Original equipment replacement horn that delivers a powerful 130 dB of sound that ensures you'll be heard over surrounding noise! This horn features high durability, water & corrosion resistant steel housing. The HK 9 disc horn that meets or exceeds SAE & O.E.M. specifications for a wide range of cars, trucks & motorcycles. Quick & Easy installation kit included. Features high durability, water & corrosion resistant steel housing with aluminium tone disc and universal mounting bracket. 12V, 130 dB @ 4"