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Last updated 6/20/2024 - Originally published 6/20/2024
Written by SimpleTire
Yokohama and Cooper have a long history of manufacturing high-quality tires, passing through stringent tests before making it to the dealerships. While Yokohama is a standalone brand, Cooper is a subsidiary of Goodyear Tires. Whether all-season, all-terrain, winter, UHP, mud-terrain, or rugged terrain, they offer tires in all categories for passenger cars, minivans, CUVs, SUVs, and light trucks. The Geolandar A/T XD and Discoverer AT3 LT are their popular all-terrain tire lines for full-size pickup trucks, commercial vans, and medium to heavy duty trucks.
The Yokohama Geolandar A/T XD and Cooper Discoverer AT3 LT offer enhanced traction, grip, superb handling and durability, and a decent tread life. Despite serving the same purpose both tires have different design languages, with the Yokohama being more aggressive. So, which is the best tire to go for between the two? Let’s compare Yokohama Geolandar A/T XD vs Cooper Discoverer AT3 LT based on our SimpleScore scoring mechanism to know which one is the best between the two.
Yokohama Geolandar A/T XD tires
Introduced in 2023, the Geolandar A/T XD is a commercial-grade all-terrain tire for full-size pickup trucks and commercial vans. Delivering all-weather performance, the Yokohama is laced with GEO-SHIELD technology, which features a full nylon cap, a 3-ply sidewall, and a high turn-up carcass for enhanced grip, traction, and durability. Protecting the tire from lateral impacts is the sidewall armor that also lends the tire a bold and rugged look. With an excellent void-to-lug ratio, the Geolandar features hundreds of wavy sipes that offer fantastic traction in dry and wet, and the option of installing #15 studs elevates grip in deep snow. The Three Peak Mountain Snowflake certified tire comes with a wide, flat profile that optimally distributes the driving pressure and maximizes even wear.
Boasting an overall SimpleScore of 8.5 out of 10, the Yokohama impresses with its traction, grip, durability, handling, and longevity.
Cooper Discoverer AT3 LT tires
Launched in 2018, the Discoverer AT3 LT is an all-terrain tire, meant for medium to heavy-duty trucks. Featuring Durable-Tread technology, the Cooper tire offers improved tread wear and withstands the difficulties of tackling gravel and dirt. While the new cut and chip-resistant rubber compound boosts performance and durability on uneven terrain, Whisper Grooves Technology reduces noise levels for a quiet and comfortable ride. This Three Peak Mountain Snowflake certified tire offers excellent performance in dry, wet, and moderate to severe wintry conditions. Stone ledges eject stone and gravel to provide consistent traction and enhanced durability. Unlike the Geolandar A/T XD, it comes with a 60,000-mile limited manufacturer tread life warranty.
With a SimpleScore of 8.4, the Cooper tire offers enhanced grip, traction, durability, handling, and longevity on and off the road.
Yokohama Geolandar A/T XD vs Cooper Discoverer AT3 LT tires on traction
Traction forms the basis of a tire as it ensures that it remains on the road without skidding. Regardless of the tire category, it is always a critical characteristic of any tire.
With an 8.3 traction score, the Geolandar A/T XD features an aggressive tread pattern with dense wavy sipes and an optimal void-to-lug ratio that boosts grip and traction on difficult terrains. The Three Peak Mountains Snowflake certification with the optional studs ensures the tire offers gripping winter performance. The sidewall armor of the Yokohama also aids in improving traction besides enhancing the bold appearance.
Boasting an 8.5 in traction, the Discoverer AT3 LT features deep and wide grooves for sailing over tough terrains like rocks, gravel, mud, or snow. While the sidewall-extending shoulders provide extra traction in challenging conditions, the stone ejectors resist the accumulation of stone, gravel, and debris to provide consistent traction throughout the year. It features the Three Peak Mountain Snowflake symbol, certifying its safe use in extreme winter conditions.
Beating the Yokohama, the Cooper wins the traction section by a small margin (0.2).
