The Optimo H426 is one of Hankook's Grand Touring All-Season tires developed for Original Equipment (O.E.) use on sporty sedans. The Optimo H426 is designed to provide attractive looks, predictable handling and year-round traction, even in occasional light snow.
The Optimo H426 features a symmetric, independent-block tread design that uses an all-season tread compound to provide traction on dry, wet and light snow-covered roads. The tire's internal structure features twin steel belts reinforced by nylon to stabilize the tread area and a polyester cord body to help cushion the ride.
*Specific sizes featuring low rolling resistance technology are identified as such on the Sizes tab, as well as on the tire's Specs tab.
El neumático Optimo H426 de Hankook pertenece a la categoría: Gran Turismo Para Toda Estación y fue desarrollado para uso original (O.E., por sus siglas en inglés) sedánes deportivos. El diseño del Optimo H426 proporciona una apariencia deportiva, maniobrabilidad predecible y tracción durante las cuatro estaciones del año, inclusive con superficies con poca nieve.
La banda de rodamiento del Optimo H426 posee un diseño simétrico con segmentos de bloques independientes y utiliza un compuesto de caucho para toda estación que proporciona tracción sobre superficies secas, mojadas y con poca nieve.
La estructura interna cuenta con dos correas gemelas de acero reforzadas con nailon, para estabilizar la parte superior de la banda de rodamiento, además un cordón de poliéster ayuda a amortiguar el andar.
*Tamaños específicos con la tecnología de poca resistencia al rodar, son identificados en las páginas de Tamaños y Especificación.
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 01/01/23(1 of 7)
Treadwear:6 Years / 60,000 miles Half mileage front and rear if different sizes
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.
Feedback consistently shows the Toyo Open Country A/T III excels in dry traction (9-10 scores dominate) and wet performance, with strong hydroplaning resistance. Winter capabilities shine in snow and deep snow, though ice traction earns slightly lower but still positive marks (7-10 range). Drivers praise its rugged stability and responsive steering for off-road use, while ride comfort earns consistent 8-10 ratings. Noise levels are manageable for an all-terrain tire, though some note occasional hum. Treadwear receives widespread praise (8-10 scores), with many highlighting durability across mixed surfaces. This tire delivers confident performance in its intended off-road/all-terrain role, balancing aggressive capability with everyday drivability.
AI-generated from the text of customer reviews
Select to learn more
Customers Like:
475 reviews mention "Wet Traction"
441 positive
34 negative
Customers consistently rate wet traction highly, with most scoring 9s and 10s. The tire's hydroplaning resistance and reliable grip in wet conditions earn praise, aligning well with its all-terrain design for confident off-road and rainy driving.
July 31, 2025
(Verified Purchase)
5 out of 5
...Water traction is fantastic, I have no idea when people write it's not good. I have tons of sipping and drive careful and never had it slip...
This tire is simply incredible! I would buy again. It’s very quiet, almost difficult to even notice the sound unless I’m looking for it . I am driving a Standard load version, took about 1-2.5 oz to balance each tire! Butter smooth in the roads.It truly feels like a highway tire but with the advantages of the all terrain. I couldn’t be happier. Toyo made a great tire with this one. Sidewall looks cool and mild aggressive patterns. I super dig the style and tread. Water traction is fantastic, I have no idea when people write it’s not good. I have tons of sipping and drive careful and never had it slip. A+++ tire! It’s the best fit for my 2019 tundra I’ve ever found.
Vehicle: 2019 Toyota Tundra 4WD CrewMax Miles Driven on Tires: 1,000 Driving Conditions: Combined Highway/City Location: CLACKAMAS, OR Driving Style: Easy Going
I really like fact that the road noise is down to a minimum compared to the BFG KO2. It has much better wet traction also. I did notice that I lost some gas mileage, which is weird since I went from a E load rated tire to a C load rated tire. All in all I am very happy with my purchase.
