Relief Valve Assembly OE 3531010-90000 for Dongfeng GX & KX Truck

This Relief Valve Assembly is precision-engineered to match Dongfeng GX & KX’s original equipment standards, with the unique OE number 3531010-90000 ensuring perfect fitment. It aligns seamlessly with the truck’s hydraulic system mounting points and fluid interfaces, requiring no drilling, adapters, or reconfiguration—simply bolt into the factory position to replace faulty units. Compatible with all Dongfeng GX/KX models (including heavy-duty cargo trucks and tractor-trailers), it eliminates fitment risks for fleet operators and technicians, integrating seamlessly with hydraulic brake and steering systems while adhering to OEM performance benchmarks.

As a critical hydraulic system component, this relief valve is calibrated to maintain pressure within 0.8-1.2 MPa, automatically releasing excess fluid to prevent overpressure damage. The precision-machined valve core and high-tension spring ensure fast response to pressure fluctuations, even during heavy load operation or frequent steering adjustments. Operating on Dongfeng’s standard hydraulic fluid specifications, it minimizes pressure drops and ensures consistent performance, avoiding system failure and enhancing vehicle control—critical for long-haul trips and demanding logistics workflows.

Built for heavy-duty trucking environments, this valve features a high-strength carbon steel body with anti-corrosion plating, resisting rust, hydraulic fluid erosion, and mechanical wear. The nitrided valve core reduces friction for extended service life, while the premium O-ring seal provides a leak-proof barrier against fluid seepage. It tolerates extreme temperatures (-30°C to +100°C), performing reliably in cold northern regions, humid coastal areas, and hot deserts. Rigorous durability tests (including pressure cycling and vibration resistance) confirm long-term performance, reducing replacement frequency and total ownership costs.

This Relief Valve Assembly meets ISO/TS 16949 quality standards and global commercial vehicle safety regulations, ensuring hydraulic system protection and road compliance. Proper pressure regulation prevents costly damage to hydraulic components (pumps, hoses, cylinders) and minimizes downtime for fleet operations. For repair shops and fleet managers, it offers a cost-effective, OEM-quality replacement that reduces maintenance time—install in minutes without specialized tools. Its reliable performance keeps Dongfeng GX/KX trucks operational, supporting efficient logistics and reducing operational disruptions.