I. Core Product Information
Product Function: WG9716582003 is a non-common rail mini controller for SINOTRUK HOWO heavy trucks, mainly responsible for centralized control of vehicle body electrical appliances such as turn signals, hazard warning lights, fog lights, position lights, wipers, and washers. It integrates input signal collection, logic judgment, and output execution, simplifying the vehicle wiring harness layout, improving electrical system reliability, and reducing failure points. It is a simplified version without a trailer interface, suitable for vehicles without a trailer configuration.
Compatibility Details:
Applicable Vehicles: SINOTRUK HOWO A7/T7H/TH7 heavy trucks (non-trailer models), tractors, dump trucks (non-trailer configuration)
Compatible Systems: Vehicle body electrical control system (non-common rail), lighting, wiper, and other electrical sub-systems
OE/OEM Number: WG9716582003 (direct original replacement, perfect interchangeability)
Matching Tip: Standard plug-in interface, no need to modify the wiring harness, supports precise matching by VIN code
Key Specifications:
| Item | Details |
|---|---|
| Working Voltage | 24V (heavy truck standard) |
| Net Weight | 0.85kg |
| Overall Size | 180mm×120mm×60mm |
| Material | Shell: ABS engineering plastic (flame-retardant grade); Circuit board: FR-4 glass fiber board; Connectors: Copper alloy (gold-plated) |
| Operating Temperature | -40℃ ~ 85℃ |
| Storage Temperature | -50℃ ~ 100℃ |
| Protection Grade | IP67 (dustproof and waterproof) |
| Input/Output Channels | 12 input channels, 8 output channels |
| Service Life | ≥100,000km/3 years (normal working conditions) |
II. Quality & Performance Guarantee
We adopt high-quality flame-retardant engineering plastics and gold-plated connectors, with batch material certification. Production processes include SMT chip mounting, wave soldering, precision assembly, high/low-temperature aging test, and waterproof test. Automated production lines have an annual output of 150,000 units, stably supporting small and large batch procurement needs.
Three quality tiers are available for diverse demands: Genuine (strictly complies with SINOTRUK original technical standards, suitable for original vehicle maintenance), OEM Grade (balances performance and cost, high cost-effectiveness), High-quality Aftermarket (stable operation for regular use). The factory is ISO9001 certified; 100% outgoing inspection covers voltage stability, signal response speed, waterproof performance, and high/low-temperature operation reliability. Each unit is marked with a unique serial number for batch traceability.
III. Procurement & Service Support
Procurement Terms: Long-term spot supply (regular stock ≥1000 units), MOQ=1 unit (sample available), wholesale price for orders ≥150 units. Regular orders are shipped within 48 hours after payment; bulk orders (≥500 units) have a 5-7 working day delivery cycle.
Packaging & Labeling: Optional neutral cartons, custom brand packaging, export shockproof packaging; each unit is wrapped with EPE foam, and the connector is protected by a dust cover. The label includes serial number, OE number, production date, quality grade, and voltage parameters.
After-sales & Customization:
Warranty: Genuine (12 months/100,000km), OEM Grade (10 months/80,000km), High-quality Aftermarket (6 months/60,000km) - free replacement for non-human damage such as water ingress burnout, signal failure, and connector oxidation
Technical Support: Provide free compatibility verification, wiring diagram, pin definition explanation, and fault diagnosis guidance
OEM/ODM Service: Accept customized input/output channels and interface types according to customer requirements; minimum 100 units for small-batch customization (10-15 working days cycle)
IV. Application Cases & FAQ
Practical Applications: Mainstream body electrical control component for SINOTRUK HOWO heavy trucks, widely used in China, Southeast Asia, the Middle East, and other regions. It is suitable for non-trailer heavy trucks, engineering vehicles, and mining dump trucks, with cumulative domestic installations exceeding 120,000 units and annual overseas shipments over 30,000 units.
FAQ
1.What is the difference between WG9716582003 and other models of mini controllers?
It is a simplified version without a trailer interface; WG9716582004 is a full-function version, WG9716582001/2002 are versions without exhaust braking and preheating functions.
2.Can it be used in common rail engine vehicles?
No, it is specially designed for non-common rail engine vehicles; common rail models need to be equipped with a corresponding CAN bus mini controller.
3.Does the product include a wiring harness?
It does not include a wiring harness, but it is compatible with the original vehicle wiring harness, and the plug can be directly connected without modification.
4.How to judge the failure of the mini controller?
Common failure phenomena include non-working lights, abnormal wipers, etc. It can be judged by detecting the input and output voltage of the controller and the continuity of the wiring harness.
5.What is the protection grade of the product?
The protection grade is IP67, which can effectively prevent dust and rainwater from entering and adapt to various harsh working environments.
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