The HOWO single overhead warning light electrical device is a dedicated safety lighting system for the HOWO MAX 4X2 tractor, designed for high‑visibility warning applications. This HOWO single overhead warning light electrical device includes the warning light bracket, connection bracket, warning light unit, mounting bolts, and two additional wiring harnesses for seamless electrical integration. When you choose authentic Howo Parts, this HOWO single overhead warning light electrical device guarantees OE fitment, reliable illumination, and simple installation. Below are detailed descriptions of every component included with this HOWO single overhead warning light electrical device assembly.
The vehicle warning light bracket is a sturdy steel mounting plate that attaches to the roof of the cab. This HOWO single overhead warning light electrical device bracket is powder‑coated black for corrosion resistance and features pre‑drilled mounting holes that align perfectly with the roof structure. It provides a stable base for the warning light, ensuring it remains securely positioned even at highway speeds.
This connection bracket is specifically designed for the MAX LTE135 high‑ceiling cab variant. It connects the warning light to the main bracket and provides additional height adjustment to ensure the light clears the roof profile. The bracket is made from galvanised steel and includes slots for wire routing, keeping the installation neat and protected.
The warning light is a high‑intensity LED beacon that delivers exceptional visibility in all weather conditions. This HOWO single overhead warning light electrical device component features 12‑24V operation, a polycarbonate lens, and a durable aluminium housing. It produces 360° illumination with a flash pattern selector, making it ideal for construction, towing, and emergency applications.
Four M6 flange bolts are supplied to secure the warning light and its brackets to the cab roof. These HOWO single overhead warning light electrical device bolts have an integrated flange that distributes clamping load, preventing damage to the roof panel. They are grade 8.8, zinc‑plated, and torqued to 10 Nm for a secure, vibration‑proof fit.
Two additional wiring harnesses (AZ9918770072 and YZ952577900067) are provided to connect the warning light to the vehicle’s electrical system. One harness routes power from the fuse box to the roof area, while the other connects the switch and ground. These HOWO single overhead warning light electrical device harnesses use automotive‑grade cross‑linked polyethylene insulated wires, rated for 105°C, with sealed connectors to prevent corrosion. Each harness is pre‑terminated with matching plugs for plug‑and‑play installation.
HOWO single overhead warning light electrical device – genuine warning light and harness kit for MAX 4X2
This HOWO single overhead warning light electrical device includes the bracket, connection bracket, LED warning light, bolts, and two wiring harnesses – everything needed for a fully functional overhead warning system on the MAX 4X2.
The warning light in this HOWO single overhead warning light electrical device uses ultra‑bright LEDs that provide 360° visibility, ensuring your vehicle is seen from all angles, even in poor weather or low‑light conditions.
The two additional wiring harnesses are pre‑terminated with the correct connectors for the HOWO MAX 4X2, making electrical installation straightforward and eliminating the need for splicing or soldering.
The brackets are precisely formed to fit the MAX LTE135 high‑ceiling roof profile. This HOWO single overhead warning light electrical device kit bolts directly to the factory mounting points without drilling or modifications.
The HOWO single overhead warning light electrical device is designed to enhance the visibility of the vehicle in hazardous situations. The warning light is mounted on the roof using the two‑bracket system, which provides a stable platform and allows the light to be positioned for maximum visibility. The additional wiring harnesses are routed from the vehicle’s fuse box through the cab headliner to the roof, connecting to the warning light’s power leads.
When the driver activates the dashboard switch (not included), the LED warning light emits a bright flashing pattern that can be selected via the integrated control module. The electrical system of the HOWO single overhead warning light electrical device is protected by a fuse and relay (vehicle‑supplied), ensuring safe operation. The harnesses are designed with weather‑sealed connectors to prevent moisture ingress, guaranteeing reliable performance in rain, dust, and extreme temperatures. This system is ideal for trucks used in construction, road maintenance, emergency response, or any application where the vehicle needs to be highly visible to other road users.
Before installing the HOWO single overhead warning light electrical device, disconnect the vehicle battery. Remove the headliner trim to access the roof mounting points. Position the vehicle warning light bracket onto the roof and mark the pre‑drilled holes.
Secure the bracket using the four M6 flange bolts, applying a small amount of thread locker to the threads (torque to 10 Nm). Attach the single warning light connection bracket to the light unit, then mount the light onto the main bracket using the provided hardware. Route the additional wiring harnesses from the fuse box up the A‑pillar and across the headliner to the roof. Connect the harness to the warning light’s power connector, ensuring the polarity is correct (red to positive, black to ground). Reconnect the battery and test the light operation.
If the warning light does not function, check the fuse and the switch connection. Once tested, secure the harness with cable ties and replace the headliner trim. The HOWO single overhead warning light electrical device is now ready for use.
If the HOWO single overhead warning light electrical device does not illuminate, check the fuse (typically 5A) and the main power connection. Ensure the harness connectors are fully seated. If only one harness is connected, the light will not receive power; both harnesses must be connected correctly.
If the light flashes erratically, the control module may be faulty – replace the warning light unit. A loose bracket can cause the light to vibrate and misalign; retighten the flange bolts to 10 Nm. If the harness wires are damaged, repair them with waterproof splices or replace the harness. Always use genuine HOWO single overhead warning light electrical device components for replacement to ensure correct fitment and electrical compatibility.
Inspect the HOWO single overhead warning light electrical device annually or every 40,000 km. Check the warning light lens for cracks or yellowing; replace the unit if the light output is reduced. Ensure the mounting bolts remain tight – retorque if necessary. Examine the wiring harnesses for chafing or damage;
repair or replace any worn sections. Clean the light lens with a soft, damp cloth to maintain maximum brightness. The LED warning light has a long service life (>50,000 hours), but the power supply connections should be checked for corrosion. Keep the roof area clean to prevent debris from accumulating around the bracket. A well‑maintained HOWO single overhead warning light electrical device ensures the warning light remains effective when needed.
This HOWO single overhead warning light electrical device is specifically designed for the HOWO MAX 4X2 tractor with the MAX LTE135 high‑ceiling cab. It fits all production years from 2018 onward. The connection bracket is unique to the high‑ceiling variant; for standard‑roof cabs, a different bracket is required.
The wiring harnesses are compatible with the 24V electrical system of the MAX 4X2. This kit is also suitable for SITRAK C7H and HOWO T7H models that share the same roof structure and electrical connectors. It is not compatible with older A7 or WD615 models, which have different roof profiles and wiring layouts. Always verify your cab type before ordering the HOWO single overhead warning light electrical device.
Aftermarket warning light kits often use lower‑quality LEDs that fade over time or fail prematurely, reducing visibility. Generic brackets may not align with the roof mounting points, requiring drilling that can void the cab warranty and invite corrosion. Non‑genuine wiring harnesses may use undersized wires, leading to voltage drops and dim light output, or insufficient insulation, causing shorts. Genuine HOWO single overhead warning light electrical device components are manufactured to SINOTRUK’s exacting standards, using high‑intensity LEDs,
corrosion‑resistant materials, and automotive‑grade wiring with proper fusing. The small additional cost of a genuine kit ensures reliable warning light performance, which is essential for legal compliance in many jurisdictions and, more importantly, for the safety of the driver and other road users.
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