The HOWO battery box assembly is a comprehensive kit that securely houses and protects the batteries in the HOWO A7 8X4. This assembly includes the HOWO battery box assembly (two variants), Battery box lock assembly, Battery box lock drag hook, Battery box lock drag ring, Hexbolt, Battery box cover, Pressure plate, I shape Hexagonal nut, Flat washer, Spring washer, Spring rubber cushion (upper and lower), Rubber ring, Self-locking screw, Seal cushion, Power supply switch, Electrical appliances block assembly drawing, Electrical appliances block, and 2-type hex locknut. When you choose genuine howo Parts for your HOWO battery box assembly, you guarantee a perfect fit, reliable battery retention, and protection against vibration and corrosion.
The HOWO battery box assembly is the main enclosure that holds one or two batteries securely in the chassis. It is made of heavy-gauge steel with a corrosion-resistant coating to withstand harsh underbody conditions.
Two part numbers are offered: AZ9725760005 and AZ9725760003, both providing the same robust structure. The assembly includes pre-drilled mounting holes and reinforcing ribs for added rigidity.
The Battery box lock assembly is a latching mechanism that secures the battery box cover. It prevents accidental opening and deters theft, ensuring the batteries remain protected.
This assembly includes the lock cylinder, latch, and mounting hardware. Two units are required per vehicle, one for each side of the cover.
The Battery box lock drag hook is a metal hook that engages with the lock assembly to keep the cover tightly closed. It is designed to withstand constant opening and closing.
This component is made from hardened steel and features a zinc plating to resist rust, ensuring smooth operation over many years.
The Battery box lock drag ring is the counterpart to the drag hook, providing a secure loop for the hook to latch onto. It is welded to the battery box body.
This ring is manufactured from high-strength steel and is designed to handle the heavy loads of the battery box cover and any impact forces.
The Hexbolt is a high-strength fastener used to secure the battery box assembly to the chassis frame. It is available in various lengths (M8x20, M8x35, M6x20, etc.) and grades.
These bolts are made of grade 8.8 steel with a zinc plating for corrosion resistance, ensuring reliable clamping force under extreme vibration.
The Battery box cover is a hinged lid that provides access to the batteries for maintenance and replacement. It is stamped from the same heavy-gauge steel as the box.
This cover features a rubber seal around its perimeter to keep out dust and moisture, protecting the battery terminals and electrical connections.
The Pressure plate is a flat metal bracket that sits on top of the battery to hold it securely in place. It prevents the battery from shifting during vehicle movement.
Two pressure plates are used per battery box, each secured with hexbolts and nuts. They are adjustable to accommodate different battery heights.
The I shape Hexagonal nut (type 1) is a standard hex nut used with hexbolts to create secure threaded joints. It is made from carbon steel with a zinc coating.
These nuts are used in sizes M8 and M6, often with spring washers to prevent loosening. They are essential for mounting the pressure plates and cover hinges.
The Flat washer distributes the clamping load under bolt heads and nuts, protecting the surface of the battery box and chassis from damage. It is made of low-carbon steel.
These washers are used in sizes M5, M6, and M8, and are often paired with spring washers for maximum joint integrity.
The Spring washer (split lock washer) prevents bolted joints from loosening due to vibration. It exerts a constant spring force under the bolt head or nut.
These washers are used in sizes M6 and M8, and are critical for maintaining tightness in the battery box assembly, which experiences constant road shock.
The Spring rubber cushion is a resilient pad placed between the battery and the box or pressure plate. It absorbs vibration and prevents battery case abrasion.
Two types are used: upper cushions (against the pressure plate) and lower cushions (against the box floor). They are made of oil-resistant rubber with a durometer of 70 Shore A.
The Rubber ring is a grommet used to protect wires and cables that pass through holes in the battery box. It prevents chafing and short circuits.
This ring is sized for 50mm and 35mm diameter openings, ensuring a snug fit around cable bundles. It is made from EPDM rubber for weatherability.
The Self-locking screw incorporates a nylon patch or deformed thread that resists loosening under vibration. It is used for securing the cover and other components.
These screws are available in M8 size and are used in conjunction with washers. They provide a reliable, maintenance-free fastening solution.
The Seal cushion is a foam or rubber gasket that seals the battery box cover to the body, preventing water and dust ingress. It is placed around the perimeter.
This cushion is self-adhesive for easy installation and provides a tight seal that keeps the battery compartment clean and dry.
The Power supply switch is a master disconnect switch that isolates the battery from the vehicle’s electrical system. It is used for safety during maintenance and storage.
Two variants are available: standard and Hangzhou-sourced (WG910076100/1). Both are rated for 24V and 200A continuous current, with a robust rotary mechanism.
The Electrical appliances block assembly drawing is a schematic or layout diagram that shows the correct placement and wiring of the electrical components inside the battery box.
This drawing is essential for proper assembly and troubleshooting, ensuring all connections are made correctly and safely.
The Electrical appliances block is a junction plate or mounting board that holds fuses, relays, and other electrical devices within the battery box. It simplifies wiring and organization.
This block is made of insulating material and features pre-drilled holes for mounting components and cable routing.
The 2-type hex locknut is a full-metal locknut that provides a prevailing torque to prevent loosening. It is used in high-vibration areas like the battery box mounting.
These nuts are made from steel with a corrosion-resistant finish and are used with hexbolts for the most critical joints.