ADVANTAGE: Cooper Discoverer AT3 LT
Yokohama Geolandar A/T XD vs Cooper Discoverer AT3 LT tires on handling
Without adequate control on and off the road, a tire cannot be safe enough for long term use. At SimpleTire, we believe that handling the second most significant aspect of a tire.
Scoring 8.5 in handling, the Geolandar offers improved steering response thanks to the solid shoulder design with arrow-shaped blocks and a flatter profile. The optimized high-density rubber compound has a high volume of natural rubber that not only prolongs its service life but also promotes better control and steering responsiveness.
With an 8.6 handling score, the Cooper Discoverer AT3 LT features a new rubber compound that assures better grip and improved handling on and off the road. Whether highways, rocky terrains, or suburban roads, the Cooper promises fantastic handling thanks to the tough shoulder blocks. Even Wear Arc Technology enables it to deliver balanced on-road treadwear and improved handling.
It’s the second win in a row for the Discoverer AT3 LT as it beats the Geolandar A/T XD’s score by a whisker here.
ADVANTAGE: Cooper Discoverer AT3 LT
Yokohama Geolandar A/T XD vs Cooper Discoverer AT3 LT tires on longevity
No matter what, the tire that lasts long is usually preferred, provided it offers adequate traction and handling. Both tires claim to offer a long tread life, so let’s see why they claim so.
With a solid 8.7 longevity score, the Yokohama features an advanced rubber compound to resist cuts, chips, tears, and snags while improving the wearability of the tire. Riding on the GEO-SHIELD technology and sidewall armor, the Geolandar A/T XD safeguards the tire against punctures and impacts, so you enjoy an uninterrupted driving experience on and off the road. With mud and stone ejectors, the tire self-cleans its tread for enhanced traction and a longer service life.
On the other hand, the Discoverer AT3 LT receives a formidable 8.5 longevity score, featuring Durable-Tread Technology that helps resist gravel and rocks from chipping and cutting the tread. While Even Wear Arc technology allows even on-road tread wear, the stone ledges eject stones and gravel to protect the tire from damage. It comes with a 60,000-mile limited manufacturer tread life warranty- something that is not available on the Geolandar A/T XD.
Finally, the Geolandar A/T XD registered a win by beating Discoverer AT3 LT by 0.2 points.
ADVANTAGE: Yokohama Geolandar A/T XD
When to use each
All-terrain tires should be used when you frequently travel rough, rocky, or muddy roads. They feature reinforced carcasses and rugged construction for tackling these terrains while resisting cuts, chips, and snags. Unlike mud-terrain tires, all-terrain tires offer better on-road performance and reduced noise levels for a quiet and comfortable ride quality.
If you travel more on paved roads and occasionally on off-roads, highway terrain tires work the best for you, while if you frequently cross severe muddy areas, a dedicated mud-terrain tire should be ideal for your workhorse.
Which one should you choose?
In a nutshell, the Yokohama Geolandar A/T XD wins the race as far as overall SimpleScore is concerned (8.5 vs 8.4). However, the story becomes completely different when you look at their individual scores of traction, handling, and longevity. The Cooper wins the handling and traction section, while the Yokohama only manages to win the longevity part.
For a 225/65R17 tire size, the Yokohama Geolandar A/T XD costs $208 per tire, while a set of four tires cost $832. Contrarily, the Cooper Discoverer AT3 LT is tagged at $209 per tire and four such tires will cost $835. Given the minor difference in their prices ($4), the cost of a tire may not be a cause of concern for drivers looking to choose one.
Based on SimpleScores, you can choose the Yokohama Geolandar A/T XD if you:
- Drive vehicles like GMC Sierra 3500 HD, Jeep Wrangler, and Dodge RAM 2500 Power Wagon.
- Want a longer service life
- Prefer the more aggressive tire
You can go for the Cooper Discoverer AT3 LT if you:
- Drive vehicles like GMC Sierra 2500, Toyota Tundra, and Ford F-350
- Want a limited manufacturer tread life warranty
- Crave for better handling and traction
- Want a tire that brakes quicker than its competitors
Still not sure which tire to buy? Fortunately, SimpleTire is here to help, and our helpful agents are more than happy to assist you in selecting the right tire for your ride and budget.