The HW7C cab wire system is the central electrical nervous system for the HOWO A7 8X4 cab, managing power distribution, signal routing, and circuit protection. This comprehensive kit includes a wide range of components such as the Gear fixing washer, Clip, Hex bolt, Spring washer, 1 shape Hexagonal nut, Wire fixing protect bar, Protect bar, 120Ω resistance, Wire connection box and its cover, Cross screw, Flat washer, Plastic fixing belt, Self tapping screw, Seal bar, Cross hollow self tapping screw, Washer, Is shape Hexagonal nut, Plastic ring, Distributing box, and Connection strap. When you choose genuine howo Parts for your HW7C cab wire installation, you guarantee reliable electrical connections, organized cable routing, and long-lasting protection against vibration, heat, and moisture.
The Gear fixing washer is a specialized locking washer designed to secure gear assemblies and prevent loosening under vibration. It is used in the cab wiring enclosure to maintain tension on critical fasteners.
This washer is made from hardened steel with a corrosion-resistant coating, ensuring reliable performance even in high-humidity environments. It is a key component for maintaining the structural integrity of the cab wire system.
The Clip is a spring-loaded retainer used to secure wire bundles and hoses to the cab frame. It provides a quick and reliable method for organizing cables without the need for additional fasteners.
This clip is made from high-carbon spring steel with a zinc plating for corrosion resistance. It is designed for easy installation and removal, facilitating maintenance and troubleshooting of the HW7C cab wire harness.
The Hex bolt is a standard metric fastener with a hexagonal head, used to secure the cab wire enclosures and mounting brackets. It is available in various lengths and thread sizes to suit different applications.
These bolts are manufactured from grade 8.8 steel with a protective coating to resist corrosion. They are used in conjunction with washers and nuts to ensure a secure and vibration-resistant assembly for the HW7C cab wire components.
The Spring washer is a split-ring lock washer that provides a locking action under bolt heads, preventing loosening due to vibration. It is essential for maintaining the integrity of bolted connections in the cab wire system.
These washers are made from spring steel and are used in sizes M6 and M8. They work together with flat washers to distribute clamping load and ensure long-term joint stability for the HW7C cab wire installation.
The 1 shape Hexagonal nut is a standard hex nut (type 1) used with hex bolts to create secure threaded joints. It is manufactured to precise tolerances for consistent performance.
This nut is made from carbon steel with a zinc finish, providing good corrosion resistance. It is used in various sizes (M6, M8) throughout the HW7C cab wire mounting hardware.
The Wire fixing protect bar is a structural bracket that holds and protects wiring harnesses as they pass through the cab firewall or along the chassis. It provides a secure mounting point for cable ties.
This bar is made from galvanized steel and features pre-drilled holes for easy attachment. It helps maintain proper wire routing and prevents chafing against sharp edges in the HW7C cab wire system.
The Protect bar is a secondary protective rail that covers and shields wiring bundles from physical damage and heat exposure. It is installed in high-risk areas of the cab.
Several variants are available, including standard and test-board versions, each designed to fit specific routing paths. These bars are critical for the long-term durability of the HW7C cab wire harness.
The 120Ω resistance is a terminating resistor used in CAN bus communication lines to prevent signal reflections. It ensures stable data transmission between electronic modules in the cab.
This component is available in standard and Jinan Xintianyu variants, both providing precise resistance tolerance. It is essential for the proper functioning of the HW7C cab wire network.
The Wire connection box is a junction enclosure that houses electrical splices, relays, and fuse holders. It provides a centralized point for wire terminations and protection devices.
Multiple variants exist, including standard, normally-closed, and specific supplier versions. Each box is designed for easy access and maintenance of the HW7C cab wire circuits.
The Wire connection box cover is a protective lid that seals the junction box against dust, moisture, and accidental contact. It is secured with screws or clips.
This cover is available in standard and normally-closed configurations, and it includes gaskets for a weather-tight seal. It is essential for maintaining the integrity of the HW7C cab wire system.
The Cross screw is a pan-head screw with a Phillips drive, used for fastening covers, small brackets, and trim pieces within the cab. It is commonly used with flat and spring washers.
