

Welcome to the premium Sinotruk Sitrak parts collection. Our Sitrak Wheel and Tire (12R22.5-18PR Longitudinal Tread All-Position 22.5×9.00 10-Hole Φ335 Plastic Extension Spacer 8×4) is engineered for modern heavy-duty trucks, offering superior stability, enhanced fuel efficiency, and reliable performance for 8×4 configurations. This all-position assembly is designed to deliver consistent handling and low rolling resistance across all axles, providing a versatile and cost-effective solution for highway and long-distance transportation. The combination of longitudinal tread tires, durable wheels, and practical extension components ensures optimal safety and simplified maintenance for fleet operators.
Sitrak Wheel and Tire (12R22.5-18PR Longitudinal Tread All-Position 22.5×9.00 10-Hole Φ335 Plastic Extension Spacer 8×4)
The Sitrak Wheel and Tire (12R22.5-18PR Longitudinal Tread All-Position 22.5×9.00 10-Hole Φ335 Plastic Extension Spacer 8×4) is a comprehensive wheel and tire assembly engineered specifically for heavy-duty 8×4 trucks. This assembly features an all-position design with a longitudinal tread pattern, making it suitable for steering, drive, and trailer axles. The 12R22.5-18PR tubeless radial tires are constructed with a high load index (152/149) and are optimized for highway use, providing excellent directional stability, low rolling resistance, and efficient water evacuation to reduce the risk of hydroplaning.
Central to this assembly are the robust 22.5×9.00 wheel assemblies. These wheels provide a solid foundation for the tires, ensuring even load distribution and reliable performance under heavy weights. The wheels feature a 10-hole bolt pattern with a Φ335 bolt circle diameter, ensuring compatibility with standard heavy-duty truck hubs and secure mounting. The construction focuses on durability and balance, contributing to smooth operation and reducing vibrations that can lead to driver fatigue and component wear.
This package includes essential maintenance accessories such as tubeless valves and plastic extension rods (spacers). The extension rods are designed for dual-wheel setups, allowing easy access to inner valve stems for pressure checks and inflation. Made from durable, corrosion-resistant plastic, these rods ensure a reliable seal and simplify routine maintenance. By facilitating regular pressure monitoring, these components help maintain optimal tire performance, extend tire life, and improve overall fuel efficiency and safety.
Manufactured under the stringent quality standards of SINOTRUK Sitrak, this complete assembly is rigorously tested for load capacity, high-speed durability, and overall reliability. The all-position design with longitudinal tread offers predictable handling and promotes even wear across all tires, simplifying rotation schedules and inventory management. This assembly represents a practical, high-performance solution for fleet managers and owner-operators seeking to optimize their 8×4 trucks for highway efficiency, safety, and low total operating costs.