

The Master power switch is a critical electrical component for HOWO 4X2 tractor trucks. This complete kit includes the New master power switch, Hexagon bolt with flange M6, Bale support, Rubber sheath, and Battery case wiring harness. The Master power switch provides a reliable means to disconnect the battery for safety and maintenance.
The Master power switch is designed to handle high current loads and provide a secure, visible disconnect point. Its robust construction ensures dependable operation in harsh environments. The Master power switch is a direct replacement for original factory units, restoring full functionality to the electrical system.
When you choose authentic howo Parts, you receive a Master power switch that meets all OEM specifications. This kit is manufactured using high-quality materials, ensuring corrosion resistance and long service life. The Master power switch is essential for safe vehicle operation and maintenance.
The Master power switch is the trusted choice for professional mechanics and fleet operators. With the Master power switch, you ensure reliable battery disconnection and protect against electrical faults. This Master power switch is an indispensable part of your HOWO 4X2 electrical system.
The New master power switch is the central component of this kit, providing a manual battery disconnect function. It features a rugged rotary or lever mechanism that allows the driver to easily disconnect the battery for safety during maintenance or in emergencies. The switch is rated for high current (typically 100A or more) and is designed to break the circuit cleanly, preventing arcing.
This New master power switch is manufactured with silver-plated contacts for low resistance and corrosion resistance. Its housing is sealed against dust and moisture, ensuring reliable performance even in wet conditions. The switch includes a mounting bracket and is designed to fit directly into the HOWO 4X2 battery compartment.
The New master power switch is a critical safety device that prevents battery drain, protects against short circuits, and allows safe servicing of the electrical system. Its positive action gives the driver confidence that the battery is fully disconnected. This switch is the heart of the Master power switch assembly and is built to last.
The Hexagon bolt with flange M6 is a high-quality fastener used to secure the Master power switch and its mounting brackets to the vehicle chassis. Its flange provides a large bearing surface, distributing load and preventing damage to the mounting holes. The bolt is made from grade 8.8 steel with a zinc-plated finish for corrosion resistance.
This Hexagon bolt with flange M6 is pre-sized to the correct length, eliminating the need for cutting or modification. It is used to attach the bale supports and the switch itself, ensuring a secure and vibration-proof installation. The included bolts simplify the assembly process and guarantee a professional fit.
The Bale support is a sturdy metal bracket that holds the Master power switch securely in place. It is designed to fit the specific mounting points of the HOWO 4X2 battery tray, ensuring that the switch is correctly positioned for easy access. The bracket is formed from heavy-gauge steel and powder-coated for durability.
This Bale support is essential for maintaining the alignment of the switch and preventing movement due to vibration. Its robust construction ensures that the switch remains securely attached over the vehicle’s lifetime. The kit includes two bale supports, providing redundancy and stability.
The Rubber sheath is a protective cover that fits over the electrical terminals of the Master power switch. It prevents accidental short circuits and protects the terminals from moisture and dirt. The sheath is made from flexible, oil-resistant rubber that remains pliable over a wide temperature range.
This Rubber sheath also provides strain relief for the connected cables, reducing the risk of wire fatigue and breakage. The kit includes two rubber sheaths, one for each terminal, ensuring comprehensive protection. This simple yet effective component contributes to the overall safety and longevity of the Master power switch installation.
The Battery case wiring harness (MAX single layer) is a pre-assembled cable loom that connects the Master power switch to the vehicle’s electrical system. It includes heavy-gauge cables with correctly sized terminals for a secure, low-resistance connection. The harness is designed specifically for the HOWO 4X2 and features a single-layer construction for easy routing.
This Battery case wiring harness uses cross-linked polyethylene insulation that resists abrasion, oil, and high temperatures. The cables are color-coded for easy identification (typically red for positive and black for negative). The harness includes the correct length for a tidy installation, reducing clutter in the battery compartment.
The Battery case wiring harness (MAX single layer) is a critical part of the Master power switch system, ensuring that the switch is properly integrated into the vehicle’s electrical architecture. Its pre-terminated ends simplify installation, saving time and ensuring a reliable connection every time.
Master power switch – Complete Battery Disconnect and Wiring Kit for HOWO 4X2
| Material Encoding | Name |
|---|---|
| WG9100760102 | New master power switch |
| ZQ1840616 | Hexagon bolt with flange M6 |
| YZ952576500007 | Bale support |
| YZ952576500017 | Rubber sheath |
| AZ160051000248 | Rubber sheath |
| YZ952577400077 | Battery case wiring harness (MAX single layer) |
The Master power switch kit includes the switch, mounting brackets, bolts, rubber sheaths, and a pre-assembled wiring harness. Everything you need for a professional installation is included, saving time and ensuring compatibility.