These screws are available in M4 and M6 sizes with zinc plating. They provide a reliable fastening solution for lightweight components in the HW7C cab wire installation.
The Flat washer is a plain annular disc used under bolt heads and nuts to distribute clamping load and protect surfaces from damage. It is used in combination with spring washers.
These washers are made from low-carbon steel and are available in sizes M4, M6, and M8. They are essential for achieving proper torque and load distribution in the HW7C cab wire assembly.
The Plastic fixing belt is a heavy-duty cable tie used to bundle and secure wire harnesses along the cab frame. It is made from UV-stabilized nylon 6/6 with high tensile strength.
Several lengths and widths are available, including A5*280 mm. These belts are used in large quantities to organize the HW7C cab wire harness and prevent chafing against sharp edges.
The Self tapping screw is a specialized fastener that cuts its own threads when driven into sheet metal or plastic. It is used for attaching covers and components without pre-tapped holes.
This screw is available with a cross recess (Phillips) and a flat head. It is used in various applications within the HW7C cab wire system, providing quick and secure assembly.
The Seal bar is a continuous rubber or foam gasket that seals the junction box cover and other enclosures against water and dust ingress. It is supplied in long lengths (570 units) for custom fitting.
This seal bar is made from EPDM rubber with excellent weather resistance. It is a critical component for maintaining the environmental protection of the HW7C cab wire electronics.
The Cross hollow self tapping screw is similar to the self tapping screw but with a hollow tip designed to reduce thread forming torque and prevent splitting of plastic materials.
This screw is used for attaching plastic covers and components in the HW7C cab wire system. It provides a reliable and cost-effective fastening solution.
The general Washer is a flat or curved disc used to distribute load or act as a spacer. In this kit, it is used in combination with bolts and screws for various mounting applications.
These washers are made from steel with a protective coating and are available in different diameters to suit the fasteners used in the HW7C cab wire assembly.
The Is shape Hexagonal nut is another variant of the standard hex nut, used with bolts to create secure threaded connections. It is available in size M6.
This nut is manufactured to the same high standards as the 1 shape nut, ensuring reliable torque retention. It is used in various locations within the HW7C cab wire mounting system.
The Plastic ring is a rubber grommet that protects wires passing through sheet metal holes from chafing and sharp edges. It is sized for a 50mm diameter hole.
This ring is made from flexible PVC and is easy to install. It is a vital component for maintaining wire integrity in the HW7C cab wire harness.
The Distributing box is a larger enclosure that houses main power distribution and fuse modules. It provides multiple output terminals for various electrical loads in the cab.
This box is made from flame-retardant plastic and features a hinged cover for easy access. It is a key component of the HW7C cab wire power distribution network.
The Connection strap is a pre-assembled multi-conductor jumper that connects multiple terminals or modules within the cab. It is available in various wire counts (3, 4, 5, 6, 8, 11 wires).
These straps simplify wiring by providing ready-made harness segments. They are used extensively in the HW7C cab wire system to reduce assembly time and errors.
HW7C cab wire – Complete electrical distribution and protection kit for HOWO A7 8X4
| Part NO. | Description |
|---|---|
| Q41205 | Gear fixing washer |
| Q56820 | Clip |
| Q15080616 | Hex bolt |
| Q40306 | Spring washer |
| Q40306 | 1 shape Hexagonal nut |
| A2F01780010 | Wire fixing protect bar |
| WG16142110018 | Protect bar |
| WG97255840005 | 120Ω resistance |
| WG9100770392 | Wire connection box |
| WG97255840032 | Wire connection box cover |
| Q2140825F31 | Cross screw |
| Q40108 | Flat washer |
| WG9003171356 | Plastic fixing belt |
| Q2762995F31 | Self tapping screw |
| 1900073120032 | Seal bar |
| Q2713525F31 | Cross hollow self tapping screw |
| Q40206 | Washer |
| Q340806 | Is shape Hexagonal nut |
| A2F19770047 | Plastic ring |
| 1791007700391 | Distributing box |
| 1791007700387-1 | Connection strap |
Our HW7C cab wire components are manufactured to the highest quality standards, using materials that resist corrosion, heat, and vibration. This ensures long-lasting reliability in the demanding environment of heavy-duty trucks.
