Available worldwide · Designed in Tottori, Japan
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OIRAN JAPAN · SHOWROOM CATALOG

OIRAN BIG HORN

Air horn developed with Grover Products — stated output of approximately 120 dB.

Type
Air horn (requires on-board compressed-air supply)
Collaboration
Grover Products
Sound output
Stated output of approximately 120 dB
Specifications and distributor inquiry · no direct online sale

01 — PRODUCT

Product overview.

The OIRAN BIG HORN is a large-format air horn developed with Grover Products for heavy-duty trucks. Its stated output is approximately 120 dB.

  • Air-operated: connects to the truck’s on-board compressed-air system.
  • Stated output of approximately 120 dB.
  • Collaboration model with Grover Products.
  • Mounting and fitting guidance is available before ordering.

Confirm compressed-air supply, mounting space, hose and fitting requirements for the vehicle before installation.

Audible warning devices are regulated equipment. Verify local regulations before road use.

02 — SPECIFICATION

Verified specifications.

TypeAir horn (requires on-board compressed-air supply)
CollaborationGrover Products
Sound outputStated output of approximately 120 dB

03 — OFFICIAL CONFIGURATIONS

3 verified configurations.

The official active-list codes below are grouped by family or published technical attribute. Confirm current availability and vehicle fitment with a distributor.

Grover Big HornGrover collaboration air horn based on heavy emergency-vehicle equipment; approximately 622 mm long with a 153 mm flare.

Official active-list identity · availability and fitment confirmation required
Grover Big Horn3 codes
  • OG-01Grover Big Horn
  • OGB-01Grover Big Horn
  • OGB-02Grover Big Horn