Sinotruk Sitrak Left Combinatory Switch 811W25509-0145
| Product Name | Left Combinatory Switch |
| Product Number | 811W25509-0145 |
| MOQ | 1 |
| Warranty period | 3 Months |
| Package | Carton |
| Application | Sinotruk Sitrak |
| Original | China |
Product Description
Product Introduction
This Left Combinatory Switch 811W25509-0145 is an OEM steering column control component exclusively for Sinotruk heavy-duty trucks (e.g., Howo, Sitrak series). It features a rugged gray ABS plastic handle with an ergonomic rotary/push-button design, a sealed metal mounting base, and a color-coded multi-core wiring harness with an OEM-standard orange waterproof connector. Engineered as the primary left-side control hub for the vehicle’s core electrical systems, it is manufactured to strict Sinotruk OEM specifications, with reinforced internal contacts and vibration-resistant wiring, ensuring stable performance in high-vibration, long-haul operating environments.
Core Function
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Integrated Core Control: Consolidates key vehicle functions into one ergonomic steering column handle, including headlight high/low beam switching, turn signal activation, horn triggering, and wiper/washer control (intermittent, low/high speed, spray).
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Ergonomic Operation: The rotary knob and push-button design enable one-handed operation without removing hands from the steering wheel, reducing driver fatigue and improving driving safety during long-distance transportation.
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Superior Vibration Resistance: The internal copper alloy contacts with gold-plated treatment ensure low contact resistance and no intermittent failure; the wiring harness is wrapped in high-abrasion-resistant insulation, adapting to the long-term vibration of heavy-duty truck chassis.
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Reliable Sealing Protection: The mounting base adopts a rubber sealing ring structure, and the connector is IP67 waterproof rated, effectively preventing water, dust, and oil from entering the internal circuit, and adapting to complex working conditions such as rain and snow.
Sinotruk Sitrak Left Combinatory Switch 811W25509-0145 | OEM Steering Column Control
When your fleet depends on uninterrupted electrical control, the Sinotruk Sitrak Left Combinatory Switch 811W25509-0145 delivers the reliability that long-haul operations demand. As a critical steering column component for Sinotruk heavy-duty trucks, this left combinatory switch integrates turn signal, lighting, and wiper functions into one ergonomic, OEM-engineered unit. Mettlead supplies this genuine-spec part at factory-direct prices, with strict quality control and fast global delivery — so your trucks stay on the road and your maintenance costs stay low.
Key Features and Benefits of the Sinotruk Sitrak Left Combinatory Switch 811W25509-0145
Choosing the right combinatory switch is essential for safe, efficient fleet operation. Here is why procurement managers across Africa, the Middle East, Southeast Asia, and Latin America trust this Sinotruk Sitrak left combinatory switch for their heavy-duty truck maintenance programs:
- OEM-Standard Compatibility: Designed exclusively for Sinotruk platforms including Howo and Sitrak series trucks, the 811W25509-0145 left combinatory switch ensures a precise, plug-and-play fit with no modifications required.
- Rugged ABS Plastic Construction: The gray ABS handle withstands daily driver use, UV exposure, and temperature extremes common in demanding transport environments.
- Ergonomic Rotary and Push-Button Design: Intuitive multi-function control reduces driver fatigue and improves response time for turn signals, headlights, and wipers.
- Sealed Metal Mounting Base: A reinforced metal base provides vibration-resistant anchoring to the steering column, preventing loosening over thousands of kilometers.
- Color-Coded Multi-Core Wiring Harness: Simplifies installation and troubleshooting. The OEM-standard orange waterproof connector ensures a secure, moisture-proof electrical connection.
- Reinforced Internal Contacts: Heavy-duty copper-alloy contacts resist arcing and corrosion, extending service life even under high-frequency switching loads.
- Vibration-Resistant Wiring: Engineered for high-vibration, long-haul operating environments, eliminating intermittent electrical faults that cause costly downtime.
In other words, this Sinotruk Sitrak Left Combinatory Switch 811W25509-0145 is not just a replacement part — it is a reliability investment for your entire fleet's electrical system.
