The part is a premium comfort system designed for the lower bunk of the Sitrak C7H heavy truck.
This Lower Berth Cushion set includes the main mattress, rear pad, and support base, providing exceptional rest quality for drivers and co‑drivers during long‑haul journeys.
Engineered with high‑density foam and ergonomic contours, The part delivers optimal spinal support and pressure relief, reducing fatigue and improving sleep quality.
For detailed fitment and compatibility information, please refer to the Sinotruk Catalog.
Whether replacing worn original parts or upgrading the sleeper comfort, this Lower Berth Cushion ensures a factory‑like fit and lasting durability.
The part is the main sleeping pad for the lower bunk. This Lower Berth Cushion is precision‑cut to match the C7H lower platform, offering full‑width coverage and consistent support.
Its core is made from high‑resilience foam that conforms to body contours while maintaining firmness to prevent sinking. The fabric cover is breathable and removable for easy cleaning.
This Lower Berth Cushion is the primary component of the sleeping system, directly impacting driver rest quality and overall wellbeing.
The Lower berth rear cushion is a supplementary pad that fills the rear section of the bunk. This Lower Berth Cushion component ensures complete coverage, eliminating gaps that could cause discomfort.
It is made from the same high‑quality foam as the main cushion, ensuring uniform support across the entire sleeping surface. The rear cushion also aids in maintaining proper spinal alignment.
Together with the main cushion, this Lower Berth Cushion creates a seamless, continuous sleeping platform.
The Lower berth rear cushion support (wide body) is a rigid base that elevates and stabilises the rear cushion. This Lower Berth Cushion component ensures the pad maintains its shape and position, even during vehicle movement.
Constructed from durable plastic or metal, the support features ventilation holes to promote airflow and reduce moisture buildup.
This support is essential for the long‑term durability and comfort of The part system.
| NO. | Part NO. | Name |
|---|---|---|
| 1 | WG1662570366 | Lower berth cushion |
| 2 | WG1662570367 | Lower berth rear cushion |
| 3 | 712-62160-5186 | Lower berth rear cushion support (wide body) |
Our Lower Berth Cushion is engineered with multi‑zone foam technology that provides targeted support to the shoulders, hips, and lower back.
This design reduces pressure points and promotes proper spinal alignment, ensuring drivers wake up feeling refreshed and alert.
The part is made from high‑density, cold‑cure foam that resists sagging and retains its shape over thousands of hours of use.
The cover is crafted from breathable, anti‑bacterial fabric that is removable and machine washable, maintaining a hygienic sleeping environment.
This Lower Berth Cushion is designed for straightforward installation, fitting directly onto the existing bunk platform without modification.
The modular design allows for individual replacement of the main cushion, rear cushion, or support base, simplifying maintenance and reducing costs.
We maintain a comprehensive inventory of Lower Berth Cushion components to ensure fast delivery to any location worldwide.
Our technical support team is available to assist with fitment queries and provide after‑sales service.
The part is critical for driver health and performance. Long‑haul drivers spend many hours resting in the cab, and sleep quality directly affects alertness and reaction times.
A well‑designed Lower Berth Cushion reduces muscle stiffness, improves circulation, and helps prevent chronic back pain, making it an essential investment for any professional driver.
The part features an open‑cell foam structure that promotes air circulation, preventing heat buildup and excessive sweating.
The breathable cover wicks moisture away from the skin, keeping the sleeping surface cool and dry, especially during hot weather or in warm climates.
Place the main Lower Berth Cushion on the bunk platform, aligning it with the edges. Fit the rear cushion into position and secure the support base underneath if required.
Ensure all components are properly seated and that the cover is zipped closed. Regularly air the cushion to maintain freshness.
To extend the life of your Lower Berth Cushion, rotate it periodically to distribute wear evenly. Vacuum the surface to remove dust and debris.
The cover can be removed and washed in cold water. Do not bleach or tumble dry. Allow it to air dry completely before refitting.
This Lower Berth Cushion is designed for the wide‑body sleeper cab of the Sitrak C7H, including both standard and high‑roof variants.
It is not compatible with other truck models or with narrow‑body cabs, so please verify your cab type before ordering.
Each Lower Berth Cushion undergoes rigorous quality control, including foam density checks, fabric abrasion tests, and flammability compliance assessments.
We adhere to international standards for automotive interior materials, guaranteeing a product that meets the highest safety and performance criteria.
Orders for The part are processed within 24 hours, with tracking information provided for all shipments.
Our global logistics network ensures timely delivery to your destination.
Compared to the cost of driver fatigue‑related issues or the expense of replacing an entire bunk assembly, The part offers excellent value.
Its durable construction reduces the need for frequent replacements, and its positive impact on driver morale can lead to increased productivity and retention.
Aftermarket cushions often compromise on foam quality or dimensions, leading to poor fit and reduced comfort. Our Lower Berth Cushion is produced to the exact specifications of the original equipment.
This ensures it fits perfectly and performs as intended, providing the same level of comfort and support as the factory‑installed unit.
A properly designed Lower Berth Cushion can help reduce the risk of musculoskeletal disorders, such as back pain and neck stiffness, which are common among professional drivers.
By providing proper support and alignment, The part contributes to long‑term health and reduces the likelihood of work‑related injuries.
The part is tested to perform in a wide range of temperatures, from freezing winters to scorching summers.
The materials maintain their flexibility and support properties regardless of the environment, ensuring consistent comfort year‑round.
The materials used in The part comply with FMVSS 302 and other relevant fire safety standards.
The foam and fabric are treated with flame‑retardant additives that do not compromise comfort or durability, providing an extra layer of protection.
The core of The part utilises viscoelastic memory foam infused with cooling gel particles.
This advanced material adapts to the body’s shape while maintaining a comfortable sleeping temperature, combining the benefits of memory foam without heat retention.
The part is contoured to follow the natural curve of the spine, with a slightly raised head area to support the cervical region.
The cushion’s edges are reinforced to prevent sagging, ensuring you can sleep comfortably even near the edge of the bunk.
We are confident in the quality of our Lower Berth Cushion and offer a satisfaction guarantee.
If you are not fully satisfied with your purchase, please contact us within 30 days for a hassle‑free return or exchange.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
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