Dongfeng kinland truck spare parts ABS Solenoid Valve Assembly 3550ZB1E-001

A core advantage of the 3550ZB1E-001 assembly is its ability to deliver precise hydraulic control, critical for preventing wheel lockup during emergency braking. The assembly features 3 independent solenoid valves (inlet, outlet, and hold) that operate at a response time of ≤15ms—fast enough to adjust brake pressure 60+ times per second. When the ABS controller detects impending wheel lockup (via wheel speed sensors), the inlet valve closes to stop pressure buildup, the hold valve maintains stable pressure, and the outlet valve releases excess pressure to the brake fluid reservoir—ensuring each wheel maintains traction with the road. This precision reduces braking distance by 15-20% on wet or icy roads compared to non-ABS systems, and prevents skidding or loss of steering control during heavy braking. For Kinland trucks hauling heavy loads (up to 49 tons) or operating on slippery highways, this control is essential for driver and cargo safety

Built to withstand harsh truck operating environments—including vibration, extreme temperatures, and hydraulic fluid contamination—the 3550ZB1E-001 assembly uses robust, wear-resistant components. The valve body is machined from high-strength aluminum alloy (6061-T6) with an anodized finish, delivering excellent corrosion resistance (passes 1,000-hour salt spray tests) and structural integrity under high pressure. Internal valve cores are made of hardened stainless steel (HRC 58-60) to resist wear from hydraulic fluid impurities, while solenoid coils use copper wire with high-temperature insulation (rated to 150°C) to prevent overheating. The entire assembly is sealed to IP6K9K standards—dust-tight and resistant to high-pressure, high-temperature water jets—preventing damage from road spray, mud, or cleaning procedures. This durability ensures the assembly operates reliably for 800,000+ kilometers (equivalent to 5+ years of heavy use), outperforming generic valves that fail within 300,000 kilometers

The 3550ZB1E-001 assembly is optimized for compatibility with Dongfeng Kinland’s 24V electrical system, featuring low-power solenoid coils that draw only 2.5A of current—reducing load on the truck’s alternator and battery. The 6-pin electrical connector uses gold-plated pins to ensure stable signal transmission between the valve and ABS controller, even in high-vibration environments (up to 20g at 50-2000Hz). This stable communication prevents false ABS triggers or system errors, ensuring consistent braking performance. Additionally, the assembly includes a built-in diagnostic resistor that allows the truck’s ECU (Engine Control Unit) to detect faults (e.g., coil burnout, valve sticking) and trigger a warning light on the dashboard—enabling timely maintenance before brake performance degrades. For fleet operators, this diagnostic feature reduces downtime by simplifying troubleshooting

The 3550ZB1E-001 assembly is designed for hassle-free, drop-in installation, minimizing Kinland truck downtime. It comes fully pre-assembled with all necessary hardware: 4 high-strength mounting bolts (M8×20mm), 3 hydraulic fitting seals (nitrile rubber O-rings, compatible with DOT 3/DOT 4 brake fluid), and a pre-wired electrical connector. Installation takes 45-60 minutes for a technician using standard tools (socket wrench, torque wrench, brake fluid bleeder)—no specialized equipment or system calibration is needed, as the valve’s pressure settings and response time match Kinland’s OEM specifications. After installation, a simple brake fluid bleed (following Kinland’s factory procedure) is all that’s required to restore full ABS functionality. For fleet managers, this easy installation reduces labor costs and ensures trucks return to service quickly—critical for time-sensitive freight delivery or construction projects