This OE 3550030-YC5101A ABS valve assembly is equipped with multiple independent 24V DC electromagnetic solenoids, each channel separately controlling one wheel’s brake air pressure, realizing fast pressure relief, pressure retention and pressure boosting under ECU signal instruction to prevent wheel lock on wet, icy and gravel roads. The whole valve body is integrally die-cast with thick aluminum alloy, and the back cross reinforcing ribs evenly disperse internal air pressure stress, avoiding valve shell crack under long-term frequent brake switching. A built-in fine filter screen at the top air inlet intercepts tiny dust and oil impurities in compressed air, effectively preventing small valve core jamming and ABS failure. Four standard large threaded air ports are precisely CNC machined, 1:1 replicating Dongfeng Captain original brake pipeline size, supporting plug-and-play replacement without cutting or modifying air hoses. All solenoid wiring connectors adopt waterproof dustproof plug design to adapt to complex outdoor transportation environments.