Dongfeng GX Pressure limiting valve assembly 3534010-H0100

Engineered exclusively for Dongfeng GX models, this assembly matches OEM dimensions with ±0.1mm tolerance, ensuring perfect alignment with the target system’s fluid/gas lines and mounting brackets. The inlet/outlet ports (1/4-inch NPT threads) fit exactly into the factory pipelines, creating a leak-tight seal without adapters or thread modification. The mounting flange (4 pre-drilled holes, 8mm diameter) aligns with the vehicle’s frame brackets, eliminating gaps that could cause vibration-induced loosening. The electrical connector (4-pin, if equipped with pressure feedback) is identical to the factory part, plugging directly into the Dongfeng GX’s wiring harness—no splicing needed. Unlike generic aftermarket valves, it follows the system’s original layout, avoiding interference with nearby components (e.g., brake lines, fuel rails). Rigorously tested on Dongfeng GX test vehicles, it passes 150+ fitment checks to guarantee consistency, ensuring hassle-free replacement for repair shops and owners

Constructed with rugged, corrosion-resistant materials, the assembly endures harsh operating conditions in Dongfeng GX’s systems. The valve body uses high-grade brass (HPb59-1) with a nickel-plated surface, resisting corrosion from brake fluid, fuel, or hydraulic oil—tested to withstand 500 hours of immersion in brake fluid (DOT 4) without pitting or leakage. The internal spring is made of stainless steel (304), maintaining elastic force even after 10,000 compression cycles and resisting rust in high-humidity environments. The sealing components (nitrile rubber for fluid systems, EPDM for air systems) have a temperature resistance range of -40°C to 120°C, ensuring no hardening or cracking in extreme cold or heat. It also passes pressure impulse tests (1.5× rated pressure for 1,000 cycles), confirming structural integrity and preventing valve body deformation under stress

The 3534010-H0100 assembly acts as a critical safety barrier, protecting Dongfeng GX’s systems from overpressure-induced failure. When pressure in the target system (e.g., brake hydraulics) exceeds the preset 12 bar threshold, the valve’s poppet opens rapidly to divert excess fluid to a reservoir (or release excess air), preventing hose bursts, seal damage, or component deformation. For the brake system, this ensures consistent braking force and avoids brake fade caused by overpressure. For fuel systems, it prevents fuel line rupture that could lead to leaks or fire hazards. The valve also features a pressure relief check function, ensuring no reverse flow that could contaminate the system. It complies with ISO 4413 (hydraulic fluid power) and SAE J1401 (automotive brake system components) standards, meeting global safety benchmarks. Each unit undergoes 100% pressure testing before leaving the factory, ensuring it activates reliably at the preset threshold

Designed for easy installation, the assembly requires no specialized tools, making it accessible to professionals and DIY owners. The process takes 20 minutes max: 1) Depressurize the target system (e.g., bleed brake fluid or release air from suspension); 2) Unplug the electrical connector (if applicable) and use a 19mm wrench to loosen the old valve’s inlet/outlet connections; 3) Apply a thin layer of thread sealant (included for fluid systems) to the new valve’s ports; 4) Tighten the new valve to the specified torque (25±2 N·m) and reconnect the connector; 5) Repressurize the system and check for leaks. No system calibration or reprogramming is needed— the valve operates automatically once installed. A step-by-step instruction manual with safety notes (e.g., depressurization steps) is included. This saves time and labor costs, avoiding dealer visits and ensuring the target system resumes safe operation quickly