The comprehensive kit includes every fastener, protector, and connector needed for a complete cab wiring installation. This saves you time sourcing individual parts and ensures compatibility across the entire system.
Our HW7C cab wire system is designed for easy assembly and maintenance, with clear labeling and standardized connectors. This reduces installation errors and simplifies troubleshooting for fleet technicians.
We back our HW7C cab wire kit with a comprehensive warranty and dedicated technical support. Choose genuine howo Parts for the confidence of factory-spec performance and safety.
The HW7C cab wire system is responsible for distributing power and signals throughout the cab, connecting the dashboard, lighting, HVAC, and electronic control modules. It is a complex network that requires precise assembly and protection.
Each component plays a specific role: the wire connection boxes house fuses and relays, the connection straps provide flexible interconnections, and the protect bars shield the harness from mechanical damage. The 120Ω resistors terminate CAN bus lines for stable communication.
Proper installation of the HW7C cab wire ensures that all electrical functions operate reliably, from wipers and windows to engine management and transmission control. A faulty connection can cause intermittent issues that are difficult to diagnose.
Regular inspection of the cab wire system is recommended, especially the condition of the plastic fixing belts and wire sheaths. Replacing worn components proactively prevents unexpected failures and reduces downtime.
Begin by disconnecting the battery and removing the old cab wiring harness. Use the HW7C cab wire schematic to identify the correct routing and attachment points for each cable bundle.
Install the wire connection boxes and distributing box in their designated locations, securing them with the hex bolts, spring washers, and 1 shape hexagonal nuts. Use flat washers to protect the mounting surfaces.
Route the harness using the wire fixing protect bars and protect bars to keep cables clear of moving parts and heat sources. Secure the harness at intervals with plastic fixing belts, ensuring a neat and orderly layout.
Install the connection straps between modules, ensuring correct pin alignment. Terminate CAN bus lines with the 120Ω resistors as required. Use cross screws and self tapping screws to attach covers and small brackets.
After assembly, reconnect the battery and test all cab functions. Check for any warning lights or error codes. Verify that the seal bars are properly compressed to maintain enclosure integrity.
The HW7C cab wire components are specifically designed for the HOWO A7 8X4, but many fasteners and protective elements are standard across multiple HOWO models. Always verify part numbers against your vehicle’s VIN.
The plastic fixing belts and seal bars are generic and can be used with other cable bundles of similar thickness. However, for the HW7C cab wire system, we recommend using the supplied components for guaranteed fit and durability.
Connection straps are available in different wire counts; select the appropriate strap based on the number of circuits you need to bridge. Our technical team can assist in identifying the correct part for your specific application.
When replacing individual components, always use genuine howo Parts to maintain system integrity and warranty coverage. Aftermarket substitutes may not provide the same level of quality and performance.
A properly installed HW7C cab wire system minimizes electrical resistance and voltage drops, ensuring that all cab components receive stable power. This extends the life of sensitive electronics like displays and control units.
The use of high-quality protect bars and fixing belts prevents chafing and short circuits, which are common causes of cab fires. The seal bars keep moisture and dust out of junction boxes, reducing corrosion risk.
For fleet operators, standardizing on the HW7C cab wire kit simplifies spare parts inventory and reduces training time for technicians. Consistent quality across vehicles leads to predictable maintenance schedules.
We recommend performing a full cab wire inspection every 12 months or 50,000 km. Check for loose connections, damaged insulation, and worn fixing belts. Replace any questionable components promptly.
Our technical support team is available to assist with any installation or troubleshooting questions. We are committed to keeping your HOWO A7 8X4 operating safely and efficiently with our HW7C cab wire solutions.
Order your HW7C cab wire kit today and experience the reliability that comes with genuine howo Parts. Your truck’s electrical health is our priority.
With over 20 years of experience in heavy-duty truck parts, we have the expertise to supply the highest quality components. Trust us for all your cab wiring needs.
We offer competitive pricing and fast shipping to keep your fleet on the road. Contact us today for bulk order discounts and technical support.
Remember, a well-maintained cab wire system is essential for driver safety and vehicle performance. Don’t compromise on quality – choose our HW7C cab wire kit.
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