KT831 Heavy Duty Radial OTR Tire for Loaders, Graders & Dozers
The KOYOOTO KT831 is a heavy-duty radial OTR tire designed for loaders, graders, dozers and other construction equipment operating in demanding off-road environments. It is engineered to provide strong traction, stable handling, wear resistance and dependable service life in construction, quarrying, aggregate handling and industrial applications.
The KT831 is available in 15.5R25, 20.5R25, 23.5R25 and 26.5R25 sizes, with G3/L3 and E3/L3 tread classifications depending on tire size. The available specifications make the KT831 suitable for different loader, grader and earthmoving equipment applications.
Heavy-Duty Radial Construction
The KT831 features a robust radial construction developed for demanding off-road operations. Its reinforced casing is designed to provide stable support under heavy loads while maintaining handling stability during repeated loading, grading and earthmoving operations.
The radial construction also helps provide consistent tire performance when equipment operates for extended periods on construction sites, quarry roads and other rough working surfaces.
Durable Tread for Severe Off-Road Conditions
The KT831 uses a durable tread design and specialized tread compound to improve resistance to abrasion and cuts. The tread depth is optimized for longer service performance, with increased original tread depth available on the 20.5R25 and 23.5R25 sizes.
This makes the KT831 a practical choice for applications where tire wear, sharp aggregate, gravel and rough terrain can significantly affect tire service life.
Strong Traction and Precise Handling
The KT831 tread pattern is developed to provide reliable traction and controllability for loader and grader applications. Large tread elements provide effective ground contact while helping maintain stability during loading, grading and material-handling operations.
For wheel loaders, the tire is designed to support traction and stability during loading cycles. For graders and dozers, the tread design helps provide dependable grip and predictable handling across demanding off-road surfaces.
KT831 OTR Tire Sizes
The KT831 is available in the following sizes:
| Tire Size | TRA Code | Star Rating | Rim Width | Tread Depth | Load Index / Speed Symbol | Type |
|---|---|---|---|---|---|---|
| 15.5R25 | G3/L3 | ★★ | 12.00-1.3 | 33 mm | 161 A8 / 176 A2 | TL |
| 20.5R25 | E3/L3 | ★★ | 17.00-2.0 | 40 mm | 177 B / 193 A2 | TL |
| 23.5R25 | E3/L3 | ★★ | 19.50-2.5 | 44 mm | 185 B / 201 A2 | TL |
| 26.5R25 | E3/L3 | ★★ | 22.00-3.0 | 45 mm | 193 B / 209 A2 | TL |
Loader, Grader and Dozer Applications
The KT831 heavy-duty radial OTR tire is suitable for a range of earthmoving and construction equipment, including:
- Wheel loaders
- Motor graders
- Dozers
- Earthmoving equipment
- Quarry equipment
- Aggregate handling machinery
- Construction equipment
- Industrial off-road machinery
Long Service Life and Operating Efficiency
OTR tire durability has a direct effect on equipment operating costs. The KT831 is engineered to provide a combination of tread durability, traction and structural stability for demanding applications.
Its durable tread compound and heavy-duty radial construction are designed to help reduce premature wear and provide consistent performance throughout the tire’s operating life.
Actual tire service life depends on machine type, load, inflation pressure, operating speed, road conditions and maintenance practices.
Why Choose KOYOOTO KT831?
The KT831 combines heavy-duty radial construction, durable tread performance and reliable traction for demanding loader, grader and dozer applications.
KOYOOTO supplies radial OTR tires for international distributors, construction equipment dealers, OEM customers and fleet operators. Contact KOYOOTO for available sizes, technical specifications, wholesale pricing and OEM supply options.
Frequently Asked Questions About KT831 OTR Tire
What equipment is the KT831 OTR tire designed for?
The KT831 is designed for loaders, graders, dozers and other heavy construction and earthmoving equipment.
What sizes are available for the KT831?
The KT831 is available in 15.5R25, 20.5R25, 23.5R25 and 26.5R25 sizes.
What tread classifications are available for the KT831?
The 15.5R25 size uses a G3/L3 classification, while the 20.5R25, 23.5R25 and 26.5R25 sizes are available with E3/L3 classification.
Is the KT831 suitable for wheel loaders?
Yes. The KT831 is designed for demanding loader applications requiring traction, stability and durable tread performance.
Is the KT831 a tubeless OTR tire?
Yes. The listed KT831 specifications use TL construction.


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