12 volt Retro Loud Automotive Bull Horn Car Truck 4 x 4 12v Cow 8" x 6-1/4". Brand new 12 volt Retro Raging Bull Horn. This horn will work great for 12 volt trucks, imports, hot rods, or any projects you are building, and lets out a very loud Bull/Cow sounding Blast. This heavy duty horn features rugged construction, and easy mounting. Please wait for us to send you a combined invoice before paying. We are Gearhead Enterprises - a national street rod parts supply company. Parts are added to our store weekly so check often for the latest deals! Plus, we have access to thousands of ...