Vehicle: 2021 Chevrolet Silverado 1500 4WD Crew Cab LT275/65-18 Miles Driven on Tires: 1,000 Driving Conditions: Combined Off Road/Highway Location: ST. CHARLES, MO Driving Style: Spirited
...Noticed much improved dry and wet traction with these Toyo OC ATIII versus the Firestone Destinations I've had...
Purchased these tires to replace the OEM Firestone Destinations on my Jeep Cherokee Trailhawk. Noticed much improved dry and wet traction with these Toyo OC ATIII versus the Firestone Destinations I've had. Looking forward to seeing how they do in the Pittsburgh winter this year.
Vehicle: 2019 Jeep Cherokee 4X4 Trailhawk Miles Driven on Tires: 1,000 Driving Conditions: Combined Off Road/Highway Location: LOWER BURRELL, PA Driving Style: Spirited
Winter traction receives strong ratings, with most scoring 8-10 for snow and deep snow performance. Ice traction shows mostly positive scores 7-10, though a few lower ratings indicate varied experiences in extreme ice conditions.
March 21, 2024
(Verified Purchase)
4.6 out of 5
...Headed north this weekend into 10"+ inches of snow without hesitation
Love them. Quiet and yet aggressive. Headed north this weekend into 10”+ inches of snow without hesitation
Vehicle: 2013 Ford F150 4wd Regular Cab Miles Driven on Tires: 1,000 Driving Conditions: Combined Off Road/Highway Location: RIO, WI Driving Style: Average
...I noticed in snow when turning into may begin to slide but straighten back up and it grabs immediately...
Off-road ability is great. I've had no problems with loose gravel, sand, and mud. I noticed in snow when turning into may begin to slide but straighten back up and it grabs immediately. For me I do anywhere between 500-2000 miles a month. From the starting 12.8 32nds depth having done about 7000+ miles im at about 10 32nds remaining. However, one of my tires are now starting to cause vibration. Looking back I think it was a bad tire because the amount of balance weight added to that tire was rather high compared to the other 3. Hoping I'm just a rare occurrence but will likely have to buy another pair to stop the vibration that one is causing.
Vehicle: 2023 Toyota Tacoma 4WD Double Cab Miles Driven on Tires: 7,000 Driving Conditions: Combined Off Road/Highway Location: MIDWAY, PA Driving Style: Spirited
...Traction in snow is excellent never had to put in four wheel drive yet.
Best purchase of tire I’ve brought by far. My 2006 Toyota Tacoma does not slide while making turns in rain. Traction in snow is excellent never had to put in four wheel drive yet.
Vehicle: 2006 Toyota Tacoma 4wd Miles Driven on Tires: 3,000 Driving Conditions: Combined Off Road/Highway Location: YONKERS, NY Driving Style: Average
Customers overwhelmingly rate dry traction as excellent, with most scores 9-10. The tire delivers confident grip and stable handling in dry conditions, performing superbly as an off-road all-terrain option.
August 05, 2025
(Verified Purchase)
Not Yet Rated
I have been happy with the performance of these tires...
I bought a set of used Toyo tires, due to wanting the Jeep 392 wheels they were mounted on. They still had fair/good even tread. With winter coming on at the time, I wanted a new set of treads. Since I was impressed with the style, tread depth, weight of tire, and low noise, I decided to buy a new set of these Toyo Open Country AT III's. I've done mostly highway/city driving , one winter trip in the mountains, and some minor off road at farms/parks but nothing that any tire would have issues with. I have been happy with the performance of these tires, I would like to see how they handle more off road conditions and time will tell on that. I was in a heavy downpour recently on a trip and didn't notice any hydroplaning at speeds up to 50-60mph, there was quite a bit of water on the highway at that time, and for safety I did lower speeds in some of the tighter mountain curves, while everyone else was traveling slower. Great set of tires so far. I also like the 11.5 width keeping the tire within the fenders so I'm not flinging dirt and rocks on my doors and at others.