The Master power switch is built to handle high currents and withstand the harsh environment of a commercial truck. Silver-plated contacts, sealed housing, and durable materials ensure that this switch will provide years of dependable service.
The included wiring harness and pre-drilled brackets make installation straightforward. The switch is designed for clear access, and the rubber sheaths protect terminals, reducing maintenance needs. This Master power switch is user-friendly for both professional and DIY installations.
This Master power switch is manufactured to original equipment standards and fits all HOWO 4X2 models. Supported by our worldwide distribution network, you can order with confidence, knowing that help is always available if needed.
The Master power switch is engineered to provide a positive, reliable disconnect action. The internal contacts are designed to break the circuit quickly, minimizing arc formation and contact wear. The switch mechanism includes a spring-loaded action that ensures a firm connection when engaged and a clean break when disengaged. This design reduces the risk of electrical faults and extends the life of the switch.
The housing of the Master power switch is constructed from high-impact nylon or metal, depending on the model, offering excellent resistance to mechanical shock and environmental stress. The sealing is rated to IP67, preventing water and dust ingress even during pressure washing. The terminal studs are made from brass with a tin plating for excellent conductivity and corrosion resistance.
The Battery case wiring harness (MAX single layer) is manufactured using cross-linked polyethylene insulation that remains flexible in cold temperatures and does not melt under high heat. The cables are crimped and soldered to the terminals for a permanent, low-resistance connection. The harness is also wrapped with a protective loom to prevent chafing against sharp edges.
Each Master power switch is subjected to rigorous testing. Contact resistance is measured to ensure it is within the specified low range. Dielectric strength testing is performed to verify insulation integrity. The switch is operated for thousands of cycles to confirm mechanical endurance. Additionally, all fasteners and wiring harnesses are inspected for dimensional accuracy and material quality.
Random samples are exposed to extreme temperatures (−40°C to +85°C) and salt spray to validate corrosion resistance. Vibration testing simulates real-world road conditions to ensure that all connections remain secure. These procedures confirm that the Master power switch meets the highest standards of reliability and safety.
Our quality management system is certified to IATF 16949, and each kit is traceable to its production batch. This ensures that any quality issues can be quickly identified and resolved, maintaining the trust of our customers.
Installing a genuine Master power switch prevents battery drain during idle periods and protects the electrical system from short circuits. This reduces the risk of costly electrical repairs and unexpected breakdowns. The robust design of the switch ensures a long service life, minimizing replacement frequency.
For fleet operators, this kit simplifies inventory by consolidating multiple parts into one package. The pre-assembled harness reduces installation time, lowering labor costs. The included rubber sheaths and protective covers help prevent damage from corrosion, extending the life of the battery terminals and switch.
The Master power switch also enhances safety by providing a visible and accessible disconnection point, which is essential for emergency responders and maintenance personnel. This small investment can prevent major accidents and equipment damage, making it an essential component for any fleet.
The Master power switch is designed to be a direct bolt-on replacement for the original factory switch. The mounting holes align with the existing brackets, and the wiring harness connectors match the vehicle’s electrical system. No modifications are required, ensuring a quick and hassle-free installation.
Routine maintenance is simple – periodically inspect the switch for corrosion, ensure the terminals are tight, and check the condition of the rubber sheaths. If needed, the switch can be easily removed for servicing without disturbing the rest of the electrical system. The design allows for straightforward access even in tight battery compartments.
The Battery case wiring harness (MAX single layer) is routed to avoid sharp edges and heat sources, and its single-layer construction makes it easy to trace and inspect. This attention to detail ensures that the Master power switch remains a reliable and accessible component throughout the vehicle’s life.
Each Master power switch kit is accompanied by a comprehensive installation guide that includes step-by-step instructions, torque specifications for the mounting bolts, and wiring diagrams. This ensures that even less experienced technicians can perform a correct and safe installation.
Our technical support team is available to assist with any questions regarding the Master power switch, from verifying compatibility to troubleshooting electrical issues. We also provide online resources, including product videos and FAQ pages, to help users get the most out of their purchase.
With the Master power switch, you are investing in a complete solution backed by dedicated support, ensuring that your HOWO 4X2 remains safe, reliable, and ready for the road.
The Master power switch is the definitive solution for battery disconnection and electrical protection in your HOWO 4X2 tractor. With its complete kit including the switch, brackets, bolts, sheaths, and harness, you can restore full functionality and safety to your vehicle’s electrical system. Choose the Master power switch for your fleet and experience the difference that genuine HOWO quality delivers.