Sinotruk Door Light Switch WG9719790001
| Product Name | Door Light Switch |
| Product Number | WG9719790001 |
| MOQ | 1 |
| Warranty period | 3 Months |
| Package | Carton |
| Application | Sinotruk |
| Original | China |
Product Description
Product Introduction
This Door Light Switch WG9719790001 is an OEM safety control component for Sinotruk heavy-duty trucks (e.g., HOWO 371, 336, T5G, A7). It features a compact black plastic housing with a spring-loaded plunger, a gold-plated electrical contact, and a metal terminal for wiring. Designed for installation in the door frame, it adheres to strict OEM standards for reliability and durability, ensuring consistent performance in high-vibration, dusty, and temperature-fluctuating operating environments.
Core Functions
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Door Status Detection: The spring-loaded plunger detects when the vehicle door is open or closed, triggering the interior light to turn on or off automatically for enhanced visibility and safety when entering or exiting the cab.
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Anti-Theft Alert Integration: When integrated with the vehicle’s security system, the switch can trigger an alarm if the door is opened without authorization, providing an additional layer of anti-theft protection.
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Durable Contact Design: The gold-plated internal contact ensures consistent electrical conductivity and resistance to corrosion, preventing intermittent operation or failure over extended use.
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Sealed & Weather-Resistant: The robust plastic housing and sealed plunger mechanism protect the internal components from moisture, dust, and debris, ensuring reliable operation in harsh conditions.
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OEM Compatibility: Precisely matches the original vehicle’s door frame mounting points and electrical specifications, supporting direct replacement without modification.
Sinotruk Door Light Switch WG9719790001 – OEM Safety Component for HOWO Heavy-Duty Trucks
When it comes to maintaining safety standards on Sinotruk heavy-duty trucks, every component matters — especially the ones that operate silently in the background. The Sinotruk Door Light Switch WG9719790001 is a precision-engineered OEM control component designed to deliver reliable door-status signaling across the harshest operating conditions. Whether you manage a fleet of HOWO 371s or supply replacement parts for T5G and A7 models, this genuine-spec door light switch ensures consistent electrical performance, trip after trip.
At Mettlead, we supply this Sinotruk Door Light Switch WG9719790001 directly from our factory in China — giving procurement managers access to competitive pricing, fast lead times, and the exact OEM-grade quality your workshop or fleet demands. As a dedicated supplier of Sinotruk HOWO truck parts, we understand the critical role each electrical component plays in vehicle safety and uptime.
Key Features and Benefits of the Sinotruk Door Light Switch WG9719790001
This door light switch is far more than a simple on/off mechanism. It is purpose-built for the demanding environment inside a Sinotruk cab door frame. Here is what sets it apart:
- Gold-Plated Electrical Contact – Resists corrosion and oxidation, ensuring a stable signal even after thousands of door cycles in humid or dusty conditions.
- Spring-Loaded Plunger Mechanism – Provides positive tactile engagement and disengagement, eliminating false triggers caused by road vibration.
- Compact Black Plastic Housing – Engineered from high-impact, heat-resistant polymer that withstands temperature fluctuations from -40°C to +80°C without cracking or warping.
- Metal Wiring Terminal – Offers secure, low-resistance connection to the vehicle harness, reducing the risk of intermittent faults.
- Direct OEM Fitment – Matches the original Sinotruk specification for bolt pattern, plunger travel, and electrical rating — no modifications required.
For fleet operators and parts distributors, the practical benefit is clear: fewer warranty returns, reduced downtime, and full compliance with Sinotruk's original safety design. Additionally, because this switch controls the interior courtesy light circuit, a properly functioning unit contributes to driver safety during nighttime loading and unloading operations.
