| No. | Part No. | Name |
|---|---|---|
| 1 | WG9725580042 | 5A Waterproof Fuse Device |
| 2 | YZ900076000002 | New‑Type Electromagnetic Switch Mounting Bracket |
| 3 | WG9100760116 | New‑Type Electromagnetic Main Power Switch (Low Hold Current) |
| 4 | YZ901577000010 | PTO/Power Take‑off Switch Combined Additional Harness |
The 5A Waterproof Fuse Device is a fully sealed in‑line fuse holder that protects the control circuit of the New Electromagnetic Main Power Switch against overloads and short circuits. Its IP67‑rated housing keeps moisture and dirt away, ensuring reliable protection even in harsh under‑hood conditions. The device accepts standard blade‑type fuses and features a visual indicator for blown fuse detection, simplifying troubleshooting.
The New‑Type Electromagnetic Switch Mounting Bracket is a precision‑formed steel bracket that securely holds the main switch to the chassis or battery box. It is designed to absorb vibration and maintain alignment, ensuring that the New Electromagnetic Main Power Switch remains stable and reliable. The bracket is powder‑coated for corrosion resistance and includes pre‑drilled mounting holes for easy installation.
The New‑Type Electromagnetic Main Power Switch is a high‑performance remote battery disconnect that features a low‑hold current design, drawing only 0.5A in the closed position compared to earlier 1.5A models. This significantly reduces battery drain during long parking periods. The switch has silver‑alloy contacts rated for 200A continuous and 1000A peak, ensuring reliable starting even in cold weather. Its sealed coil and robust housing protect against moisture and road debris, making it ideal for heavy‑duty truck applications.
The PTO/Power Take‑off Switch Combined Additional Harness is a pre‑assembled wiring loom that integrates the PTO switch control with the main power switch circuit. It allows the driver to engage the PTO while the main power is active, and automatically disconnects when the main switch is turned off. This harness is labelled with color‑coded wires and features plug‑and‑play connectors, simplifying installation and reducing wiring errors.
Our New Electromagnetic Main Power Switch is manufactured to Sinotruk’s original specifications, guaranteeing exact fitment and seamless integration with the C7H electrical system. The bracket and harness are designed to match the vehicle’s mounting points and connectors.
The advanced solenoid design reduces hold current by 70% compared to earlier models, preserving battery charge during extended parking. This feature is especially valuable for trucks with sleeper cabs or telematics systems.
We supply the main switch, mounting bracket, waterproof fuse, and PTO combination harness – everything you need for a full retrofit or replacement. No additional parts are required, saving time and simplifying the job.
All components are built to withstand the harsh conditions of heavy truck operation, including extreme temperatures, vibration, and moisture. The fuse device and switch are fully sealed, ensuring long‑term reliability.
The New Electromagnetic Main Power Switch is the next‑generation battery isolation solution for the Sitrak C7H, offering improved energy efficiency and enhanced safety. It allows the driver to remotely disconnect the battery from the cab, preventing theft, electrical fires, and parasitic drain.
The low‑hold current design is a significant upgrade over previous versions. Older electromagnetic switches drew up to 1.5A continuously, which could drain the battery over time. Our new switch consumes only 0.5A, extending battery life and reducing the risk of no‑start situations after long periods of parking.
The waterproof fuse device is an often‑overlooked but critical component. It protects the switch’s control circuit from short circuits, which can occur due to chafed wiring or water ingress. The 5A rating is carefully chosen to match the coil’s current draw, providing precise protection without nuisance blowing.
The new‑type mounting bracket is designed to accommodate the slightly different dimensions of the new switch, ensuring a secure fit on the existing chassis holes. It is made from 3mm thick steel and is electrocoated to resist rust.
The PTO combined harness is a thoughtful addition that simplifies the integration of the power take‑off control. Previously, this required a separate wiring loom, but our kit consolidates it into a single, neat bundle. The harness is terminated with a deutsch connector that plugs directly into the vehicle’s PTO interface.
Replacing an old or faulty main power switch is a proactive maintenance step that can prevent electrical gremlins. A failing switch may cause intermittent starting, or worse, fail to disconnect when needed, leading to battery drain or even a fire hazard. Our New Electromagnetic Main Power Switch restores full functionality and peace of mind.
