Cooper Discoverer AT3 LT325/65R18 E/10PR WL Tires
Cooper Discoverer AT3 tire is an all-season, all-terrain tire. It is designed to offer unparalleled durability when on rough roads. It comes with a tread design to offer a comfortable and noise-free ride.
Performance rating out of 10:
- Tread Life: 8.2
- Performance on dry surface: 7.6
- Performance on wet surface: 7.5
- Snow/ winter performance: 8.4
- Fuel Efficiency: 7.6
- Noise: 8.5
- Traction: 8.1
Best-suited for: Trucks, SUVs, and van.
- Durable Tread Technology protects against extreme wear when hauling heavy loads.
- Even Wear Arc Technology balances pressure at the tire-to-road contact area, enabling superior handling and even wear.
- Whisper Grooves provide a quiet and comfortable ride.
- Stone Ejector Ledges protect the tire by expelling stone and gravel and keep the tread clear for better road grip.
- Silica-based tread compound provides improved traction in wet conditions without compromising tread life.
- Mud & Snow (M+S) rated tire.
|Size||Load Index/ Speed index||UTQG||Ply Rating||Overall Diameter||Section Width||Rim Width Min||Rim Width Max||Rim Width Meas||Tread Depth (in)||Max Single Air Pressure (PSI)||Max Single Load (lbs)||Max Dual Air Pressure (PSI)||Max Dual Load (lbs)||MFG #|
This describes the sidewall appearance. Examples include Black Sidewall, White Sidewall, and White Letters.
The load index (LI) is a 2 or 3 digit number that corrolates to the maximum amount of weight the tire can carry. For example, a tire with a load index of 87 indicates that the tire can carry a maximim load of 1,201 lbs. In the case of our example the 87 identifies the tires ability to carry a maximum of 1,201 lbs. So 4 tires will carry a maximum of 4,804 lbs. Refer to your vehicle owner's manual for the recommended minimim Load Index. It is not recommended to install tires with a lower Load Index. By doing so, this could cause your tires to be overloaded thus potentially causing a blowout.
Speed Ratings (SR) are based on laboratory tests and indicates the maximum speed the tire can achieve. These tests are based on limited time trials. Higher speed rating tires typically will yield better handling capabilities, but may often result in lower mileage. Refer to your vehicle owner's manual for the recommended minimum Speed Rating. It is not recommended to install a tire with a lower speed rating as it could affect the handling of your vehicle. It is important to note that speed ratings only apply to tires that have not been damaged, altered, under-inflated or overloaded. Additionally, most tire manufacturers maintain that a tire that has been cut or punctured no longer retains the tire manufacturer's original speed rating, even after being repaired because the tire manufacturer can't control the quality of the repair.
Ply Rating is related to the max load capacity. This value can be defined with a letter or number. The higher the number/letter, the higher the load capacity.
To help consumers evaluate their tires, the U.S. National Highway Traffic Safety Administration (NHTSA) created the Uniform Tire Quality Grading System (UTQG). The UTQG rates tires are rated on their tread-wear, traction performance, and temperature resistance. The grade for each of these can be found on the sidewall of your tire (except for winter tires and certain light truck tires). Click here for more information.
|Max Single Load(lbs)||3860||The maximum load this tire will support. Remember to multiply this number by the number of tires installed on your vehicle to get the maximum carrying capacity. This number is directly related to the Load Index.|
|Max Single Air Pressure(PSI)||65||The maximum air pressure this tire will support. This does not represent the amount of air pressure your tires should have at all times. Consult with your owner's manual to determine the best air pressure you should use for your vehicle.|
|Tread Depth||16.5||The amount of tread on the tire. Once the tire is worn to 2/32nds, it is considered fully used and should be replaced at that time. Most tires will have tire indicators in the grooves of the tire to help you determine when the tires are worn down to 2/32nds.|
Nondirectional - most common, same tread pattern on inside & outside of the tire. Can be rotated to all four corners of vehicle. Asymmetrical - tread pattern is different on the inside to the outside of the tire, and must be mounted properly. Can be rotated to all four corners of the vehicle. Directional tires - roll in only one direction, must be mounted properly. Once mounted they must remain on the same side of the vehicle, and only be rotated front to rear.
|Rim Width Range||9.0-12.0||The approved wheel rim width range this tire will support.|
|Measured Rim Width||9.5||The recommended wheel width as recommended by the tire manufacturer to get the best wear us performance for this tire.|
|Section Width||13.0||The measurement from sidewall to sidewall.|
|Tread Width||10.59||The measurement from one side of the tread to the other side of the tread.|
|Overall Diameter||34.61||The height of the tire when fully inflated.|
|Manufacturer Part Number||90000019982||Manufacturer part number (sku)|
Shipping rates and estimated delivery times are available on tires after setting your delivery zip code. Tires ship via FedEx Ground and the shipment times are a very good estimate, although not an exact number of time-in-transit days. Tires are delivered Monday - Saturday. FedEx does not pick up orders on weekends or certain holidays. Once the tires are picked up, the time-in -transit estimate begins. If you place your order Friday afternoon, or on the weekend, your tires it will not ship until the following week. Currently we only offer FedEx Ground, expedited shipping is not available. Depending on when you place your order, there may be one, possibly two days of processing time. Shipping delivery times can be impacted by weather events across the country.
