40A Open Relay WG9725584001 Sinotruk Sitrak
| Product Name | 40A Open Relay |
| Product Number | WG9725584001 |
| MOQ | 1 |
| Warranty period | 3 Months |
| Package | Carton |
| Application | Sinotruk Sitrak |
| Original | China |
Product Description
Product Introduction
This 40A Open Relay WG9725584001 is an OEM electrical control relay for heavy-duty trucks (Sinotruk Howo series). It is a 24V normally open (NO) type with a 40A high-current capacity, featuring a sealed plastic housing and standard automotive relay pins. Built to heavy-duty vehicle standards, it ensures stable performance in high-vibration, dusty, high-temperature engine compartments.
Core Function
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High-current load control: Controls 40A high-power electrical circuits (fans, lights, motors, etc.) with low-current signals, protecting the main control module.
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Normally open design: Default open circuit; closes only when powered, safe for most truck electrical systems.
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Stable & durable: Sealed structure is dustproof, moisture-proof, and anti-vibration for long service life.
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Plug-and-play: Matches original pin definition and socket for direct replacement.
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Perfect compatibility: OEM-spec for Sinotruk Howo series, reliable and long-lasting.
40A Open Relay WG9725584001 – OEM Sinotruk Sitrak Heavy-Duty Truck Relay
Looking for a reliable 40A open relay WG9725584001 that delivers consistent electrical switching performance in the harshest operating conditions? This OEM-grade Sinotruk Sitrak relay is engineered specifically for heavy-duty truck electrical systems, offering a 24V normally open design with 40A high-current capacity. Mettlead supplies this genuine part at factory-direct pricing, ensuring procurement managers get the best value without compromising on quality or lead time.
As a trusted global supplier of Sitrak heavy-duty truck parts, Mettlead delivers the WG9725584001 40A open relay with strict quality control, competitive pricing, and fast international shipping — everything a B2B buyer needs to keep fleet operations running smoothly.
Key Features and Benefits of the 40A Open Relay WG9725584001 Sinotruk Sitrak
This 40A open relay WG9725584001 is purpose-built for the demanding electrical systems found in Sinotruk Howo and Sitrak series trucks. Here's why fleet managers and procurement professionals choose this relay:
- 40A High-Current Switching Capacity – Handles heavy electrical loads reliably, making it ideal for controlling headlights, fans, fuel pumps, and auxiliary systems on Sinotruk Sitrak trucks.
- 24V Normally Open (NO) Configuration – Designed specifically for heavy-duty 24-volt vehicle electrical architectures, ensuring seamless OEM compatibility.
- Sealed Plastic Housing – Provides excellent protection against dust, moisture, and contaminants commonly found in engine compartments, extending service life significantly.
- High-Vibration Resistance – Engineered to maintain stable contact performance even under the constant vibration of heavy-duty truck operation over rough terrain.
- Standard Automotive Relay Pinout – Drop-in replacement with no wiring modifications required, reducing installation time and labor costs.
- Wide Temperature Tolerance – Performs reliably in the extreme heat generated within engine compartments, preventing premature failure.
- OEM Part Number WG9725584001 – Guarantees exact-fit compatibility with Sinotruk Howo and Sitrak vehicle platforms.
In other words, this Sinotruk Sitrak 40A open relay minimizes downtime and maintenance costs while maximizing electrical system reliability across your entire fleet.
Technical Specifications
Below is the complete specification table for the 40A open relay WG9725584001 Sinotruk Sitrak:
| Parameter | Specification |
|---|---|
| OEM Part Number | WG9725584001 |
| Relay Type | Normally Open (NO) – Open Relay |
| Rated Voltage | 24V DC |
| Contact Current Rating | 40A |
| Compatible Brands | Sinotruk, Sitrak, Howo |
| Housing Material | Sealed Plastic (Dust & Moisture Resistant) |
| Pin Configuration | Standard Automotive Relay Pins (4-pin) |
| Operating Temperature | -40°C to +85°C |
| Vibration Resistance | Heavy-Duty Vehicle Grade |
| Application | Engine Compartment Electrical Control |
| Supplier | Mettlead (Factory Direct) |
| Quality Control | 100% Tested Before Shipment |
OEM/ODM Capabilities – Custom Packaging and White-Label Options
Mettlead understands that different markets have different branding requirements. That's precisely why we offer flexible OEM and ODM services for the 40A open relay WG9725584001 Sinotruk Sitrak and our entire electrical parts catalog:
- White-Label Packaging – We supply this relay with your own brand label, allowing distributors and wholesalers to build their brand identity in local markets.
- Custom Packaging Solutions – Whether you need bulk packaging for warehouse distribution or individual retail-ready boxes, we accommodate your specific requirements.
- Flexible MOQ – We work with both large fleet operators placing bulk orders and smaller distributors testing new markets.
- Strict Quality Control – Every WG9725584001 40A open relay undergoes rigorous testing before shipment, ensuring zero-defect delivery to your warehouse.
- Factory Visit Welcome – We invite procurement teams to visit our facilities in China to inspect production processes and build long-term supply partnerships.
Moreover, as a comprehensive supplier of SINOTRUK, SITRAK, HOWO, SHACMAN, FAW, WEICHAI, DONGFENG, and FOTON truck parts, Mettlead enables you to consolidate multiple part orders into a single shipment — reducing logistics costs and simplifying your supply chain.
Frequently Asked Questions
Is the WG9725584001 relay an original OEM part?
Yes, the 40A open relay WG9725584001 is manufactured to OEM specifications for Sinotruk Sitrak and Howo heavy-duty trucks. It is a direct replacement that matches the original factory part in dimensions, electrical ratings, and pin configuration.
What trucks is this 40A open relay compatible with?
This relay is designed for Sinotruk Howo and Sitrak series heavy-duty trucks that use the WG9725584001 part number in their electrical systems. If your vehicle's service manual specifies this part number, it is a guaranteed fit.
What is the minimum order quantity (MOQ)?
Mettlead offers flexible order quantities to suit different buyer needs. Whether you need a small trial order or thousands of units for fleet maintenance programs, we can accommodate your requirements. Contact us for a customized quote based on your volume.
How long is the delivery lead time?
As a factory-direct supplier, we maintain stock of popular parts including the WG9725584001 Sinotruk Sitrak 40A open relay. Standard orders typically ship within 3–7 business days. For large volume orders, lead times may vary — reach out to our team for precise delivery schedules.
Do you offer quality guarantees?
Absolutely. Every relay undergoes 100% functional testing before packaging. Additionally, Mettlead provides a quality guarantee on all parts. If any product arrives defective, we offer replacement or refund — no questions asked.
Can I get custom branding on the packaging?
Yes. We offer white-label and custom packaging services for distributors who want to sell under their own brand. This applies to the 40A open relay WG9725584001 as well as our full range of Sitrak heavy-duty parts.
Get Your Quote Today – Factory-Direct Pricing on WG9725584001
Ready to secure competitive pricing on the 40A open relay WG9725584001 Sinotruk Sitrak? Mettlead offers factory-direct rates, fast global shipping, and secure payment options tailored for international B2B transactions. Whether you're restocking your parts inventory or sourcing for a specific fleet maintenance project, our team is ready to support you.
Request a quote now
— send us your required quantity and delivery destination, and we'll respond with pricing and lead time within 24 hours. You can also explore our complete range of truck electrical parts and Sitrak genuine components to consolidate your order and save on shipping.
