| No. | Part No. | Name |
|---|---|---|
| 1 | 812W25503-6110 | USB Interface (C7H) |
| 2 | 812W25503-5001 | Rocker Switch Mounting Frame (Six‑gang) |
| 3 | WG9X25581020 | Straight Hole Plate |
| 4 | WG9X25581024 | Left Window Lift Switch |
| 5 | WG9X25581025 | Right Window Lift Switch |
| 6 | WG9X25581026 | Electric Sunroof Switch |
| 7 | WG9X25580013 | USB Charging Port (Small) |
| 8 | 752-25452-6034 | Sitrak Sleeper Wiring Harness (with Sleeper Control Switch) |
| 9 | WG1664610107 | Sleeper Control Module Support Plate |
| 10 | WG1662615201 | C7/T5 Rear Wall Liner Rework (Sleeper Control Module) |
This USB interface provides a convenient charging port for mobile devices in the sleeper area. It is specifically designed for the C7H cabin, offering stable 5V/2.1A output. The interface is integrated into the dashboard panel for easy access.
This frame holds up to six rocker switches, organizing the sleeper’s electrical controls. It is made from durable ABS plastic and clips directly into the overhead console. The six‑gang layout allows customization for auxiliary lighting, fans, or other accessories.
A flat plate with precisely punched holes used to mount switches or indicators in the sleeper panel. It provides a clean, professional finish and ensures a secure fit for aftermarket additions.
This switch controls the driver‑side window operation from the sleeper compartment. It features a two‑position rocker for up/down movement and includes an illuminated icon for night visibility.
The counterpart for the passenger‑side window, allowing the sleeper occupant to adjust ventilation without moving. Both switches are wired through the central door control module.
A momentary rocker switch that controls the electric sunroof tilt and slide functions. It is mounted on the overhead panel and includes a safety interlock to prevent over‑travel.
A compact USB‑A port designed for charging smaller devices like smartwatches or e‑readers. It delivers up to 1.5A and is integrated into the sleeper side panel.
This complete wiring harness connects all sleeper electrical components to the vehicle’s main power and control systems. It includes a dedicated sleeper control switch that enables independent operation of lights, fans, and power outlets.
A rigid steel plate that mounts the sleeper control module securely to the rear wall. It isolates the module from vibration and provides a stable platform for connectors.
This is a pre‑cut interior trim panel that accommodates the sleeper control module. It replaces the original liner, providing a factory‑fit opening with all necessary mounting points and cable routing channels.
Every switch, harness, and panel is precisely engineered for the Sitrak C7H sleeper. Direct plug‑and‑play installation without any modification to existing wiring or trim.
With dedicated controls for windows, sunroof, and USB charging, drivers can rest and recharge without leaving the sleeper. This improves rest quality and overall well‑being.
All components are built with automotive‑grade plastics, corrosion‑resistant terminals, and copper wiring. They meet Sinotruk’s durability standards for commercial vehicle interiors.
We supply every required part – from the main harness to the smallest mounting screws. No extra purchases needed; just follow the included diagram for a hassle‑free upgrade.
The Electrical Equipment in the Sleeping Car Section transforms the C7H sleeper into a comfortable, connected space. This system includes all switches, ports, and wiring needed for modern driver amenities.
Factory‑designed components ensure seamless integration with the vehicle’s CAN bus and power distribution. Unlike universal aftermarket parts, these units communicate correctly with the body controller, avoiding error codes.
Installation typically takes less than two hours. Begin by disconnecting the battery, then remove the existing trim panels. Route the new harness along the factory channels, and secure all connectors with the included clips.
The rocker switch mounting frame supports six switches, allowing you to add extra functions such as interior lighting, a fan, or a 12V outlet. The frame snaps into the overhead console without tools.
The straight hole plate is a versatile accessory for custom installations. It can accommodate USB ports, auxiliary gauges, or even a small display for monitoring tire pressures.
Window lift switches are ergonomically designed with tactile feedback. The left and right switches are color‑coded to avoid confusion, and they include an auto‑down feature for quick ventilation.
The electric sunroof switch operates the tilt and slide functions with a single push. It is rated for 10,000 cycles and includes an LED indicator that shows when the sunroof is open.
Two USB charging points are provided – one standard size and one small port. The small port is ideal for powering wearable devices or wireless earbuds while the driver sleeps.
The Sleeper Wiring Harness is the backbone of the system. It is pre‑terminated with all necessary connectors and includes a master control switch that toggles power to the entire sleeper zone.
The support plate and rear wall liner are specifically contoured for the C7H cabin. They create a flush, factory‑look finish and provide a solid mounting base for the control module.
We recommend replacing the entire set when upgrading, as mixing old and new components may cause compatibility issues. Our kit is designed to work as a unified system.
Fleet operators benefit from standardized electrical equipment across their trucks. Using genuine parts reduces troubleshooting time and simplifies spare parts inventory.
All switches are rated at 12V and 10A, sufficient for most sleeper accessories. The wiring harness uses cross‑linked polyethylene insulation for resistance to abrasion and heat.
For drivers who spend nights on the road, this equipment turns the sleeper into a home away from home. The ability to charge devices and control the cabin environment greatly enhances quality of life.
We stand behind the reliability of our Electrical Equipment in the Sleeping Car Section. Each component undergoes 100% functional testing before shipment, ensuring you receive a fully operational kit.
To place an order or request a quote, use the buttons above. Our team is ready to assist with any technical questions regarding the installation or compatibility of these components.
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.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