You can choose between 3 delivery options:
- 1. Your tires can be delivered directly to your billing address.
- 2. Your tires can be delivered to an alternate address. In this case, please specify the delivery address and the person authorized to receive the tires on your behalf.
- 3. The tires can be delivered directly to a Tire Installer of your choice. Please enter the address of the Tire Installer in the "Ship To" address and be sure to coordinate acceptance of your shipment from Tires-easy.com.
You will receive an e-mail confirmation of the transaction when you place your order. Please save a printed copy of your order confirmation for your records.
We accept American Express, Visa, MasterCard, Discover, PayPal and Affirm Tire Financing.
See General Terms and Conditions for additional Return/Refund details
These tires are quiet on the highway. Put them to the test on our very rocky west Texas deer lease and they have resisted punctures very well so far.
The price for the tires were amazing! Awesome set low road noise especially great in a lifted 4x4. Great in any weather would buy again!
Easy transaction, great price Cooper Discoverer AT3 30X9.50R15
Cooper Discoverer AT3 30X9.50R15 Look good ..very low noise, ride smooth and quite ...Very Happy with purchase.
Glenn in Nashville TN
Purchased a set of 30x9.50x15’s for my lifted Jeep XJ. Great tires for the price. I didn’t expect these to be that good in the snow...was I wrong! These work extremely well in the snow. Even my buddy was surprised how well my Jeep did in bad weather.
Bryan 2000 XJ
I got my money's worth
Great LT tire rolls smooth i recommend this product
Great all season and off road tires.
The Cooper Discoverer AT3 tires wear well and perform well in all conditions. I've had a set of 4 of these for 26 months on my daily driver. Mostly street and highway use with some off road driving in the Summer. I still have plenty of tread to get me through this winter and well into the Summer next season. That will be 3 years of use before I may need to change them. They do well in rain, snow and ice conditions. Recommend these over other comparable brands. The price point alone is enough to encourage that but the performance is more than equal to other more expensive brands.
The tires are great
Haven't put a lot of miles on these tires yet, but so far they are meeting all expectations. And purchasing transaction went smooth, with quick shipping. Would recommend.
Quiet, ride nice, good grip.
:Discoverer AT3 Size:LT225/75R16
I put four of these on a 2016 Ford Transit 350 DIY camper conversion. They work GREAT in the snow. I just got back from a 3000 mile winter western trip. Western Kansas they closed the roads because of blizzard conditions. Once the wind died down to 30 from 50 mph. I drove on through. Colorado & New Mexico mountains in 2 - 6" of unplowed mountain roads no issues. This is my second set, I have them on an '03 Tacoma double cab. Driven many of the 4X4 passes in the San Juans. Held up well, no chips, chunks, or flats.
Camper Van Driver
Great tires, even better price!!
Got these installed on my wife’s Grand Cherokee and what a difference!! We went on a road trip to New Orleans the following week and had little to no road noise. Highly recommend these!!
Fast shipping, great price and product.
Quiet. Smooth ride. Great in the snow. Looks like it would be decent off road too. Hoping for good milage. Looks awesome on my Astro van
Very good tires for my light-medium truck.
High traction, stability for wet road driving on Interstates/Highways in the LA/TEX/MISS USA. No loud hum tire noise at highway speeds. OK for some off-highway, dirt roads and pasture land. My truck is a Dodge Dakota Quad Cab w/a small block V-8 engine, single rear traction. Usually get 35-45K miles on my 3rd set of these tires but I change early due to lots of highway driving.
I had a good experience. Tires arrived in a timely manner, exactly as expected. Thank you
Great tires will order again.
Great tires will order again.
These are great tires
Great tires and the very same that I paid double for at the tire shop in the past.
Great tires and value
Cooper tires preform terrifically. Good traction and control.
Love my new tires
Performance is great. Looks good on my 2013 black Nissan Frontier 4x4. Smooth on the highway and great traction on the farm. Can't wait to take them hunting.
The tires are great and the ride is fantastic. They were an excellent value.
Great tires! They always last a long time!
great tire company
i have been buying tires from this company and it's always been a great experience, great price.
Great bang for the buck
Nice tires and a great buy. Alot ot meat on them and handle great on pavement and gravel so far. Hope they are just as good in the snow and ice this winter.
Tires are smooth and quiet for such an aggressive tread. Excellent wet and snow traction! I would definitely buy them again.
This is my 6th set of Cooper at3s
I've been extremely satisfied with Cooper at3s. Had them on everything I own. From Saturn Vue awd to a Dodge 1 ton Deisel. They run quiet, give decent mileage and have never had a problem.
These tires are awesome!