HOWO battery box assembly – Complete enclosure and mounting hardware set
| Part NO. | Description |
|---|---|
| AZ9725760005 | HOWO battery box assembly |
| AZ9100760110 | Battery box lock assembly |
| AZ9100760111 | Battery box lock drag hook |
| AZ9100760112 | Battery box lock drag ring |
| AZ9725760003 | HOWO battery box assembly |
| Q151B1645 | Hexbolt |
| AZ9100760102 | Battery box cover |
| AZ9100760104 | Pressure plate |
| Q340B08 | I shape Hexagonal nut |
| Q40108 | Flat washer |
| Q40308 | Spring washer |
| 1682110021 | Spring rubber cushion |
| AZ9100760108 | Spring rubber cushion |
| Q150B0835 | Hexbolt |
| Q40308 | Spring washer |
| Q340B08 | I shape Hexagonal nut |
| AZ9719770058 | Rubber ring |
| 190003888459 | Self-locking screw |
| 199100760099 | Seal cushion |
| Q40108 | Flat washer |
| WG910076100 | Power supply switch |
| WG910076100/1 | Power supply switch |
| Q150B0620 | Hexbolt |
| AZ9725760007 | Electrical appliances block assembly drawing |
| AZ9725760004 | Electrical appliances block |
| Q150B0814 | Hexbolt |
| Q33208 | 2-type hex locknut |
Our HOWO battery box assembly is manufactured from high-strength steel with a durable powder-coat finish that resists chipping and corrosion. It provides excellent protection for your batteries against road debris and moisture.
The complete hardware kit includes every bolt, nut, washer, and cushion needed for installation. This saves you time and ensures you have the right fastener for every application, reducing the risk of improper assembly.
The battery box lock assembly and cover seal keep your batteries secure and clean, preventing terminal corrosion and short circuits. The included rubber cushions absorb shock, extending battery life by reducing plate damage.
We supply both standard and supplier-specific variants (e.g., Hangzhou power switch) to match your supply chain. Every component is factory-tested for fit and function, so you can trust our HOWO battery box assembly to perform reliably in the toughest conditions.
The HOWO battery box assembly is more than just a container; it is a carefully engineered system that protects your investment in batteries. A well-maintained box prevents acid spills, electrical shorts, and physical damage.
The box is designed to fit two 12V batteries in series (24V system) or a single large battery. Its internal dimensions accommodate standard BCI Group 31 batteries, and the pressure plates are adjustable to secure different heights.
Regular inspection of the battery box assembly is recommended. Check for rust, loose bolts, and worn rubber cushions. Replace any damaged seals or grommets to keep the compartment clean.
The power supply switch is a convenient safety feature that allows you to disconnect the battery during servicing, preventing accidental sparks and electrical fires.
Begin by cleaning the chassis mounting area to ensure a flat, rust-free surface. Use the provided hexbolts and flat washers to secure the box to the frame, torquing M8 bolts to 25–30 N·m.
Install the lower rubber cushions inside the box, then place the batteries. Position the upper cushions and pressure plates, and secure them with the I shape Hexagonal nuts and spring washers.
Attach the battery box cover and install the lock assembly, drag hook, and drag ring. Ensure the seal cushion is properly aligned to prevent water ingress.
Route cables through the rubber rings (grommets) and connect the power supply switch. Follow the electrical appliances block assembly drawing to correctly wire all accessories.
After installation, test the power supply switch and verify that all connections are tight. Check that the cover locks securely and that the drag hook engages properly.
The HOWO battery box assembly is specifically designed for the HOWO A7 8X4 chassis, but many components (like hexbolts, washers, and the power switch) are standard across multiple HOWO models.
Part numbers AZ9725760005 and AZ9725760003 are interchangeable; the difference is in supplier sourcing. Both fit the same mounting points and have identical dimensions.
The power supply switch (WG910076100 and /1) are also interchangeable; the /1 is sourced from Hangzhou but has the same electrical ratings.
Always verify the number of batteries and their dimensions when ordering, as the box is designed for specific group sizes. Consult your vehicle’s manual for exact requirements.
A properly installed HOWO battery box assembly protects your batteries from road salt, mud, and water, which are common causes of terminal corrosion and premature failure.
The use of spring washers and self-locking screws ensures that all fasteners stay tight despite constant vibration, eliminating the risk of the battery shifting and shorting against the box.
The seal cushion and rubber rings keep the electrical compartment dry, preventing moisture-related breakdowns. This is especially important for the power supply switch and electrical block.
For fleet operators, standardizing on this assembly simplifies parts inventory and reduces maintenance time. The rugged construction means fewer replacements over the vehicle’s lifetime.
We recommend inspecting the rubber cushions and seal cushion every 6 months and replacing them if they show signs of cracking or compression set.
Our technical support team can provide detailed torque specifications and installation diagrams to ensure your HOWO battery box assembly is fitted correctly.
Choose our assembly for peace of mind – you get a complete solution that includes every component needed for a professional installation. Order your kit today and keep your truck running reliably.
Remember to always disconnect the battery before performing any work on the electrical system. Safety first ensures a successful installation.
With over 20 years of supplying heavy-duty parts, we are your trusted partner for all HOWO A7 8X4 components. Contact us for any questions about compatibility or availability.
We offer competitive pricing and fast shipping to minimize your vehicle downtime. Keep your fleet moving with our high-quality HOWO battery box assembly.
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