 4wd QuadCab
Miles Driven on Tires: 60,000
Driving Conditions: Combined Off Road/Highway
Location: MAPLE GROVE, MN
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

February 20, 2019

4.4 out of 5 Star Rating
4.4 out of 5

...Even though those still had plenty of tread left on them, I couldn't trust them after three separate hydroplaning events at very slow speeds. Hydroplaning can easily happen at high speed on any tire, but when you are driving cautiously through heavy rain at slow speeds and you are still hydroplaning, the tires need to go...

I had these tires put on three months ago. I do mostly city and highway driving but I wanted a heavy duty tire that handled well in all conditions without excessive road noise. These tires were a great find! I have been very pleased with the construction and overall quality of these tires. Cooper did an excellent job designing and testing these tires for truck use.
My previous set of tires on my truck were Firestone Destinations. I was very unhappy with how those performed. Even though those still had plenty of tread left on them, I couldn't trust them after three separate hydroplaning events at very slow speeds. Hydroplaning can easily happen at high speed on any tire, but when you are driving cautiously through heavy rain at slow speeds and you are still hydroplaning, the tires need to go.
These Cooper tires feel like they are bullet proof. American made,10 ply rating, rock removing tread and they weight 50 lbs a piece. Sure, these tires hurt your acceleration a little, but they're grippy, provide good traction and they aren't noisy. I'm hoping to have several years and many many miles out of these tires.

Pros: Quiet, Tough, Heavy, Grippy, American Made in Arkansas

Cons: Ride a little rough, probably due to all of the tread, not a deal breaker for me though
Mileage suffered a little, but it's worth the good handling in bad weather

Vehicle: 1997 Ford F150 Regular Cab 4wd
Miles Driven on Tires: 3,000
Driving Conditions: Combined Highway/City
Location: LAUREL, DE
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

112 customers mention "Winter Traction"

  • 100 positive
  • 12 negative

Customers praise the Cooper Discoverer AT3 LT's excellent snow and deep snow traction with most scores 9-10. Ice traction shows mixed results, with ratings ranging 4-8. A few customers report very low ice performance (0-2), but most find winter capability reliable for an all-terrain tire.

July 09, 2022

3.8 out of 5 Star Rating
3.8 out of 5

...The most snow Ive ever had them in was about 14 inches and they gripped and we plowed through the snow with hardly any problems. Ice is the only situation wherw these tires aren't great, but that goes for a majority of the tires on the market anyway...

This is the 2nd set of these tires I've bought. I got just over 70k out of the first set, ran them at 45psi and rotate and balanced them at every oil change. They did so well, I got another set. I have over 40k on them and they still look fairly new and still ride good. They aren't as quiet as the Michelins I had on a previous truck, but for a AT tire, they aren't awful. I mostly drive country roads, gravel roads, some highway, some mud, and through rain and snow when we get any. I will say 99% of the time these tires grip and go, and rarely slip. The most snow Ive ever had them in was about 14 inches and they gripped and we plowed through the snow with hardly any problems. Ice is the only situation wherw these tires aren't great, but that goes for a majority of the tires on the market anyway. If we get ice, I usually don't have to drive anywhere anyway so its ok. Otherwise, they are great tires and I will keep buying them.

Vehicle: 2017 RAM 1500 4wd Quad Cab
Miles Driven on Tires: 43,500
Driving Conditions: Combined Off Road/Highway
Location: NEW ALBANY, IN
Driving Style: Spirited
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

March 30, 2021

4.6 out of 5 Star Rating
4.6 out of 5

Excellent traction while plowing heavy wet snow. Best traction ever felt in tires for 38+ years on the road...

Excellent traction while plowing heavy wet snow. Best traction ever felt in tires for 38+ years on the road. Would definitely recommend these tires to friends and family.

Vehicle: 2004 Dodge Ram 2500 QuadCab 4wd
Miles Driven on Tires: 1,000
Driving Conditions: Combined Highway/City
Location: WOODRIDGE, NY
Driving Style: Easy Going
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

February 07, 2025 (Verified Purchase)

5 out of 5 Star Rating
5 out of 5

...Works great in rain and snow in the Sierra Nevada mountains...