Vehicle: 2021 Jeep Gladiator Mojave Built On Or After 6/21 Miles Driven on Tires: 9,000 Driving Conditions: Combined Highway/City Location: Millsboro, DE Driving Style: Average
...On road I've got no complaints. I was even surprised that there was very little road noise...
Purchase these tires for my trail hawk and so far I'm extremely happy with my purchase. I've only had them for a few months so we will see how they rate once I get more time to play with them. Cosmetically, they're exactly what my Jeep needed. Functionality wise, so far so good. Had a chance to take them out in a muddy farm field and they worked like a charm. On road I've got no complaints. I was even surprised that there was very little road noise. Can't wait for the snow to start flying and see how they hold up to the weather in the NE.
Vehicle: 2021 Jeep Grand Cherokee 4X4 Trailhawk Miles Driven on Tires: 500 Driving Conditions: Combined Off Road/Highway Location: ROCHESTER, NY Driving Style: Spirited
Customers overwhelmingly rate the Toyo Open Country A/T III's ride comfort 9-10, with noise levels mostly scoring 7-10. Excellent performance for all-terrain use, delivering smooth handling and reduced vibrations on rugged surfaces while maintaining impressive cabin quietness for its category.
May 29, 2023
(Verified Purchase)
5 out of 5
I am pleasantly surprised that they are even quieter than my previous tires and the ride is so much smoother...
I replaced my 4 Michelin tires which had 40Kmiles even though the tread was still 5/32", within safe limits. But I wanted a better tire for the snowy weather here in Buffalo NY. These Toyo tires are much more aggressive in snow but I was worried that they would be noisy. I am pleasantly surprised that they are even quieter than my previous tires and the ride is so much smoother. Also I noticed easier cornering and steering in general. I love these new tires and looking forward to how they handle in the winter.
Vehicle: 2001 Toyota Tacoma PreRunner Miles Driven on Tires: 100 Driving Conditions: Combined Highway/City Location: NORTH TONAWANDA, NY Driving Style: Average
Customers consistently rate treadwear as excellent, with most scoring 9s and 10s. The Open Country A/T III demonstrates rugged durability and long-lasting performance in all-terrain conditions, aligning perfectly with its off-road design intent.
July 01, 2025
(Verified Purchase)
3.9 out of 5
This tire... seems to wear well
This tire seems to be an attractive addition to the stock tires and does not degrade performance actually gives a smoothie ride and very little road noise Overstock substantially increase traction I say it's an overall good tire and seems to wear well
Vehicle: 2019 Ford Ranger 4X4 Supercab Miles Driven on Tires: 23,000 Driving Conditions: Mostly Highway Location: SALINEVILLE, OH Driving Style: Average
...That being said I have just a touch over 60,000 miles on these tires & they do still have decent tread & even wear...
My main issue with the tires is almost a year after having them installed, they started to dry rot. I went back to the shop I purchased them from & they reached out to Toyo & I was told that dry rot was to be expected and pretty much told me “it is what it is”. I’ve had several sets of Toyo’s mt’s and even a set of rt’s without any issues with dry rot. I just wasn’t expecting that with the at3’s. That being said I have just a touch over 60,000 miles on these tires & they do still have decent tread & even wear. I rotate them every oil change & they are starting to get a little noisy but I guess I can’t complain too much, I just really didn’t expect dry rot in a reputable brand of $1600 tires
Vehicle: 2016 Toyota Tundra 4WD Double Cab Miles Driven on Tires: 60,000 Driving Conditions: Combined Off Road/Highway Location: EIGHT MILE, AL Driving Style: Average
I have run this tire before on my Toyota Sequoia and it was a great all purpose tire. Great in the snow and off road, quite on the highway and I got 85,000 miles out of my last set.
Vehicle: 2006 Ford F150 XLT Super Cab 4wd Standard Payload 6-Lug Miles Driven on Tires: 5,000 Driving Conditions: Combined Off Road/Highway Location: YUMA, CO Driving Style: Average
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).