Import Air Horn — Buy in wholesale FOB from Supplier in China

This dual-tone air horn from Ruian Hailuo Auto Parts Factory produces a 150-180 dB output from chrome-plated brass trumpets, operating on both 12V and 24V electrical systems. The chrome-plated brass construction provides corrosion resistance suited to heavy-duty commercial environments, and the unit is designed for installation on trucks, buses, and emergency vehicles. The horn complies with DOT/SAE automotive standards, confirming its suitability for regulated North American and European aftermarket applications. Bulk wholesale cartons are the standard packaging format offered to importers and distributors.

Chrome-plated brass remains the standard material for professional-grade air horns because it withstands salt spray, temperature cycling, and vibration better than zinc alloys or untreated brass. The dual-tone design typically combines two distinct frequencies to improve directional perception and cut through ambient road noise. The 150-180 dB range places this unit in the upper tier of electropneumatic horns, comparable to train-grade signalling equipment but scaled for on-road vehicle mounting. Typical brass alloys in this application contain 60-70% copper with zinc balance, with chrome plating thickness of 0.2-0.5 microns for exterior durability. The 12V/24V dual-voltage capability is standard for commercial vehicle fleets running mixed electrical architectures.

Primary buyers include aftermarket distributors serving truck and bus fleets, emergency vehicle upfitters, and marine safety equipment suppliers. The horn bolts onto standard mounting brackets with compressed air supplied from the vehicle's existing pneumatic system or a dedicated compressor. Importers should confirm whether the supplier provides compressors, relay harnesses, and mounting hardware as separate line items or integrated kits. Voltage selection, air compressor CFM requirements, and trumpet orientation are the three details to lock down before placing an order. The DOT/SAE compliance claim should be verified by requesting the specific test report numbers and the accredited laboratory that conducted the certification testing.

Ruian Hailuo Auto Parts Factory operates from Tangxia Town in the Shadu Industrial Zone of Ruian, Zhejiang Province, China. The supplier address is Tangxia Town, Shadu Industrial Zone, Ruian, 325204, Zhejiang, China. The trust tier is recorded as harbor, with a response rate of 0.00% and an average response time of 0 hours. These signals indicate the supplier profile is present but buyer engagement data is either unavailable or not yet established. No verification of production capacity, workforce size, or year of establishment is provided in the source data.

The listing positions this supplier as a wholesale source of automotive air horns for the global aftermarket, with emphasis on DOT/SAE standard compliance and dual-voltage compatibility. No information is available about in-house testing facilities, ISO certification status, or export experience to specific markets. The supplier does not state MOQ, price bands, lead times, or accepted payment terms. Buyers should treat the DOT/SAE claim as unverified until test documentation is requested and reviewed.