T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
WG9000270001
Sinotruk HOWO
| Attribute | Specification |
|---|---|
| Part Name | Air Horn Assembly / Pneumatic Warning Horn |
| OEM Part Number | WG9000270001 |
| Voltage Rating | 24V DC (controls the integrated electromagnetic valve) |
| Operating Pressure Range | 0.4 – 0.8 MPa (4 – 8 bar) |
| Sound Level Output | ≥ 115 – 120 dB(A) at 2 meters — extremely loud and highly audible |
| Frequency Range | Low-to-mid frequency band (~300–600 Hz) — optimized for long-distance penetration |
| Horn Type | Single-tube long resonator design (high-efficiency acoustics) |
| Body Material | Aluminum alloy or stainless steel trumpet body; corrosion-resistant coating |
| Base/Valve Housing | Cast aluminum or high-strength engineering plastic base with built-in solenoid |
| Internal Valve | Integrated electrically operated solenoid air control valve |
| Weight | Approx. 0.6 kg – 0.9 kg |
| Inlet Connection | Quick-connect or threaded air fitting (commonly G1/4" or M10) |
| Electrical Connector | Standard 2-pin plug (for 24V control signal from steering switch/horn relay) |
| Design Feature | Elongated wide-mouth structure for enhanced sound projection and clarity |
| Color Finish | Matte black spray coating or natural metal finish |
| Compliance Standards | ISO 3861-2 (vehicle sound signaling), GB15742 (Chinese automotive horn standard), ECE R28 |
Name1
Name2
Due to its reliance on both electrical and pneumatic systems, proper installation ensures reliable operation.
Depressurize Air System: Release all air pressure before connecting lines.
Inspect Mounting Location: Choose a spot protected from direct mud/water splash if possible.
Check New Unit: Ensure diaphragm is intact and solenoid moves freely.
Verify Compatibility: Match horn shape and orientation with original setup.
Securely mount the horn using provided brackets or bolts.
Common locations: top of cab, front bumper, side frame rail
Connect the air supply line:
Tap into main air reservoir via tee-fitting
Use nylon/polyurethane tubing (ID 6mm typical)
Install inline filter or moisture trap if needed
Attach the electrical connector:
Route wire through grommet to avoid chafing
Connect to horn relay output (controlled by steering wheel button)
Ensure horn mouth points slightly downward (~5–10°) to prevent water accumulation.
Rebuild air pressure and test:
Press horn button — should produce sharp, full sound
No hissing (indicates air leak)
No weak or muffled tone
❗ Critical Tip: Never bypass the horn relay — high current draw can damage switch contacts.
| Attribute | Specification |
|---|---|
| Part Name | Air Horn Assembly / Pneumatic Warning Horn |
| OEM Part Number | WG9000270001 |
| Voltage Rating | 24V DC (controls the integrated electromagnetic valve) |
| Operating Pressure Range | 0.4 – 0.8 MPa (4 – 8 bar) |
| Sound Level Output | ≥ 115 – 120 dB(A) at 2 meters — extremely loud and highly audible |
| Frequency Range | Low-to-mid frequency band (~300–600 Hz) — optimized for long-distance penetration |
| Horn Type | Single-tube long resonator design (high-efficiency acoustics) |
| Body Material | Aluminum alloy or stainless steel trumpet body; corrosion-resistant coating |
| Base/Valve Housing | Cast aluminum or high-strength engineering plastic base with built-in solenoid |
| Internal Valve | Integrated electrically operated solenoid air control valve |
| Weight | Approx. 0.6 kg – 0.9 kg |
| Inlet Connection | Quick-connect or threaded air fitting (commonly G1/4" or M10) |
| Electrical Connector | Standard 2-pin plug (for 24V control signal from steering switch/horn relay) |
| Design Feature | Elongated wide-mouth structure for enhanced sound projection and clarity |
| Color Finish | Matte black spray coating or natural metal finish |
| Compliance Standards | ISO 3861-2 (vehicle sound signaling), GB15742 (Chinese automotive horn standard), ECE R28 |
Name1
Name2
Due to its reliance on both electrical and pneumatic systems, proper installation ensures reliable operation.
Depressurize Air System: Release all air pressure before connecting lines.
Inspect Mounting Location: Choose a spot protected from direct mud/water splash if possible.
Check New Unit: Ensure diaphragm is intact and solenoid moves freely.
Verify Compatibility: Match horn shape and orientation with original setup.
Securely mount the horn using provided brackets or bolts.
Common locations: top of cab, front bumper, side frame rail
Connect the air supply line:
Tap into main air reservoir via tee-fitting
Use nylon/polyurethane tubing (ID 6mm typical)
Install inline filter or moisture trap if needed
Attach the electrical connector:
Route wire through grommet to avoid chafing
Connect to horn relay output (controlled by steering wheel button)
Ensure horn mouth points slightly downward (~5–10°) to prevent water accumulation.
Rebuild air pressure and test:
Press horn button — should produce sharp, full sound
No hissing (indicates air leak)
No weak or muffled tone
❗ Critical Tip: Never bypass the horn relay — high current draw can damage switch contacts.
