The sleeping berth system in the HOWO MAX 4X2 tractor is designed to provide a comfortable rest area for drivers during long hauls. This complete sleeping berth kit includes the upper and lower berth cushions, storage boxes, frame assemblies, brackets, hinges, and all necessary fasteners – ensuring a fully functional and comfortable sleeper cab. When you choose authentic Howo Parts, this sleeping berth assembly guarantees OE fitment and superior comfort. Below are detailed descriptions of every component included with this sleeping berth kit.
The medium‑body bracket is a steel support that reinforces the central section of the sleeping berth structure, providing additional rigidity to the berth frame and distributing the load from the upper berth and storage boxes evenly across the cab floor.
The toolbox is a robust storage compartment integrated into the sleeping berth area, offering convenient space for personal items and tools. Made from impact‑resistant ABS plastic with a secure latch, this component keeps the cab organised and clutter‑free.
The toolbox cover assembly is the hinged lid that seals the toolbox, featuring a reinforced design and a soft‑touch handle. It is upholstered with the same fabric as the cab interior, maintaining a consistent aesthetic within the sleeping berth environment.
This berth box body is the main storage compartment positioned between the upper and lower berths. Designed for the NX‑G cab without a refrigerator, it offers ample space for bedding and personal effects, and is constructed from durable, lightweight composite material.
The corresponding cover for the intermediate berth box, this component is upholstered to match the cab trim and provides a flat, comfortable surface when closed. It incorporates a gas‑strut assisted opening mechanism for easy access.
The lower berth cushion is a high‑density foam mattress that provides comfortable sleeping support. Covered in a durable, breathable fabric, it is designed to fit perfectly within the lower berth frame, ensuring a restful night’s sleep for the driver.
Two heavy‑duty hinges are supplied to attach the upper berth to the cab wall. These hinges are made from steel with a corrosion‑resistant finish, allowing the upper berth to be folded up when not in use, maximising cab space during driving.
The right box bracket is a steel support bracket that secures the right‑side storage box to the sleeping berth frame. It is precision‑formed to match the cab contour and includes pre‑drilled mounting holes for easy installation.
Several flange bolts are supplied to secure various components of the sleeping berth. These grade 8.8 bolts feature an integrated flange that eliminates the need for washers, providing a secure and vibration‑proof fastening for the berth structure.
Large washers are used under bolt heads and nuts to distribute clamping loads over a wider area, preventing damage to the berth components and ensuring even pressure distribution. These washers are made from hardened steel with a zinc‑plated finish.
The support plate is a steel reinforcement that strengthens the mounting points for the upper berth and storage boxes. It is designed to prevent flexing and fatigue in the sleeping berth structure, enhancing long‑term durability.
These M6 flange nuts are used with the corresponding bolts to secure lightweight components of the sleeping berth. The flange acts as a built‑in washer, providing a large bearing surface and simplifying assembly.
This plate provides a dedicated mounting point for an inverter socket within the sleeping berth area. It is made from steel with a powder‑coat finish and includes pre‑cut holes for the socket and wiring, facilitating the installation of 230V AC power.
The upper berth cushion is a high‑quality foam mattress designed for the upper sleeping area. It is covered in a breathable, wear‑resistant fabric that is easy to clean, providing a comfortable sleeping surface for the co‑driver or for additional rest during layovers.
This mat covers the left sleeper box and includes an integrated soundproofing layer that reduces road noise transmission into the cab. It is made from a durable, non‑slip material that also protects the storage box from scratches and wear.
Similar to the left mat, this component covers the main sleeper box area and includes a sound‑absorbing layer to enhance cabin quietness. It is tailored to fit the specific dimensions of the HOWO MAX 4X2 berth box.
This mat covers the intermediate berth box and is lined with absorbent cotton to provide additional cushioning and moisture absorption. It offers a soft, comfortable surface for sitting or resting, and complements the overall sleeping berth interior.
The upper berth frame assembly is the structural support for the upper berth, consisting of welded steel tubing with integrated mounting points for the hinges and mattress. It is powder‑coated for durability and designed to fold up against the cab wall to maximise space when not in use.
Sleeping berth – genuine HOWO complete cab sleeping system kit for MAX 4X2
This sleeping berth kit includes every component needed to fully equip the sleeper cab – from the upper frame and cushions to storage boxes, hinges, and all mounting hardware. No additional parts are required for a complete installation.