Installation is straightforward: mount the bracket using the existing holes, attach the switch, connect the battery cable and control wiring, and install the fuse. The PTO harness connects to the cab switch and the PTO solenoid. All connectors are keyed to prevent misconnection.
We recommend testing the New Electromagnetic Main Power Switch after installation by turning the ignition on and off. A clear click should be heard from the switch, and the dashboard indicator should reflect the correct state.
For fleet operators, standardising on this New Electromagnetic Main Power Switch ensures consistent performance and simplifies training. The reduced hold current can lead to noticeable savings in battery replacements across the fleet.
The switch is compatible with both 12V and 24V systems, making it suitable for all C7H variants. It is also used in some T5G and Howo models, providing a versatile spare part for mixed fleets.
We back our New Electromagnetic Main Power Switch with a 12‑month warranty against manufacturing defects. Our technical support team is available to assist with any installation queries.
We ship worldwide with full tracking. Expedited shipping is available for urgent orders. Use the Send Email or Get Quotation buttons to request a personalised quote for your fleet or workshop.
Choosing a genuine New Electromagnetic Main Power Switch ensures that your C7H maintains its original safety and performance standards. Aftermarket alternatives may not offer the same low‑hold current or robust construction.
We recommend periodic inspection of the switch and its wiring, especially the fuse holder, to ensure there is no corrosion or loose connections. Cleaning the terminals with a wire brush can prolong the life of the contacts.
The PTO combination harness is particularly useful for trucks that frequently use power take‑off equipment, such as dump trucks or concrete mixers. It simplifies the wiring and reduces the risk of signal interference.
We maintain a large inventory to ensure fast dispatch, even for bulk orders. Contact our sales team for volume pricing and customised logistics solutions.
Thank you for considering our New Electromagnetic Main Power Switch for your Sitrak C7H. We are confident that our genuine OEM product will meet your expectations for quality, reliability, and energy efficiency.
The New Electromagnetic Main Power Switch is an essential upgrade for any C7H owner who values battery preservation and electrical safety. Its low‑hold current design is a step forward in commercial vehicle technology.
We offer a dedicated technical helpline for installation advice. Our engineers have in‑depth knowledge of the C7H electrical system and can guide you through any difficulties.
With proper installation, this New Electromagnetic Main Power Switch will provide years of reliable service, protecting your battery and giving you control over your vehicle’s power.
Upgrade your C7H with the genuine New Electromagnetic Main Power Switch – the smart choice for safety, efficiency, and peace of mind.
We are committed to providing the highest quality components and exceptional customer service. Choose our New Electromagnetic Main Power Switch for reliability you can count on.
Don’t let a failing main switch leave you stranded. Replace it today with our genuine part and enjoy the confidence of a fully functional electrical system.
The New Electromagnetic Main Power Switch is a testament to Sinotruk’s commitment to continuous improvement. We are proud to offer this advanced component to our customers.
We look forward to serving your Sitrak C7H needs. Place your order now and experience the difference that genuine OEM quality makes.
We stand behind the quality of our New Electromagnetic Main Power Switch with a full warranty and technical support. Drive with confidence, knowing that your truck is protected.
Our New Electromagnetic Main Power Switch is designed for longevity and performance. Trust only genuine Sinotruk parts to keep your truck on the road and your business moving.
We are proud to be a trusted supplier of OEM Sinotruk components. Contact us for a quote and let us help you keep your fleet running at its best.
Our online catalog provides comprehensive access to genuine SINOTRUK parts for all major vehicle lines — including HOWO, Sitrak, Steyr, and Yellow River series trucks. You can browse detailed specifications, original part numbers, and exploded-view diagrams for every assembly. Whether you are performing routine maintenance or planning a major overhaul, the catalog helps you quickly identify the correct components for your vehicle. When you become a SINOTRUK customer, we offer complimentary full‑access catalog services, ensuring you always have the latest product data and interchangeability information at your fingertips to support efficient fleet management and accurate parts ordering.
We are a heavy-duty truck parts store. Please leave your contact information and inquiries. We will respond within 12 hours.