Excellent tire. Works great in rain and snow in the Sierra Nevada mountains. Highway travel is smooth

Vehicle: 2011 Ford F350 4X4 Single Rear Wheel 245/75-17 or 265/70-17 OE
Miles Driven on Tires: 2,000
Driving Conditions: Combined Highway/City
Location: RENO, NV
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

148 customers mention "Dry Traction"

  • 143 positive
  • 5 negative

Most customers give the Cooper Discoverer AT3 LT excellent dry traction scores of 9-10, praising its confident grip and stability. A few rate it 7-8, still solid for all-terrain use.

January 18, 2020

4.7 out of 5 Star Rating
4.7 out of 5

...Immediate steering respond improvement, traction in all conditions, and ride comfort especially on rough roads...

I had the GY wranglers from the factory just so you know what my comparison point is. That being said, there is no comparison to the AT3s. Immediate steering respond improvement, traction in all conditions, and ride comfort especially on rough roads. The only, and I mean only, downside are the inherent changes going from an all-season to an all-terrain tire. A slight drop in fuel efficiency (<1 mpg) and a little more road noise. Stable, dependable, and worth every penny.

Vehicle: 2015 Chevrolet Silverado 1500 4wd Crew Cab
Miles Driven on Tires: 3,000
Driving Conditions: Combined Off Road/Highway
Location: DUBUQUE, IA
Driving Style: Spirited
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

November 21, 2023

4.4 out of 5 Star Rating
4.4 out of 5

...Good traction all around, even when you put it in sport mode and stomp on the gas. Can feel a bit squishy in corners, but never lost traction...

Overall a great choice. Quiet ride in all conditions - really noticeable when driving on ground-down highway between these tires and other vehicles. Good traction all around, even when you put it in sport mode and stomp on the gas. Can feel a bit squishy in corners, but never lost traction. Did notice a drop in MPG (about 2) after changing from the stock all-seasons that came with the truck. Treadwear is a bit iffy - have some odd center wear like they were severely overinflated, even though I'm religious about maintaining proper inflation and alignment. However, did a lot of heavy towing recently so I'm going to blame that. Definitely staying with Cooper AT3s.

Vehicle: 2015 Ford F150 4WD SuperCab
Miles Driven on Tires: 30,000
Driving Conditions: Combined Highway/City
Location: NEW BRITAIN, CT
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

148 customers mention "Ride Quality"

  • 130 positive
  • 18 negative

Customers praise the Discoverer AT3 LT's ride comfort, with most scoring 9s-10s for smoothness and noise levels. While some report lower scores (0-6), the majority highlight excellent on-road refinement for an all-terrain tire, noting reduced vibrations and quiet operation compared to rugged competitors.

April 23, 2022 (Verified Purchase)

4.4 out of 5 Star Rating
4.4 out of 5

Very comfortable ride for an off road capable tire...

Very comfortable ride for an off road capable tire. Not a lot of miles on them yet, but pleased so far.

Vehicle: 2015 Toyota Tundra 4wd CrewMax
Miles Driven on Tires: 300
Driving Conditions: Combined Highway/City
Location: POUNDING MILL, VA
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

April 15, 2023 (Verified Purchase)

4.5 out of 5 Star Rating
4.5 out of 5

...quiet riding on the highway

Good multi surface tire excellent tread wear so far quiet riding on the highway

Vehicle: 1980 Chevrolet C20 2wd Pick-up
Miles Driven on Tires: 500
Driving Conditions: Combined Off Road/Highway
Location: PURCELL, OK
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

November 20, 2022 (Verified Purchase)

4.1 out of 5 Star Rating
4.1 out of 5

...good ride quality little soft in the turns very quiet ride

HAs a good ride quality little soft in the turns very quiet ride

Vehicle: 2012 RAM 2500 4WD Mega Cab
Miles Driven on Tires: 2,500
Driving Conditions: Combined Highway/City
Location: DENVER, CO
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

127 customers mention "Treadwear"

  • 110 positive
  • 17 negative

Customers rate treadwear highly with most scores 8-10, praising durability on rugged terrain. Some report lower scores (0-6), citing uneven wear or reduced lifespan under heavy use.

