Electrical Junction Box Assembly WG9716582301 Sinotruk Sitrak

Product Introduction

This Electrical Junction Box Assembly WG9716582301 is the OEM central electrical control hub for heavy-duty trucks (e.g., Sinotruk Howo series). It features a robust black plastic housing that integrates a complete set of color-coded blade fuses, multiple dedicated relays (including JD2911D, JD2910S, and other OEM-spec models), and multi-pin connector sockets for the vehicle’s main wiring harness. Engineered to consolidate and protect all critical electrical circuits, it is manufactured to strict OEM specifications to ensure reliable performance in high-vibration, dusty, and high-temperature commercial vehicle environments.

Core Function

1. Centralized Circuit Management: Serves as the primary distribution point for the vehicle’s 24V electrical system, organizing and routing power to all major systems including lighting, ignition, ABS, and auxiliary equipment.

2. Overload & Short Circuit Protection: The integrated color-coded fuses (ranging from 5A to 30A) provide precise overcurrent protection for individual circuits, preventing damage to sensitive electronic components and wiring harnesses.

3. High-Current Load Control: The dedicated OEM relays (15A, 20A, 30A, 40A) efficiently control high-power electrical systems such as the starter motor, air compressor, and auxiliary lighting, protecting delicate control modules from excessive current.

4. Diagnostic & Service Convenience: The clearly labeled fuse and relay positions, along with the multi-pin connector sockets, simplify troubleshooting, maintenance, and component replacement, minimizing vehicle downtime.

5. Perfect Compatibility: Strictly adheres to OEM design standards, featuring a factory-matched pin configuration and mounting points for seamless integration with the vehicle’s wiring harness and electrical control system, ensuring 100% compatibility with the original assembly.