The part are essential components of the anti lock braking system on the HOWO MAX 4X2 tractor, ensuring safe and controlled braking under all conditions. This genuine ABS parts kit includes the solenoid valves, brackets, fasteners, fittings, seals, and retaining elements needed to maintain or rebuild the ABS system. When you choose authentic Howo Parts, This part kit guarantees OE fitment and reliable brake performance. Below are detailed descriptions of every component included with This part assembly.
Two ABS solenoid valve brackets secure the ABS solenoid valves to the chassis frame. These ABS parts brackets are made from stamped steel with a corrosion resistant coating. They provide a rigid mounting platform that isolates the valves from vibration and ensure proper alignment with the air lines. These ABS parts brackets are essential for maintaining the integrity of the ABS system.
Four ABS solenoid valves are the core actuating elements of the anti lock system. These ABS parts valves modulate air pressure to the brake chambers during ABS intervention. Each valve is a high speed, electrically controlled pneumatic valve that responds to ECU signals in milliseconds. The part solenoid valves are made from corrosion resistant aluminum and include O ring seals for leak free operation.
Four M12x1.25 flange bolts are used to secure the ABS solenoid valve brackets to the chassis. These ABS parts bolts feature a fine pitch thread for high clamping force and an integral flange that eliminates the need for separate washers. The bolts are grade 10.9, providing a tensile strength of 1,040 MPa. Torque these ABS parts bolts to 80 Nm.
Four M12 flange nuts are used in conjunction with the bolts to secure the brackets or other ABS parts components. These nuts are also grade 10.9 and feature a flange that distributes load and prevents loosening. Torque these ABS parts nuts to 80 Nm. The nuts are zinc plated for corrosion resistance.
Eight M8 flange bolts are used to secure various ABS parts, such as the solenoid valve mounting or air line clamps. These bolts are grade 8.8, with a length of approximately 25 30mm depending on application. The flange head provides a large bearing surface. Torque these ABS parts bolts to 25 Nm.
Eight M8 flange nuts are paired with the M8 bolts for fastening ABS parts. These nuts are also grade 8.8 and include a serrated flange that bites into the mating surface to prevent loosening. Torque these ABS parts nuts to 25 Nm.
Four right angle joint bodies are elbow fittings used to connect the air lines to the ABS solenoid valves. These ABS parts fittings are made from nickel plated brass and feature a 90 degree bend for space saving routing. Each joint body has a M22x1.5 thread on one end and a hose barb on the other.
Four hexagon nuts are used to secure the right angle joint bodies or other fittings. These ABS parts nuts are made from zinc plated steel, with a thread size matching the joint (M22x1.5). They are torqued to 30 Nm to ensure a leak free seal.
Four backup washers are used under the hexagon nuts on the right angle joints. These ABS parts washers provide a uniform bearing surface and prevent the nut from galling the joint body. They are made from hardened steel with a zinc coating.
Four O ring seals are used to seal the connections between the right angle joint body and the ABS solenoid valve. These ABS parts O rings are made from FPM rubber, compatible with compressed air and temperatures up to 120°C. They are pre lubricated to facilitate assembly.
Four nut holders NG12 are special retainers that hold the hexagon nuts in position during assembly. These ABS parts nut holders are made from spring steel and clip onto the joint body to prevent rotation of the nut during tightening. They also serve as a locking device.
Four circlips NG12 are retaining rings used to secure the nut holder or other components within The part assembly. These external circlips are made from spring steel and are installed into a groove on the joint body or valve housing to prevent axial movement.
Four elastic elements NG12 are rubber or spring loaded components that provide vibration damping and preload for The part fasteners. These elastic elements reduce the transmission of road vibration to the solenoid valves, extending their service life and maintaining consistent brake performance.
ABS parts – genuine HOWO anti lock braking system hardware kit for MAX 4X2
This part kit includes the solenoid valves, brackets, all fasteners, fittings, seals, and retaining elements. No need to source individual parts; The part kit provides everything for a full ABS service or rebuild.
