Sinotruk Knob Headlight Switch WG9918580009
| Product Name | Knob Headlight Switch |
| Product Number | WG9918580009 |
| MOQ | 1 |
| Warranty period | 3 Months |
| Package | Carton |
| Application | Sinotruk |
| Original | China |
Product Description
Product Introduction
This Knob Headlight Switch WG9918580009 is an OEM control component for Sinotruk heavy-duty trucks (e.g., HOWO A7, T7H, SITRAK C7H/G7S). It features a circular black plastic housing with a central rotary knob, clearly marked with white function icons for different lighting modes. Designed for installation on the vehicle’s dashboard, it provides a reliable, tactile control interface for managing the vehicle’s exterior lighting system. Manufactured to strict quality standards, it ensures durable performance in high-vibration, dusty, and extreme temperature operating environments.
Core Functions
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Multi-Mode Lighting Control: The rotary knob allows the driver to select from multiple lighting modes, including off (0), parking lights, low beam headlights, high beam headlights, and front fog lights, ensuring optimal visibility in various driving conditions.
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Intuitive Operation: The clearly marked icons and ergonomic knob design enable quick and intuitive operation, allowing the driver to adjust lighting without taking their eyes off the road.
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Durable Mechanism: Precision-engineered internal detents and contacts ensure consistent, reliable switching between modes, preventing intermittent operation or failure over extended use.
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Snap-in Installation: Features a snap-in mounting design for quick and secure installation into the dashboard, minimizing vehicle downtime during replacement.
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OEM Compatibility: Matches the original vehicle’s dashboard cutout and electrical specifications, ensuring a perfect fit and seamless integration with the vehicle’s lighting system.
Sinotruk Knob Headlight Switch WG9918580009 – OEM Lighting Control for HOWO & SITRAK Trucks
The Sinotruk Knob Headlight Switch WG9918580009 is a factory-grade rotary lighting control unit engineered for heavy-duty truck applications. Designed as a direct-fit replacement for HOWO A7, T7H, and SITRAK C7H/G7S models, this headlight switch delivers precise, tactile operation across all exterior lighting modes. Mettlead supplies this genuine Sinotruk component at factory-direct pricing with fast global delivery — helping fleet managers and parts distributors reduce downtime and procurement costs.
Key Features and Benefits of the Sinotruk Knob Headlight Switch WG9918580009
Precision Rotary Control
The central knob mechanism provides clearly defined detent positions with white-printed function icons, allowing drivers to switch between lighting modes quickly and accurately — even while wearing work gloves. This Sinotruk headlight switch eliminates guesswork during nighttime or low-visibility operations.
Built for Extreme Operating Conditions
Heavy-duty trucks face constant vibration, dust ingress, and temperature extremes ranging from -40°C to +85°C. The WG9918580009 knob headlight switch uses reinforced plastic housing and corrosion-resistant internal contacts to maintain reliable electrical performance throughout the vehicle's service life.
OEM-Exact Fitment
This switch matches original Sinotruk specifications for connector pinout, mounting dimensions, and electrical ratings. It installs directly into the dashboard panel without modification, ensuring seamless integration with the truck's existing wiring harness and lighting system.
Reduced Procurement Cost
Mettlead sources the Sinotruk Knob Headlight Switch WG9918580009 directly from certified production lines in China, eliminating intermediary markups. Bulk buyers and distributors benefit from competitive unit pricing without sacrificing quality assurance.
Technical Specifications
| Parameter | Detail |
|---|---|
| OEM Part Number | WG9918580009 |
| Brand | Sinotruk (CNHTC) |
| Product Type | Knob Headlight Switch / Rotary Lighting Control |
| Compatible Models | HOWO A7, HOWO T7H, SITRAK C7H, SITRAK G7S |
| Housing Material | High-impact ABS Plastic (Black) |
| Marking | White function icons (lighting modes) |
| Operating Temperature | -40°C to +85°C |
| Rated Voltage | 24V DC |
| Installation Location | Dashboard panel (driver side) |
| Connector Type | OEM-standard multi-pin plug |
| Quality Standard | OEM-equivalent, strict QC inspection |
| Packaging Options | Original / Neutral / Custom (White-label available) |
OEM and ODM Capabilities
White-Label and Custom Packaging
Mettlead offers flexible packaging solutions for the Sinotruk Knob Headlight Switch WG9918580009. Whether you need original Sinotruk branding, neutral export packaging, or fully customized labels with your company logo and part numbering system, we accommodate orders of all sizes.
Strict Quality Control
Every batch of WG9918580009 headlight switches undergoes multi-stage inspection — including dimensional verification, electrical continuity testing, and rotary life-cycle testing — before shipment. Our QC process ensures each unit meets or exceeds original equipment performance standards.
Complete Sinotruk Parts Supply
Beyond this headlight switch, Mettlead maintains a comprehensive inventory of Sinotruk HOWO truck parts and spare parts, covering engine, transmission, chassis, cab, and electrical system components. Consolidate your orders with a single supplier to simplify logistics and reduce shipping costs.
Frequently Asked Questions
Is the WG9918580009 headlight switch compatible with my truck model?
This Sinotruk Knob Headlight Switch WG9918580009 is designed for HOWO A7, HOWO T7H, SITRAK C7H, and SITRAK G7S series trucks. If you operate a different Sinotruk model, send us your VIN or current part number and our team will confirm compatibility within 24 hours.
What is the minimum order quantity?
Mettlead supports flexible order quantities — from single-piece sample orders to bulk container shipments. Volume discounts are available for recurring procurement contracts.
How long does delivery take?
In-stock items typically ship within 1–3 business days. Standard international delivery ranges from 7–25 days depending on destination and shipping method. Express air freight options are available for urgent requirements.
Can I visit your facility before placing a large order?
Yes. Mettlead welcomes factory visits and facility inspections. We can arrange guided tours of our warehouse and quality control operations so you can verify our capabilities firsthand.
What payment methods do you accept?
We support T/T (bank transfer), Western Union, and trade assurance options. All payment channels are secure and verifiable, with formal invoicing provided for every transaction.
Get a Competitive Quote for the Sinotruk Knob Headlight Switch WG9918580009
Ready to secure reliable pricing and fast delivery on the WG9918580009 knob headlight switch? Mettlead's dedicated sales team responds to inquiries within 12 hours with detailed quotations including unit price, lead time, and shipping options tailored to your location.
Contact us now
with your required quantity and delivery destination. Let Mettlead be your trusted long-term supplier for Sinotruk heavy truck electrical components.









