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.
El Discoverer A/T3LT de Cooper pertenece a la categoría: Dentro/Fuera De Carretera Todoterreno y fue diseñado para conductores de picops, vehículos de trabajo y vehículos utilitarios deportivos (SUV, por sus siglas en inglés) grandes, que necesitan un neumático que proporcione la resistencia y durabilidad requerida para mantener sus estilos activos de vida. Fabricado para lidiar con tierra, grava, lodo y la jungla urbana, el Discoverer A/T3LT, combina destreza todoterreno con una comodidad agradable en carreteras y tracción durante todo el año, incluyendo superficies con poca nieve, lo cual le permite cumplir con los requerimientos de la industria en cuanto a nieve severa y le permite poseer el símbolo “tres picos montaña/copo de nieve”, 3PMSF (three-peak mountain snowflake symbol, 3PMSF).
La tecnología "Durable-Tread" combina un compuesto de caucho con sílice resistente a desgarros, con el patrón de la generación más reciente todoterreno del Discoverer A/T3LT. La tecnología "Even Wear Arc" de Cooper optimiza la forma de la huella para obtener una presión balanceada en el área de contacto, mejorando la maniobrabilidad y proporcionando un desgaste parejo. El patrón de la huella ha sido diseñado para mejorar la tracción sobre superficies mojadas, mientras que ranuras "Whisper Grooves" entre los bloques externos ayudan a reducir el ruido a través del ciclo de vida del neumático. Soportes para expulsar piedras ayudan a prevenir perforaciones y hendiduras alternadas en la parte exterior de los hombros, proporcionan tracción en rocas, lodo espeso y superficies sueltas. Canales circunferenciales anchos y ranuras laterales profundas mejoran la resistencia al deslizamiento sobre agua (hydroplaning), mientras que múltiples ranuras pequeñas tipo zigzag en los bloques de la huella, crean la cantidad de bordes adherentes para proporcionar tracción sobre superficies resbalosas. La tecnología "Snow Groove" utiliza bordes con dientes serrados para atrapar nieve en la huella para mejorar la tracción nieve con nieve.
La construcción interna del Discoverer A/T3LT cuenta con una estructura robusta de dos capas de poliéster. Una capa de refuerzo de nailon por encima de dos correas de acero de gran fortaleza, aumenta aún más la durabilidad y la respuesta al girar el volante, además de proporcionar estabilidad a velocidades elevadas.
Nota: Mientras los neumáticos no identificados para su uso en invierno, pero con el símbolo tres picos montaña copo de nieve, 3PMSF (Three-Peak Mountain Snowflake, 3PMSF) podrían proporcionar mayor tracción longitudinal en nieve, que la ofrecida por neumáticos para toda estación (M+S) sin el símbolo 3PMSF. Sin embargo, ninguno iguala la capacidad de un neumático verdaderamente para invierno, en climas con condiciones adversas.
Specifications shown are as accurate as possible based on the information provided to us by the tire manufacturers. The dimensions reflect average values for tires measured on the specified measuring rim width. Individual tires may vary from data shown.
All tires are subject to continuous development. The tire manufacturers and Tire Rack reserve the right to change product specifications at any time without notice or obligation.
*Although regularly updated, the country of origin for tires may vary from what is shown. Unfortunately, we cannot accommodate requests for tires with a specific country of origin.
For assistance selecting products for your vehicle, please contact our sales specialists at 888-541-1777 or via email.
Warranty summary for replacement tires purchased on or after 06/01/24(1 of 6)
Treadwear:6 Years / 60,000 Miles Half mileage for rear if different size than front
Manufacturer Special Warranty:45 Day Road Test Guarantee (1)
Additional Information:(1) Exchange for another Cooper brand tire
Notes
See official manufacturer's warranty brochure for specific details.
New vehicle Original Equipment tire warranties often differ from those covering replacement tires. Consult your vehicle documents to confirm Original Equipment tire warranty coverage.
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.
Feedback consistently shows the Bridgestone Alenza AS Ultra delivers excellent comfort with smooth ride quality and low noise, scoring 8-10 in most ratings. Treadwear receives strong praise for longevity, though a few reports mention rapid wear. Winter traction impresses in snow and slush, with scores 8-10, though some note reduced confidence on ice. Wet grip and hydroplaning resistance are consistently rated 8-10, while dry traction stands out as a highlight with near-perfect scores. While most drivers report high satisfaction, a small number express concerns about uneven treadwear and occasional winter limitations, aligning with its intended use as a crossover/SUV touring all-season tire.
