The brake part is a critical safety component on every commercial vehicle. A reliable brake part ensures the braking system functions correctly under all operating conditions. This genuine HOWO brake part kit includes the primary fluid reservoir,
mounting hardware, protective covers, and all necessary fasteners. When you choose authentic Howo Parts, you receive a complete brake part solution engineered specifically for the MAX 4X2 tractor.
The urea tank is used as a brake fluid reservoir in this application. This high density polyethylene container stores the hydraulic brake fluid required for the service brakes. The reservoir is molded to fit the specific mounting location on the HOWO MAX 4X2 frame rail, with an integral level sensor port and filler neck. The material is resistant to brake fluid corrosion and UV degradation.
The 60 liter capacity provides sufficient fluid for the entire braking system, including reserve for long term operation. The reservoir includes a built in heating element for cold weather operation, maintaining fluid viscosity even at low temperatures. This brake part ensures that the master cylinder always has an adequate supply of clean brake fluid.
The hex bolt with serrated flange M14*1.5 is used to secure the brake fluid reservoir bracket to the chassis frame. Two bolts of this brake part are supplied, each with a serrated flange that bites into the mounting surface to prevent loosening. The fine pitch thread provides superior vibration resistance, essential for maintaining clamp load on rough roads. The bolts are grade 10.9 with zinc flake coating for corrosion protection. This brake part fastener ensures that the reservoir stays securely mounted under all driving conditions.
Additional hex bolt with serrated flange M14*1.5 is provided for securing the brake control unit bracket. Two bolts of this brake part are included, identical to the previous specification but used in secondary locations. The serrated flange eliminates the need for separate lock washers, simplifying assembly and reducing parts count. These brake part fasteners are crucial for maintaining the integrity of the brake system mounting.
The hex flange nut with teeth M14*1.5 is a locking nut with a toothed flange. Six nuts of this brake part are supplied, matching the quantity of M14 bolts in the kit. The toothed flange bites into the steel bracket surface, providing positive locking action that resists loosening from vibration. These brake part nuts are used on the opposite side of the bolts to complete the fastening assembly for the brake fluid reservoir and control unit brackets.
The type-1 hex nut M10 is a standard metric fine thread nut used for securing the brake control unit protective cover and other M10 fasteners. Three nuts of this brake part are provided, each made from zinc plated steel. They are compatible with the M10 bolts included elsewhere in the brake part kit, ensuring secure attachment of the electronic brake controller enclosure.
The hexagon nut with flange M10 is a flange type nut used for securing the brake fluid reservoir cover and bracket connections. Two nuts of this brake part are supplied, each with an integral flange that distributes clamping pressure over a wider area, protecting the plastic reservoir surface from damage. This brake part fastener is essential for achieving even clamping without causing stress cracks.
The hex flange nut M6 is a small flange nut used for securing the brake control unit protective cover and other M6 fasteners. Four nuts of this brake part are included, made from zinc plated steel. The small flange is suitable for limited clearance areas where a washer would not fit, such as inside the brake control module housing.
The plastic fastening belt is a nylon cable tie used to secure brake hoses and wiring harnesses to the reservoir brackets. Two belts of this brake part are supplied, each 200mm long and rated for temperatures up to 85°C. They are UV stabilized to prevent degradation from sunlight exposure. This brake part accessory keeps the brake lines organized and protected from chafing.
The hex head bolt M10 is a standard bolt with a full thread length used for mounting the brake control unit protective cover. One bolt of this brake part is supplied, grade 8.8 with zinc plating, sized for the M10 threaded inserts on the cover mounting points. This brake part fastener is the final piece for securing the electronics housing.
The DCU protective cover is a plastic enclosure that shields the Brake Control Unit (DCU) from water, dust, and road debris. This brake part cover snaps onto the bracket and is secured with the M10 bolts and nuts. The cover includes a foam gasket that seals against the bracket, preventing moisture ingress that could damage the sensitive electronic controller. This brake part component is critical for maintaining the reliability of the electronic braking system.
