Wolo 839 Cannon Ball Express Truck Air Horn - Manual Lanyard Valve Operated for Semi Trucks, Big Rigs & Emergency Vehicles

The Wolo 839 is perfect when a truck owner demands an ultra-powerful horn. Gives any truck a true train horn sound. Constructed of all metal with three (3) triple chrome plated trumpets and operated by a heavy-duty lanyard valve, included. The horn's base is painted steel. The Cannon Ball Express requires an on-board air system. Horn comes with all required mounting hardware, 10 foot length of 1/4" nylon high pressure hose and a heavy-duty lanyard valve. The Cannon Ball Express requires an on-board air system (recommended Wolo on-board air system is Model 840).

Will give any truck the powerful sound of a train air horn

Perfect choice when a truck owner demands an ultra-powerful horn

Constructed of all metal with three triple chrome plated trumpets

Requires an on-board air system

Horn comes with all required mounting hardware, 10 foot length of 1/4 inch nylon high pressure hose and a heavy-duty lanyard valve