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Customers Like:
301 customers mention "Wet Traction"
282 positive
19 negative
Most customers rate wet traction highly with scores of 9-10, highlighting confident grip and hydroplaning resistance. A few note slightly lower performance in heavy rain, but overall satisfaction is strong for all-season use.
October 26, 2022(Verified Purchase)
4.3 out of 5
...These Bridgstones have been great in the rain on curvy mountain roads. Never hydroplaned. No problem on wet dirt forest roads either...
Replaced worn out Michelin tires. These Bridgstones have been great in the rain on curvy mountain roads. Never hydroplaned. No problem on wet dirt forest roads either. Track very well on the highway and bumps and imperfections are a once and done. No "extra" vibration" that some tires have when hitting uneven expansion joints , etc. I have many uneven brick streets in my city, and the tires do well on those horrible surfaces.3 I had them rotated after 7K miles and wear seems very even and minor with my all wheel drive SUV. If they continue to perform like this and wear evenly to 35-40K miles, I will purchase again. I was going to go with a more performance oriented tire, but these have never complained or felt unstable on any mountain highway curves, and I enjoy mountain roads and drive briskly. Run about 37 lbs per tire cold. Braking seems strong and has never caused alarm on quick highway stops. Tires can be so hit and miss on different vehicles, and I'm very happy with my purchase. size 235/50/19
Vehicle: 2013 Mercedes-Benz GLK350 4MATIC Miles Driven on Tires: 9,000 Driving Conditions: Combined Highway/City Location: SAINT PETERSBURG, FL Driving Style: Average
...They are way better than the OEM tires and are excellent in the rain. Prior to these tires, my Jeep would fish tail going into a jug handle but now, I cannot get my Jeep to slip or slide in the rain.
These tires are excellent. They are way better than the OEM tires and are excellent in the rain. Prior to these tires, my Jeep would fish tail going into a jug handle but now, I cannot get my Jeep to slip or slide in the rain.
Most customers rate winter traction highly, with snow and deep snow scores often 9-10. Ice performance is strong overall, though a few lower ice scores (4-6) exist. The Alenza AS Ultra delivers confident grip in winter conditions, aligning well with its all-season design for crossover/SUV use.
September 27, 2021
5 out of 5
...I'd previously had a set of Bridgestone Dueler H/L Alenza Plus on my prior XC90, and I was very happy with them (the most satisfactory tires I've yet owned prior to these) but I wanted improved winter performance. These are exactly what I had in mind, with improved focus on winter performance from the tread design without compromising other characteristics...
I bought these to replace a mixed set of tires that I was dissatisfied with that came on my XC90 V8 that I got last year. I'd previously had a set of Bridgestone Dueler H/L Alenza Plus on my prior XC90, and I was very happy with them (the most satisfactory tires I've yet owned prior to these) but I wanted improved winter performance. These are exactly what I had in mind, with improved focus on winter performance from the tread design without compromising other characteristics. Somehow they're just as quiet - if not quieter - than the Dueler H/L Alenza Plus! Most notably they seem to have a more-subdued tone over road imperfections. Like the Dueler H/L Alenza Plus, they are almost eerily quiet driving around parking lots. You can definitely tell they're related to the Bridgestone QuietTrack, Turanza Serenity, and Dueler H/L Alenza Plus for their noise control. Perhaps Bridgestone could have called them Alenza QuietTrack just for branding similarities, even if QuietTrack is more for cars. One of my favorite things with the Dueler H/L Alenza Plus was that they were very comfortable, as befitting a luxury-focused vehicle. Even though these are on bigger wheels than my previous XC90, these Alenza AS Ultra are just as comfortable as the Dueler H/L Alenza Plus, with minimal transference of minor road imperfections. Dry grip is very good, and I have greatly increased confidence over the half-mixed set of Bridgestone Dueler HL400 (OEM tire) and Goodyear ComfortTred Touring that these replaced on my vehicle. My sole critique so far is that they don't look as special/unique as the Dueler H/L Alenza Plus, which I can pick out from a short distance on a parked vehicle in a good way. However, I'll gladly sacrifice style for improved noise and ride comfort and safety, since I can't look at the tires when I'm driving. I look forward to updating the review when I actually get some practical experience in winter conditions.