Technical Specifications
Below is the detailed specification table for the Left Combinatory Switch 811W25509-0145. Use this data to verify fitment and compare against your current inventory requirements:
| Parameter | Specification |
|---|---|
| Part Number (OEM) | 811W25509-0145 |
| Brand Compatibility | Sinotruk — Sitrak, Howo series |
| Position | Left side, steering column |
| Function | Turn signal, headlight, wiper control (combinatory) |
| Handle Material | Rugged gray ABS plastic |
| Mounting Base | Sealed metal construction |
| Connector Type | OEM-standard orange waterproof connector |
| Wiring | Color-coded multi-core harness |
| Internal Contacts | Reinforced copper-alloy, anti-arc |
| Operating Environment | High-vibration, long-haul heavy-duty |
| Quality Standard | Sinotruk OEM specification |
| Packaging Options | Original / Neutral / Custom (white-label available) |
| Origin | China (factory-direct via Mettlead) |
OEM and ODM Capabilities — Custom Packaging and Bulk Supply
Mettlead is more than a parts supplier — we are your strategic sourcing partner for Sinotruk Sitrak left combinatory switch units and the full range of Chinese heavy-duty truck components. Our OEM/ODM capabilities include:
- White-Label and Custom Packaging: Build your own brand in your local market. We offer neutral packaging or fully customized boxes with your logo, part numbers, and language-specific labels.
- Strict Quality Control: Every 811W25509-0145 left combinatory switch undergoes multi-point inspection — including contact resistance testing, connector seal verification, and mechanical cycling tests — before shipment.
- Full Product Range: Beyond this Sitrak combinatory switch, Mettlead supplies electrical components, engine parts, chassis parts, and cabin accessories for SINOTRUK, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON platforms. Explore our complete Sitrak Heavy-Duty Parts catalog or browse all Electrical System components.
- Flexible MOQ and Payment: We accommodate both trial orders and container-load quantities, with secure payment options including T/T, L/C, and trade assurance.
- Factory Visits Welcome: We invite procurement teams to visit our facilities in China for on-site quality audits and relationship building.
Frequently Asked Questions — Sinotruk Sitrak Left Combinatory Switch 811W25509-0145
What truck models does the 811W25509-0145 left combinatory switch fit?
This left combinatory switch is engineered specifically for Sinotruk heavy-duty truck platforms, including the Sitrak C7H, Sitrak C5H, and Howo T7H/A7 series. Always confirm your vehicle's steering column configuration with the OEM part number 811W25509-0145 to ensure exact fitment.
Is this a genuine OEM part or aftermarket?
Mettlead supplies this Sinotruk Sitrak Left Combinatory Switch 811W25509-0145 manufactured to strict Sinotruk OEM specifications. It meets the same dimensional, electrical, and durability standards as the original factory-installed unit. Additionally, we offer white-label packaging for distributors who prefer to sell under their own brand.
What is the lead time and minimum order quantity?
Standard stock items typically ship within 3–7 business days. For bulk or custom-packaged orders, lead time is approximately 15–25 days depending on quantity. MOQ is flexible — contact us for a tailored quote based on your volume needs.
How do you ensure quality for the 811W25509-0145 combinatory switch?
Every unit passes a multi-stage quality control process: visual inspection, connector waterproof seal testing, contact resistance measurement, and mechanical cycling endurance tests. Defective rates are maintained below 0.3%, and we provide replacement guarantees for any quality issues.
Can I order other Sinotruk electrical parts together?
Absolutely. Mettlead stocks a comprehensive range of Sinotruk electrical system parts — including right combinatory switches, wiper motors, headlight assemblies, and dashboard sensors. Consolidating your order reduces shipping costs and simplifies your supply chain. View our full electrical parts category for details.
Request Your Quote — Get Factory-Direct Pricing Today
Ready to secure competitive pricing on the Sinotruk Sitrak Left Combinatory Switch 811W25509-0145? Whether you need a sample for testing or a bulk shipment for your warehouse, Mettlead's team is ready to provide a fast, detailed quotation with shipping options to your region.
Take the next step:
- Get a personalized quote within 24 hours
- Ask about volume discounts and custom packaging
- Inquire about combined orders across our full Sitrak and Sinotruk parts range
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Contact Mettlead Now
— Send us your part number, quantity, and destination, and our export team will respond with a competitive offer, shipping timeline, and payment options. No obligation, no delays.
Mettlead — Your trusted China-direct source for Sinotruk, Sitrak, Howo, Shacman, FAW, Weichai, Dongfeng, and Foton heavy-duty truck parts. Factory pricing. Global delivery. Proven quality.