Technical Specifications
Below is the complete specification table for the Sinotruk Door Light Switch WG9719790001. These parameters confirm direct compatibility with multiple HOWO and Sitrak cab variants:
| Parameter | Detail |
|---|---|
| OEM Part Number | WG9719790001 |
| Brand Compatibility | Sinotruk HOWO 371, HOWO 336, HOWO T5G, HOWO A7, Sitrak |
| Component Type | Door Light Switch (Courtesy Light Control) |
| Housing Material | High-impact black plastic (heat-resistant polymer) |
| Contact Material | Gold-plated copper alloy |
| Terminal Type | Metal blade terminal |
| Actuation Method | Spring-loaded plunger (normally closed) |
| Rated Voltage | 24V DC |
| Operating Temperature | -40°C to +80°C |
| Installation Location | Door frame (driver side / passenger side) |
| Certification Standard | OEM equivalent (Sinotruk factory specification) |
| Weight | Approx. 25g |
Need this Sinotruk Door Light Switch WG9719790001 in bulk? Our minimum order quantities are flexible, and we maintain ready stock for fast dispatch. Browse our full range of Sinotruk electrical components to consolidate your order and reduce shipping costs.
OEM and Custom Packaging Capabilities
Mettlead goes beyond simply supplying parts. As a factory-direct source for Chinese heavy truck components, we offer services that add real value to your supply chain:
- Strict Quality Control – Every batch of Sinotruk Door Light Switch WG9719790001 units undergoes electrical continuity testing, plunger cycle-life verification, and dimensional inspection before shipment.
- White-Label and Custom Packaging – Distributors and resellers can request neutral packaging or branded boxes with their own logo, part labels, and barcodes — ideal for aftermarket retail or private-label programs.
- Factory Visit Welcome – We encourage procurement teams to visit our facility in China for on-site quality audits and face-to-face discussions on long-term supply agreements.
- Flexible Payment Terms – We support T/T, L/C, and trade assurance options to match your company's financial workflow.
This combination of quality assurance and supply flexibility is why fleet operators, parts wholesalers, and workshop chains across Africa, the Middle East, Southeast Asia, and South America trust Mettlead as their go-to Sinotruk parts supplier.
Frequently Asked Questions
Is this Sinotruk Door Light Switch WG9719790001 an original OEM part?
This switch is manufactured to the exact OEM specification defined by Sinotruk for part number WG9719790001. It delivers identical fitment, electrical performance, and durability as the factory-installed component. Mettlead sources directly from certified production lines in China, so you receive genuine-quality parts at a factory-direct price.
Which Sinotruk truck models does the WG9719790001 door light switch fit?
The Sinotruk Door Light Switch WG9719790001 is compatible with HOWO 371, HOWO 336, HOWO T5G, HOWO A7, and select Sitrak cab configurations. If you are unsure about fitment for a specific chassis number, our technical team can verify compatibility before you place your order.
What is the minimum order quantity (MOQ)?
Our MOQ is flexible and depends on your total order value. For the Sinotruk Door Light Switch WG9719790001 specifically, we can accommodate orders ranging from small workshop quantities to container-load volumes for national distributors. Contact us for a tailored quotation.
How do you ensure quality for this door light switch?
Each unit passes a multi-point inspection process that includes plunger actuation testing (minimum 50,000 cycles), contact resistance measurement, and housing integrity checks. We also offer third-party inspection coordination if your procurement policy requires it.
What is the typical lead time and shipping method?
In-stock items ship within 2–5 business days. For larger orders or custom-packaged batches, production lead time is typically 7–15 days. We ship via DHL, FedEx, sea freight, or your nominated forwarder — whichever best balances speed and cost for your destination.
Get Your Quotation for the Sinotruk Door Light Switch WG9719790001
Ready to secure competitive pricing on this essential Sinotruk safety component? Whether you need 50 pieces for workshop stock or 5,000 units for regional distribution, Mettlead delivers the quality, price, and service your business depends on.
Contact us now
to request a detailed quotation, confirm lead times, or ask our team any technical questions about the Sinotruk Door Light Switch WG9719790001. We typically respond within 12 hours on business days.
Mettlead — Your factory-direct partner for Sinotruk, HOWO, Shacman, FAW, Weichai, Dongfeng, and Foton heavy truck parts worldwide.