Vehicle: 2007 Volvo XC90 V8 AWD Miles Driven on Tires: 1,000 Driving Conditions: Combined Highway/City Location: SAINT LOUIS, MO Driving Style: Spirited
I have driven through two Michigan (lake effect) winters with no issues...
I have been a loyal Michelin (BFGoodrich) person for the most part. I was disappointed over the handling of the last set of Comp T/As. I gave it another chance and bought the CrossClimates. My wife liked the look and grip but was unhappy with the noise of a directional tire (an Audi Q7 is only 1k lighter than a 1/2 ton Suburban). Q7''s are hard on tires to begin with. Back to the drawing board, turned the tires back in and bought the Alenza A/S. These tires have been great in dry and wet conditions. They are quieter and the ride is more transparent than the CrossClimates. I have driven through two Michigan (lake effect) winters with no issues. I will buy a set of these for my MKT before winter hits.
Vehicle: 2017 GMC Sierra 2500 HD 4wd Crew Cab Miles Driven on Tires: 13,500 Driving Conditions: Combined Highway/City Location: PORTAGE, MI Driving Style: Spirited
I live in the South but I drove my BMW X5 X 35D throughout in the snow for three days in the Western Michigan in November. Good traction and good braking in one foot snow...
I live in the South but I drove my BMW X5 X 35D throughout the snow for three days in the Western Michigan in November. Good traction and good braking in one foot snow . A little bit noisier on the dry Interstate than the Continental DWS I owned before but I kind of expected that considering the 800 thread wear. My BMW has the staggered wheels so I cannot rotate the tires but if I get 40000 miles out of these tires I will definitely buy a new set . None of my tires previously owned lasted more than 25000 miles.
Vehicle: 2017 BMW X5 xDrive35d Miles Driven on Tires: 2,000 Driving Conditions: Combined Highway/City Location: GREENVILLE, SC Driving Style: Average
Customers overwhelmingly rate the Bridgestone Alenza AS Ultra's dry traction as excellent, with most scoring 9s and 10s. High marks highlight responsive handling and confident grip, aligning perfectly with its Crossover/SUV Touring All-Season design. A few 7-8 scores suggest minor variability, but overall performance excels in dry conditions.
March 23, 2023(Verified Purchase)
5 out of 5
...Ride is very Smooth I can't believe it for 22" wheels. Cornering is good and goes straight down the road with now drifting at all like the Goodyears did...
Love these Bridgestone Alanza ultras! I have never written a review about tires, or much of anything, but these are worth telling you about. I had the 20” stock basic Alanza A/S Bridgestone originally when I got the truck, Good tires, had good fuel milage with them and nice riding but tread pattern was not good for snow. Then got 22” wheels and had the stock Good years on them. They were horrible! All over the road! tread pattern was worthless in snow (just 4 groves around the tire like a slick tire - not really any pattern) .... Did not seem like a smooth ride.
These new Ultras are the best I’ve ever had on any of my 8+ cars and trucks I have owned. In I have been thru allot of tires. (I know allot of people say that about other tires too) Ride is very Smooth I can’t believe it for 22” wheels. Cornering is good and goes straight down the road with now drifting at all like the Goodyears did. Noise level is great, hear wind noise not the tires. As for tread ware, only 2K miles on them so N/A. Fuel milage seems to have increased from Goodyears Not much time on snow, had them in about 3” of snow and did really good. (has a great tread pattern) All in all Great tire with new technology built in.
I always use tire rack to research tires and read reviews, but this is first purchase from Tire rack, great experience - one day delivery direct to Monro and they only charged $95 to install 4. I had never purchased from tire rack because i thought the install price would be hundreds. I guess not the case at all. and they have a hazard warranty, I think.
Vehicle: 2020 RAM 1500 4WD Crew Cab (6 Lug) 285/45-22 Miles Driven on Tires: 2,000 Driving Conditions: Mostly Highway Location: OWEGO, NY Driving Style: Average
...They handle much better, sound better, brake better, and wear better...
The Bridgestone Alenza AS Ultra tires I purchased are much quieter than the previous Bridgestone Dueler's that came stock on my Infiniti QX-asoarus (big SUV!). They handle much better, sound better, brake better, and wear better. The Alenza tires transmit the small bumps more than the Dueler's, but it is not that bad. They are still muted, softened little bumps. The Alenza tires cost less here in California, than the Dueler's and they perform much better, IMO. If I buy another set of Bridgestone tires, it will be the Alenza AS Ultras.
