Air Reservoir Assembly OE 3513950-K39W0 for Dongfeng GX & KX Truck

This Air Reservoir Assembly is precision-engineered to match the original equipment standards of Dongfeng GX & KX trucks, featuring the unique OE number 3513950-K39W0 for guaranteed perfect fitment. It aligns seamlessly with the vehicle’s existing air brake system mounting points and interfaces, requiring no drilling, welding, or adapter modifications—simply bolt it into the factory position to replace old, rusted, or faulty units. Compatible with all Dongfeng GX/KX series models, including long-haul tractor-trailers and heavy-duty cargo trucks, it eliminates fitment risks for fleet operators and repair technicians, ensuring seamless integration with the truck’s braking components while maintaining strict OEM performance benchmarks.

As a critical safety component of the heavy-duty air brake system, this air reservoir is engineered to store compressed air at a stable working pressure of up to 10 bar (145 PSI), providing a consistent air supply for brake actuation in all driving conditions. The heavy-gauge steel construction and precision robotic welding ensure structural integrity under peak pressure loads, preventing deformation, air leaks, or system failure—common issues with low-quality aftermarket alternatives. Whether navigating steep downhill gradients, making frequent stops in urban traffic, or hauling heavy loads, this reservoir maintains optimal air pressure to prevent brake fade, significantly enhancing vehicle safety and reducing the risk of costly downtime for fleet operations.

Built to withstand the harshest trucking environments, this air reservoir features a thick, multi-layer anti-corrosion coating applied to its steel housing, providing superior protection against rust, moisture, salt spray, and road debris. It tolerates extreme temperature fluctuations from -40°C to +80°C, making it suitable for use in diverse climates—from cold northern regions with snow and ice to humid coastal areas and hot desert landscapes. The leak-proof seal and reinforced connection ports resist wear and tear over time, minimizing the need for frequent inspections, repairs, or replacements. Unlike cheaper units that deteriorate within months, this reservoir maintains its structural integrity for years, lowering the total cost of ownership for truck owners and fleet managers.

This Air Reservoir Assembly complies with ISO/TS 16949 automotive quality standards and strict commercial vehicle safety regulations, ensuring it meets the performance and reliability requirements for heavy-duty truck applications. Proper air storage is essential for the functionality of the air brake system, and this OE-matched unit restores optimal brake response time and pressure stability, keeping Dongfeng GX/KX trucks compliant with road safety laws worldwide. For fleet managers, it offers a cost-effective, high-quality replacement solution that reduces maintenance time, minimizes vehicle downtime, and ensures trucks remain operational to support efficient logistics and transportation workflows.