![WOLO 846-800K: Air Horn/Compressor Kit with Lanyard Pull Valve Switch | Includes "The Chief" Single Air Horn (125 Decibels, 247 Hz), Manual Lanyard Pull Valve Switch | For Fire Truck/Emergency Vehicles - JEGS WOLO 846-800K: Air Horn/Compressor Kit with Lanyard Pull Valve Switch | Includes "The Chief" Single Air Horn (125 Decibels, 247 Hz), Manual Lanyard Pull Valve Switch | For Fire Truck/Emergency Vehicles - JEGS](https://www.jegs.com/images/photos/400/425/425-846-800k.jpg)
WOLO 846-800K: Air Horn/Compressor Kit with Lanyard Pull Valve Switch | Includes "The Chief" Single Air Horn (125 Decibels, 247 Hz), Manual Lanyard Pull Valve Switch | For Fire Truck/Emergency Vehicles - JEGS
Did truck air horns used to be on a pull cord? When I was a kid, we used to ask trucks to sound their horns by a vertical pull motion. - Quora
![H00755NS Hadley Horn Mount Manual Lanyard Valve for Hadley horns with 7/16-24 threaded inlet - Eurohorns H00755NS Hadley Horn Mount Manual Lanyard Valve for Hadley horns with 7/16-24 threaded inlet - Eurohorns](https://www.eurohorns.com//Files/2/81000/81859/ProductPhotos/1000x525/280722659.png)