Vehicle: 2019 Infiniti QX80 AWD Miles Driven on Tires: 600 Driving Conditions: Combined Highway/City Location: LAFAYETTE, CA Driving Style: Average
This has been a great tire so far on my Audi SQ5. Going to the 265 versus 255 OEM offered a lot more choices. The tire fit with no problem. I have had the pleasure of driving through some pretty heavy rain living here in Seattle. The tire worked great. I really like the cornering too. They may have a little more road noise than the OEM tires. I am very happy with the purchase and the recommendation from Tire Rack to choose these tires. Shout out to Omni Brake and Alignment for the installation and alignment of my SQ5.
Vehicle: 2018 Audi SQ5 Miles Driven on Tires: 500 Driving Conditions: Combined Highway/City Location: REDMOND, WA Driving Style: Spirited
Most customers rate comfort 9s and 10s, praising the smooth, quiet ride ideal for crossovers/SUVs. While a few note minor concerns, high scores highlight excellent noise reduction and refined handling in all-season conditions.
October 26, 2022(Verified Purchase)
5 out of 5
...Very comfortable ride, quiet and steering response is very good.
I’m so glad I picked Bridgestone Alenza AS Ultra even though there was not much reviews on the tire at that time. Very comfortable ride, quiet and steering response is very good. I don’t drive aggressively so I comment on hard and quick steering response but we recently drove portions of Diamond Back loop in North Carolina and did not encounter slips nor under steer going thru tight turns and hairpins. This tire is highly recommended.
Vehicle: 2015 BMW X5 xDrive35i Miles Driven on Tires: 8,000 Driving Conditions: Combined Highway/City Location: CHESAPEAKE, VA Driving Style: Average
I came from Nokian WRG4's that were getting a bit rough and noisy. The AS Ultras were way more quiet and comfortable...
I started off loving these tires. I came from Nokian WRG4's that were getting a bit rough and noisy. The AS Ultras were way more quiet and comfortable. They still are pretty quiet and comfortable, but I'm noticing some traction issues, particularly in the winter months. These tires perform about "average" for all season tires, which means there is plenty of slipping and sliding after you get past the very first winter season. Like most all seasons, they seem ok when nearly new, but get a little wear on them and the ice-skating begins. I have owned Blizzaks in the past, so I thought, heck these are Bridgestones and look pretty well siped, so they must have some of that Blizzak DNA, .... Nope. I would not place these in the same class as other good winter performance All Seasons, like the Conti CrossContact LX25.
Vehicle: 2012 Volkswagen Touareg TDI Miles Driven on Tires: 12,000 Driving Conditions: Mostly City Location: WATERTOWN, NY Driving Style: Average
...My main reason to choose this tire was to have comfortable tire that will be OK during light snow conditions in the winter...
Alenza AS Ultra is great tire for modern SUV. This is my second set on another SUV and I prefer it over many other tires tried so far. My main reason to choose this tire was to have comfortable tire that will be OK during light snow conditions in the winter. Given my driving style I may reach 35.000-40.000 miles before replacement, but it is much better than some of other quality brands I drove before. Warm recommendation to this tire, I can hardly recall any tire that would be so well rounded in all areas. Will buy again for sure.
Vehicle: 2023 Mercedes-Benz GLE53 AMG SUV 275/50-20 Miles Driven on Tires: 7,000 Driving Conditions: Combined Highway/City Location: LOS ANGELES, CA Driving Style: Spirited
Most customers rate treadwear 9-10, highlighting excellent longevity and consistent wear for Crossover/SUV use. While a few report lower scores, the majority praise its long-lasting performance in all-season conditions.
April 07, 2022
4.1 out of 5
...with an 800 UTOG, I am hoping to get 25k miles on this heavy high-torque vehicle as opposed to 20k from my previous set...
Compared to the Pirelli Scorpion All Season Plus that these tired replace, they are definitely quieter and slightly softer. They have smoothened out the ride and, with an 800 UTOG, I am hoping to get 25k miles on this heavy high-torque vehicle as opposed to 20k from my previous set.
The only negative is regarding steering feel; they waver a little, needing constant small adjustments to the steering wheel to keep them in the middle of the lane. However, this may perhaps be because they have a LOT more tread and slightly softer rubber, and this may self rectify with more wear.
Vehicle: 2014 Porsche Cayenne Diesel Miles Driven on Tires: 1,000 Driving Conditions: Combined Highway/City Location: HIGHLANDS RANCH, CO Driving Style: Spirited
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.
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