The part bolts and nuts are property class 10.9 (M12) and 8.8 (M8), ensuring secure, vibration proof fastening. The flange head design eliminates washers and distributes clamping force evenly across The part mounting surfaces.
The part O ring seals, backup washers, nut holders, circlips, and elastic elements ensure leak-free pneumatic connections and vibration isolation. These ABS parts components are specifically matched to the NG12 and M22x1.5 interfaces.
Every ABS parts component is manufactured to SINOTRUK’s exact specifications, matching the original factory ABS system. This part kit bolts directly onto the chassis without modifications, guaranteeing reliable brake performance.
The part system on the HOWO MAX 4X2 consists of solenoid valves that modulate brake air pressure to prevent wheel lockup during heavy braking. The ECU monitors wheel speed and activates the ABS solenoid valves to rapidly open and close, adjusting air pressure to each brake chamber. The part solenoid valves are mounted on the chassis via the brackets,
and the air lines are connected through the right angle joint bodies. The O ring seals and backup washers ensure that no air escapes, maintaining system pressure. The nut holders, circlips, and elastic elements keep the fasteners secure and dampen vibration. A properly functioning ABS parts system significantly reduces stopping distances and maintains vehicle stability on slippery surfaces.
Before installing The part, ensure the air system is depressurized and the vehicle is on level ground. Remove the old solenoid valves and brackets. Clean the mounting surfaces on the chassis and the valve ports. Install the ABS solenoid valve brackets using the M12x1.25 bolts and nuts, torquing to 80 Nm. Mount the solenoid valves to the brackets with the M8 bolts and nuts (25 Nm). Install the right angle joint bodies onto the valve ports with new O ring seals,
using the hexagon nuts and backup washers (torque 30 Nm). Secure the nut holders and circlips to lock the fittings. Connect the air lines to the joint bodies. Reconnect the electrical connectors to the solenoid valves. Pressurize the air system and check for leaks at all ABS parts connections. Test the ABS system by driving at low speed on a slippery surface to ensure proper activation. The part installation is now complete.
If the ABS warning light remains on, inspect The part solenoid valve electrical connectors and the valve coils for continuity. Air leaks from the valve body indicate a failed O ring seal or a loose right angle joint – retorque the nut and replace the seal if necessary. A loose bracket can cause The part valve to vibrate and generate noise; retighten the M12 bolts. If the nut holder or circlip is missing, the nut may loosen; replace the retaining element. The elastic element, if damaged, can allow excessive vibration; replace it. Always use genuine ABS parts for replacement.
Inspect The part during regular chassis services (every 50,000 km). Check the solenoid valve mounting brackets for cracks. Tighten all ABS parts fasteners to specification. Examine the O ring seals for signs of hardening or cracking; replace if any damage is found. Ensure the nut holders and circlips are present and undamaged. Keep The part clean and free from road salt and debris. If the vehicle is used in dusty environments, clean The part solenoid valves periodically with a soft brush.
This part kit is specifically designed for the WABCO or KNORR ABS systems fitted to HOWO MAX 4X2 tractors, SITRAK C7H, and HOWO T7H trucks from 2018 onward. The NG12 designation refers to the size of the pneumatic ports, which is standard for these trucks. The M22x1.5 joint body and the O ring seals are compatible with the original fittings. This part kit is not compatible with older ABS systems using different valve sizes or thread patterns. Always verify your vehicle’s ABS type before ordering.
Aftermarket ABS parts may use inferior solenoid coils that fail prematurely or have incorrect pneumatic flow characteristics, compromising ABS performance. Counterfeit brackets may not have the correct hole spacing, causing the valves to be misaligned and leading to air line stress. Generic fasteners can loosen under vibration, causing The part to fall out of position.
Genuine HOWO ABS parts components are manufactured to SINOTRUK’s exacting standards, using certified materials, precise dimensions, and high quality seals. The small additional cost of genuine ABS parts is insignificant compared to the cost of a brake system failure or an accident.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
