The Thunderer OA421 is a versatile mixed-service semi-truck tire that's built for use in regional and long haul applications. The OA421 features a heavy-duty, damage-resistant tread compound that's designed for good heat dissipation, an on- and off-road tread pattern, retreadable casing, and an up to 20 ply rating.
Features & Benefits
Designed for use on mixed-service semi-trucks in regional and long haul applications
Tread pattern allows for better performance on- and off-road
Rubber compound guards the tire against cuts, chips, and abrasions that are common with on- and off-road driving
Engineered to dissipate heat to prevent irregular wear
No, Thunderer OA421 tires typically aren't made in the United States. Although Thunderer Thunderer Mach IV R302 tires are engineered and designed for North America by American Omni Trading Company, they are primarily manufactured at cutting edge facilities in Thailand. That being said, some OA421 tires could be made in other parts of the world.
Thunderer OA421 is a commercial tire meant for mixed services across regional and long haul applications. It is versatile and is meant to be installed on semi-trucks.
Thunderer OA421 tires have a load range of G, H, or and a ply rating of 14, 16, or 20 depending on the tire's size. These load ranges and ply ratings allow OA421 tires to confidently haul heavy weights, though proper maintenance and rotation are important for ensuring long-term health.
No, Thunderer OA421 tires are not covered under a limited manufacturer's mileage warranty. However, the OA421 is covered by a limited protection policy to protect customers against workmanship and material defects as per certain terms and conditions.
Yes, Thunderer OA421 tires are made with a suitable tread pattern that enables smooth movement on the road and off it.
Yes, Thunderer OA421 tires receive a special rubber compound for protection against chips, abrasions, and cuts. That being said, proper maintenance will be a necessary criterion before any possible investigation.
Yes, Thunderer OA421 tires have been engineered specifically for dissipating heat, thereby leading to even tread wear. Additionally, these tires are present within a retreadable casing.
Yes, Thunderer OA421 tires utilize a symmetrical tread design that is responsible for low rolling resistance and high directional stability. That being said, it is important for drivers to adhere to the set speed limits for best results.