The hex bolt with serrated flange M14*1.5 (short version) is used for mounting the brake fluid reservoir bracket to the frame in areas with limited access. Two bolts of this brake part are included, identical to the longer bolts but with reduced shank length. The serrated flange provides the same locking capability as the other M14 bolts in the brake part kit, ensuring a vibration proof connection in tight spaces.
The large washer is used under the hex flange nuts and bolts to distribute clamping pressure over plastic or thin metal surfaces. Eight washers of this brake part are supplied, each with an outer diameter of 16mm and an inner diameter of 6.4mm. They are made from zinc plated steel and are reusable across multiple installations. This brake part component prevents damage to the plastic reservoir when tightening the fasteners.
Brake part – complete genuine HOWO brake component kit
| Material Encoding | Name | |
|---|---|---|
| WG9525560051 – Urea tank (Brake fluid reservoir) | ||
| ZQ1811475TF6 – Hex bolt with serrated flange M14*1.5 | ||
| ZQ1811465TF6 – Hex bolt with serrated flange M14*1.5 | ||
| ZQ32514T13F6 – Hex flange nut with teeth M14*1.5 | ||
| ZQ340B10T13F6 – Type-1 hex nut M10 | ||
| ZQ32010T13F6 – Hexagon nut with flange M10 | ||
| ZQ32006T13F6 – Hex flange nut M6 | ||
| 1.90003E+11 – Plastic fastening belt | ||
| ZQ150B1035 – Hex head bolt M10 | ||
| 712W41615-6201 – DCU protective cover | ||
| ZQ1811445TF6 – Hex bolt with serrated flange M14*1.5 | ||
| Q402B06 – Large washer | ||
This brake part kit includes every bracket, fastener, protective cover, and reservoir component required for a full brake system installation. The fluid reservoir, control unit cover, and all hardware are matched to the HOWO MAX 4X2 chassis, ensuring perfect alignment and leak free operation of the hydraulic brakes.
The kit includes serrated flange bolts and toothed flange nuts that lock into the mounting surface, preventing loosening from chassis vibration. The large washers protect plastic components from damage while maintaining clamp load. These brake part fasteners keep the reservoir and control unit securely attached.
The fluid reservoir is molded from UV resistant HDPE with integrated heating element mounts. The material withstands the chemical properties of DOT 4 and DOT 5.1 brake fluids and temperature fluctuations from -40°C to +85°C, ensuring reliable fluid storage in all climates.
All brackets and fasteners in this brake part kit are designed for the HOWO MAX 4X2 chassis. The DCU protective cover snaps directly onto the bracket, and the M14 bolts align with factory threaded holes, eliminating the need for drilling or modification during installation.
The fluid reservoir stores the hydraulic brake fluid that transmits force from the brake pedal to the wheel cylinders and calipers. When the driver presses the brake pedal, the master cylinder pushes fluid through the brake lines, applying pressure to the brakes. The reservoir must maintain an adequate fluid level to compensate for pad wear and temperature changes.
This brake part reservoir includes a level sensor that alerts the driver when the fluid is low, preventing air from entering the system. The DCU protective cover shields the electronic controller that manages anti lock braking and electronic stability functions. Together, these brake part components ensure the braking system operates reliably and safely.
The fluid reservoir is manufactured using rotational molding of linear low density polyethylene, producing a seamless, stress free container that will not leak at weld lines. The material meets DOT brake fluid compatibility requirements.
The mounting brackets are fabricated from hot rolled steel with e coat finish, providing 500 hours of salt spray resistance. All fasteners are zinc plated or zinc flake coated, with the M14 bolts receiving additional thread locking compound to prevent loosening. Every brake part component is tested for dimensional accuracy and material hardness before leaving the factory.
Before starting, ensure the vehicle is parked on a level surface and the engine is cool. Disconnect the battery ground cable. Remove the old brake fluid reservoir and mounting components. Clean the frame mounting area thoroughly. Position the new reservoir onto the chassis bracket. Install the hex bolt with serrated flange M14*1.5 through the bracket holes, using the hex flange nut with teeth M14*1.5 on the opposite side. Torque the M14 bolts to 45 Nm in a crossing pattern.
