Wolo Manufacturing Cannon Ball Express Truck Horns – Ev24 Electric Solenoid

When a truck owner demands a ultra powerful horn, the CANNON BALL EXPRESS is the one to choose. Gives any truck a true train horn sound. Constructed of all metal with three (3) triple chrome plated trumpets. The horn’s base is plated steel. The Cannon Ball Express requires an on-board air system. Comes with all required mounting hardware and 10 foot length of 1/4″ nylon high pressure hose. MODEL 837 Built with heavy-duty 12 volt electric solenoid, MODEL 838 Built with heavy-duty 24 volt electric solenoid, & MODEL 839 Operates by a manual lanyard valve, Lanyard valve included.