Great wet traction in light to heavy rains especially with speeds up to 135 mph!
2010 escape limited
Just got 8in of snow these tires are amazing they spun a little but never got stuck. Also have these tires on my f150 fx2 what can I say these tires are great. No road noise great traction wet dry snow. Both my vehicles are 2wd no issues.
So far these tires have been great.
They are quiet, and ride very well for the aggressive tread. They handle well on dry pavement, wet pavement and in the snow and ice. Great tire for the money. I hope they continue to hold up well.
Recently bought for 06 Jeep Grand Cherokee. Have not had any problems. Would buy again.
I replaced my Michelin Defender LTX M/S on my Ridgeline. These are great. No difference in mileage, only the tiniest of hummmms is added. I fish and hunt a lot in North Dakota through mud, dirt, deep snow and ice. Good traction in all scenarios. I’ve put a few thousand miles on them in a few months, no noticeable treadwear at all. I have nothing negative about these tires.
Great Tires 2007 Jeep Grand Cherokee 60,000 miles
Great Tires at any price and great in the snow and rain. No noise
Ryan @ Apex NC
Super tires for a great price would buy them for all my vehicle's
Cooper LT tires
These tires are fantastic!
So far these tires have performed well beyond what I had imagined. From the ride, to running them in rain and snow. A great tire. Will buy again!
Love this tires
Great all round tire with deep tread
These Cooper AT3 tires are quality rubbber. These are my second set of these tires. The first set were amazing value as I got 130k out of them with a significant amount of that mileage towing a large caravan and touring on rough outback roads. Looking forward to similar wear and performance out of this new set.
tires for 2012 toyota pickup
great tires little road noise great looking tires would buy again
These tires are great.
I like the looks of the tires, they handle well on the road and I'll find out if they handle good in snow tonight going from work to home, Thank you for helping me.
I love my tires. Even tho there are snow tires, i still haven't removed them off yet.
Very good light pickup truck tire
Good all around tire for highway and off road. Wears well and good looking tire.
Smooth ride and have held up great so far. Great price for what I put in my truck. I would buy again.
An excellent buy for the money
Cooper tires are always a good choice. These AT3 tires were installed on my GMC Sierra 1500 and work very well. Good deep tread, and no road noise. Nice responsive handling and great traction. I already know I will get long life from them and I also run Cooper tires on my 1946 Ford Coupe. I have been a Master ASE mechanic for over twenty years, so to be impressed by a tire brand takes some doing. Comparable to tires at twice the price, and by far better than tires in their price range. I have yet to be disappointed by any tire Cooper makes.
John, an ASE Master Technician
So far so good. Not too noisy and drive out very well.
Superb wet asphalt traction. Happy so far.
Love these tires they ride great
Great price for these tires will buy all my tires from you ride good not noisy and price is great
I found the transaction very simple, delivery was as promised and the value was well worth the trouble of finding someone to mount and balance. Will definitely buy my tires here in the future.
Only have had them 2 months, but so far they are proving to be a decent tire.
These tires are wonderful
This is the first time purchasing these Cooper Tires and they are fabulous good traction on wet roads and snowy roads and they ride very well feels like you're riding on a cloud I would definitely recommend these tires
These tires are are good tire for pickup.
Great tires for a great price.Use these guys alot.
this is my third set and they have worn and provided good ride every time.
Great tires highly recommended!!!
Excellent in snow.low on noise. Good control. Great value. 3rd set and continue to be satisfied.
handling is phenomenal Great Looks and durability
I'm impressed with Cooper AT3. I've been at toyo fan for a while not anymore. TX
Good all around tire!
So far seems to be a good tire. Smooth ride good traction. Looks good. Haven't had them long so not sure how many miles I'll get out of them but as long as the bold up I would buy again.
These tires seem to be good tires so far.
tires seem to have good traction and they are quiet on the highway.
These tires are like riding on slippers.
Very quiet and economical.
Great tires. Cooper has always performed the best for me and these are no different. No matter what they perform.
This is the second set of these tires I have had. First set did great so decided just to keep same when it was time to buy again
Just what I needed
Tires are great they have a rugged look and great tread I am pleased with these tires
truck handles great
so far these tire are great not too noisy the truck handles great and rides better then the stock tires
They're the best.
Ride smooth, great all around traffic. Real quality tires
Jorge Jesus Zuniga
Tires are great
Will be ordering another set of these tires agian
The best tires I have ever owned.
The best price hands down, customer service was easy and great to deal with. I would recommend them to everyone.
Great tires for my 2016 Chevy Colorado. They look great and not alot of road noise. I highly recommend them to anyone.
I have these on a Titan XD and they are doing great so far. They ride smooth and they are very quiet. I only have about 3k miles on them but I think they will last a long time.
I have really enjoyed these tires. Low road noise and good handling.
I would never buy another kind of Tire to go on my 08 Jeep Grand Chero
Best tire for my mid size SUV, smooth ride for the road and off with great tread life especially for an all-wheel drive