The upper and lower berth cushions are made from high‑density foam that provides excellent support and comfort. The breathable, durable fabric covers resist wear and are easy to clean, ensuring a hygienic rest environment.
The sleeping berth includes mats with integrated soundproofing and absorbent cotton layers, which reduce road noise and provide a softer, more comfortable surface for sitting or sleeping, enhancing driver well‑being.
All brackets, bolts, washers, and hinges in this sleeping berth kit are manufactured to SINOTRUK’s exacting standards, ensuring a perfect fit and reliable, vibration‑proof fastening that withstands the rigours of heavy‑duty trucking.
The sleeping berth system in the HOWO MAX 4X2 is designed to provide a restful environment for drivers during mandatory rest periods. The upper and lower berths are constructed with ergonomic foam cushions that support the spine and relieve pressure points, reducing driver fatigue. The storage boxes integrated into the berth area keep personal belongings organised and within easy reach,
while the soundproof mats minimise noise intrusion, promoting deeper sleep. The upper berth can be folded away when not in use, maximising cab space for daytime driving.
The inverter socket mounting plate allows the installation of a 230V inverter, enabling drivers to charge devices or power small appliances. Every component of the sleeping berth is engineered for durability and easy cleaning, ensuring that the rest area remains hygienic and inviting. Regular maintenance of the sleeping berth components, such as checking hinges and fasteners, ensures continued comfort and safety.
Before installing the sleeping berth, remove the existing components and clean the cab area. Start by attaching the medium‑body brackets to the cab wall using the supplied flange bolts and large washers (torque to 25 Nm). Install the upper berth frame assembly to the hinges, then secure the hinges to the cab wall.
Mount the right box bracket and the intermediate berth box body, followed by the toolbox and toolbox cover assembly. Place the lower berth cushion and the upper berth cushion onto their respective frames. Install the sleeper box mats and the medium sleeper cover mat.
Secure all components with the appropriate bolts and nuts, ensuring they are firmly tightened. Finally, attach the inverter socket mounting plate if required. Check all moving parts, such as the upper berth folding mechanism and toolbox lid, for smooth operation. The sleeping berth installation is now complete, ready for use.
If the upper berth does not stay in the folded position, the hinge gas struts may be worn or the mounting bolts may be loose – inspect and retighten. A loose toolbox cover indicates a worn latch or hinge; replace the affected component. If the cushions feel uneven or uncomfortable, check that the support plates are correctly positioned and not damaged.
Squeaking noises from the berth area often point to loose fasteners; retorque all bolts to specification. If the soundproof mats are lifting or wrinkled, ensure they are correctly aligned and secure them with additional adhesive if required. Always use genuine sleeping berth components to maintain proper fit and function.
Inspect the sleeping berth system at every scheduled service (every 50,000 km or annually). Check all bolts and nuts for tightness, especially those securing the hinges and brackets. Examine the cushions for wear, stains, or sagging;
clean them with a mild upholstery cleaner. Test the toolbox and berth box lids for smooth operation, lubricating hinges with a silicone spray if needed. Inspect the soundproof mats for damage and replace if torn. Keeping the sleeping berth clean and well‑maintained ensures driver comfort and prolongs the life of the components.
This sleeping berth kit is specifically designed for the HOWO MAX 4X2 NX‑G cab variant without a refrigerator. It is compatible with all production years from 2018 onward and fits both left‑hand and right‑hand drive configurations. The kit is also suitable for SITRAK C7H and HOWO T7H models with the same cab interior. It is not compatible with standard‑roof cabs or models equipped with an integrated refrigerator unit. Always verify your cab type and options before ordering.
Aftermarket sleeping berth components often use lower‑quality foam that sags quickly, causing back pain and poor sleep. Generic hardware may not fit correctly, leading to rattles and premature wear. The soundproof mats in non‑genuine kits may lack effective sound‑dampening properties, increasing cabin noise and driver fatigue.
Genuine HOWO sleeping berth components are manufactured to SINOTRUK’s exacting standards, using high‑resilience foam, durable fabrics, and precision‑engineered fasteners. The small additional cost of a genuine sleeping berth kit is insignificant compared to the value of driver comfort, safety, and retention. Investing in a genuine sleeping berth ensures that your drivers arrive rested and alert, contributing to safer roads and more productive operations.
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