March 27, 2019 (Verified Purchase)

4.7 out of 5 Star Rating
4.7 out of 5

...I rotate my tires every 5k and the wear pattern is perfect. AT 45k my last tires would have barely passed state inspection, but they would have passed.

This is my second set of tires. My first lasted 45000 ( however they were only rated to 40K at the time ) These are rated to 60K ! must be a new tire compound. I had no issue with them in the Pennsylvania winters before, and expect the same with these. Being a light truck tire - they are not quiet, but not over noisy either. At highway speeds the radio easily drowns out the road noise. I rotate my tires every oil change (5k) and the wear pattern is perfect. AT 45k my last tires would have barely passed state inspection, but they would have passed. I purchased new ones due to a planned vacation trip to Florida ( 2500 miles in a week ) and just wanted the peace of mind. You will be happy with these, I know I am !

Vehicle: 2006 Toyota Tundra Double Cab SR5 4wd
Miles Driven on Tires: 5,000
Driving Conditions: Combined Highway/City
Location: CRUCIBLE, PA
Driving Style: Average
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

May 18, 2020

4.5 out of 5 Star Rating
4.5 out of 5

...The tread wear is PHENOMENAL and there is ZERO road noise from these tires! I saw a review that someone got 100k out of these tires. I expect to get close to that...

These tires are FANTASTIC! I drive typically at relatively high speed (80+ MPH) on the highway. I have hydroplaning issues exactly twice in 30,000 miles and that was from deep ponding on the roadway. I slid a little with light snow over ice coming to a stop. Deep and light snow wasn't an issue except for the snow over ice storm. The tread wear is PHENOMENAL and there is ZERO road noise from these tires! I saw a review that someone got 100k out of these tires. I expect to get close to that.I drive fast and live in the pothole capital of the world, NJ. Off road they are great too. Not perfect for every terrain but also not bad at all terrain's. Air down/air up and they will get you out with some throttle input. I wanted BFG AT's but they weren't in stock in my size at the time of purchase. I am absolutely NOT AT ALL disappointed in these tires. I am going to get a set for my daughters 4 Runner! I can not say enough good things about these tires. PS; I have Load Range E 265/75/16 on a Tacoma compared to stock (base model) 245/75/16. They fit perfect and do not rub.

Vehicle: 2013 Toyota Tacoma 4wd Access Cab
Miles Driven on Tires: 3,000
Driving Conditions: Mostly Highway
Location: DENVILLE, NJ
Driving Style: Spirited
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

January 10, 2022

5 out of 5 Star Rating
5 out of 5

This is the second set of these tires I've had on this truck and am about to buy a third set. If you keep these tires rotated as I have they will FAR surpass their warranty mileage...

This is the second set of these tires I�ve had on this truck and am about to buy a third set. If you keep these tires rotated as I have they will FAR surpass their warranty mileage. My first set was ran for quite some time on bad ball joints as well and still cleared the warranty mileage. No road noise, good in snow, I do a lot of towing and just haven�t had one complaint. I was always against Cooper tires because of one past bad experience but as far as light truck tires go this is the only tire I�ll buy. Great value for the money!!

Vehicle: 2009 Dodge Ram 2500 SLT 4WD Mega Cab
Miles Driven on Tires: 80,000
Driving Conditions: Combined Highway/City
Location: ODELL, IL
Driving Style: Easy Going
Was this review helpful?
Yes No
You found this review helpful.
You did not find this review helpful.
Updating...
This is your own survey.

While you can't rate your own survey, you can:

Consumer Reviews

Media Gallery

Testing On-Road All-Terrain Tires 2021: Cooper Discoverer AT3 LT (2:11)

The Discoverer AT3 LT is a popular option in On-Road All-Terrain tires, so we tested it against some of the best in the category to see how the performance stacks up.

Read the Full Test Report

SERVICE WITH A SMILE

Need help choosing the right products for your vehicle? Our US-based team of highly trained experts has the knowledge and passion to help. Just pick up the phone and give us a ring. Or let's chat via email. We love solving problems and lending a hand (or an ear).

Contact Us
Three smiling Tire Rack employees