Warrior WD421 315/80R22.5 22PR – Upgraded for Heavy-Duty Performance
In today’s demanding transport and construction environment, tyres are not just a component — they are a critical cost driver for fleets. From cement mixers to dump trucks operating in harsh on/off-road conditions, fleets require tyres that deliver strength, durability, and longer mileage.
The Warrior Premium WD421 (315/80R22.5 22PR) has now been upgraded with improved design and advanced Chinese tyre engineering technologies to meet the real-world needs of heavy-duty operations.
Designed for Tough Applications
The WD421 is engineered for drive axle positions and is ideal for:
- Cement mixers
- Dump trucks
- Construction transport vehicles
- Mining and off-road haulage
Its aggressive block pattern and reinforced structure ensure maximum traction and stability on rough terrain.
Upgraded Pattern & Structural Technology
1. Advanced Block Pattern Design
The tyre features a large horizontal block layout arranged in a directional “A-shape” formation, delivering stronger driving force, enhanced traction, and stable grip in off-road conditions.
2. Stone Ejector Technology
The groove base incorporates a stone-rejection structure that prevents stone trapping, reduces drilling damage, and helps extend casing life.
3. Groove Crack Prevention System
Reinforced connections between tread blocks and shoulder areas reduce stress concentration and minimize groove cracking, improving durability in heavy-duty operations.
4. Open Shoulder Heat Dissipation Design
An open shoulder layout improves airflow and heat release, helping prevent overheating and increasing tyre lifespan under demanding load conditions.
Stronger Casing – Built for Retreading
The Warrior WD421 is engineered with a reinforced casing structure to maximize durability and retread potential.
Key features include:
- High-tensile steel belts for load stability
- Strong bead design for heavy-duty mounting
- Reinforced sidewalls for improved impact resistance
This construction ensures the tyre maintains structural integrity even under heavy loads and rough operating environments.
Deep Tread for Longer Mileage
The WD421 features deep tread depth (approx. 20mm+), delivering:
- Extended service life
- Improved wear resistance
- Higher mileage performance
For fleet operators, this translates directly into lower operating costs and better return on investment.
Load Capacity & Performance
- Load Index: 162/158
- Designed for single and dual fitment
- Reliable performance in high temperatures and heavy cargo operations
The tyre’s robust design ensures consistent performance across demanding transport and construction applications.
Chinese Tyre Innovation – Global Quality Standards
Chinese tyre manufacturing has advanced significantly in recent years through:
- Automated production systems
- Advanced rubber compounding technologies
- Strict quality inspection protocols
- International certifications including E4, DOT, GCC, and ISO
These developments ensure tyres like the Warrior WD421 meet global performance and safety expectations.
Why Fleets Choose WD421
- Strong traction in harsh environments
- Longer mileage and tread life
- Durable casing suitable for retreading
- High load carrying capacity
- Lower cost per kilometer
For fleets operating in construction, mining, and heavy-duty transport, the Warrior WD421 delivers the reliability needed to keep operations moving.
Partner with Trojan for Heavy-Duty Tyre Supply
For tyre importers, distributors and fleet operators, selecting the right tyre is critical to long-term profitability.
Trojan – The Global Tyre Company connects partners worldwide with high-performance tyre solutions, including the Warrior WD421, backed by reliable supply, technical expertise and competitive global sourcing.
👉 Contact Trojan today to explore bulk sourcing opportunities and expand your heavy-duty tyre portfolio with Warrior tyres.

