When it comes to heavy-duty road safety, a reliable warning system isn’t optional—it’s critical. The WG9925710001 Electric Horn is a cornerstone of the HOWO truck parts electrical category, engineered specifically for the Sinotruk HOWO A7 and T7H cabin architectures.

Technical Specifications:

OEM Part Number: WG9925710001
Category: Electrical / Signaling System
Operating Voltage: 24V (Optimized for heavy-duty truck batteries)
Sound Pressure Level: 110-125 dB
Frequency Range: High/Low dual-tone compatibility
Compatible Models: Sinotruk HOWO A7, T7H, Sitrak series
Material: Corrosion-resistant steel housing with reinforced internal diaphragms
Connector Type: Two-pin waterproof terminal

Pro-Tips for Replacing your CX1023E Filter:

Mounting Angle: Install the horn with the bell mouth facing slightly downward (approx. 45 degrees). This prevents rainwater and road debris from accumulating inside the sound chamber, which is the leading cause of horn failure.
Contact Integrity: Inspect your wiring harness for signs of corrosion before connecting. A drop in voltage due to poor contact can lead to a “weak” sound or intermittent operation.
Secure Mounting: Ensure the bracket is bolted to a rigid part of the chassis or cab frame to minimize vibration-induced stress on the internal coils.
Circuit Protection: Always verify that your 24V relay is functioning correctly to prevent power surges from damaging the new unit.