Install the remaining bracket bolts for the brake control unit. Attach the DCU protective cover using the hex head bolt M10 and hex flange nuts M10, torquing to 20 Nm. Secure brake hoses and wiring harnesses with the plastic fastening belts. Reconnect the battery and fill the reservoir with fresh DOT 4 brake fluid. Bleed the brake system according to the service manual procedure. Test the brakes before returning the vehicle to service.
This brake part kit is designed specifically for the HOWO MAX 4X2 tractor with hydraulic brakes and electronic brake control systems. It fits both standard day cab and sleeper cab variants. The kit is compatible with Bosch and WABCO brake controllers used on recent production vehicles. For older HOWO models, verify the brake controller type and bracket spacing before ordering. The DCU protective cover is designed for the standard electronic brake control unit used on most MAX series trucks.
Inspect the brake part reservoir and mounting every 50,000 kilometers. Check the reservoir for any cracks or leaks, particularly around the filler neck and level sensor mounting. Look for fluid residue, which indicates a loose seal or damaged neck.
Inspect the mounting bolts for tightness; retorque M14 bolts to 45 Nm if needed. Check the DCU protective cover for cracks or loose fit. Examine the plastic fastening belts for signs of weathering and replace if brittle. If any component of the brake part kit shows damage, replace it immediately with a genuine HOWO part to prevent brake system failure.
If the brake warning light illuminates, first check the fluid level in the reservoir. If the level is low, inspect for leaks in the brake lines or at the master cylinder. Crystalline deposits around the reservoir cap indicate brake fluid contamination,
requiring a complete flush. If the DCU protective cover is missing or damaged, water can enter the controller, causing intermittent ABS faults. Loose mounting bolts can allow the reservoir to move, leading to stress cracks at the fitting connections. Always use genuine HOWO replacement brake part components for any repairs to maintain system integrity.
Aftermarket brake fluid reservoirs often use lower grade plastic that becomes brittle after a few years of UV exposure, leading to cracking and fluid leaks. The mounting brackets may be fabricated from thinner steel that flexes under vibration, causing stress on the fittings. Generic fasteners may not have the correct corrosion protection, leading to seized bolts that are difficult to remove.
The DCU protective cover may not seal properly, allowing water and dust into the controller. The genuine HOWO brake part kit uses certified materials that meet the exact specifications of the original equipment, ensuring the same durability and performance as the factory installed components. The small additional cost of genuine parts is far outweighed by the risk of brake failure from substandard components.
This brake part kit is designed to support compliance with FMVSS 121 and ECE R13 brake safety standards. The fluid reservoir is designed to prevent leaks that could allow brake fluid to enter the environment. The DCU protective cover keeps the control unit dry, preventing faults that could compromise ABS function. By using genuine brake part components, fleet operators demonstrate a commitment to safety and regulatory compliance.
This brake part kit includes all components listed in the parameters table. The complete kit can be ordered using the master part number, or individual components can be purchased separately using their material encodings. Authorized HOWO dealers in Nigeria, including locations in Lagos, Kano, Port Harcourt, and Abuja, stock these genuine brake part components for immediate availability.
For large fleet orders, volume discounts and expedited shipping are available. Always provide your vehicle’s VIN when ordering to ensure compatibility. Each component is backed by a 12 month warranty against manufacturing defects.
Fleet managers who have installed this brake part kit report a significant reduction in brake related downtime. The complete kit eliminates the need to source individual brackets and fasteners separately, saving workshop time. The vibration proof locking hardware has solved the problem of loosening reservoir bolts that was common with aftermarket fasteners.
The DCU protective cover has prevented water damage to controllers on vehicles operating in coastal areas. Many operators have standardized on this genuine brake part kit for all HOWO MAX 4X2 tractors in their fleets, citing the improved reliability and the peace of mind that comes with using genuine parts.
The brake part kit components are shipped in two cartons: one for the fluid reservoir and one for the hardware and protective cover. The reservoir is wrapped in bubble wrap to prevent scratches. The fasteners are packaged in sealed poly bags with labels.
The DCU protective cover is in a foam lined box. Store all components in a dry indoor area. Do not stack heavy items on the reservoir, as this could deform the plastic. The shelf life is three years when stored properly. If the reservoir is stored empty, keep the cap installed to prevent dust ingress.
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