Model 820-858
Giant® Pro
Low Tone 285 Hz / 130 Decibel 12-Volt Solenoid Operated

The GIANT PRO produces a powerful truck horn sound, utilizing a heavy-duty 12-volt solenoid to activate the horn. All metal construction, chrome plated throughout to withstand the extremes in all weather conditions and to provide years of dependable service. Provided with the horn is a metal front pedestal support that is chrome plated. The support bracket will help to eliminate trumpet vibration at high speeds and on the roughest roads. A front deflector cover provides protection against rain, road dirt, snow, and bugs from entering the horn’s trumpet, protecting the sound and your investment. The air feeder hose connection is made through the base of the horn and is not externally visible. Installation of the high-pressure air lines is made easy with Wolo’s flexible inlet hose with brass fittings. The GIANT PRO has a beautiful bright chrome appearance that will look great on any truck, big or small, providing an alerting sound THAT WILL BE HEARD! The on-board air system provided is designed to produce a large volume of high-pressure air to power the GIANT PRO TRAIN HORN and includes everything necessary for a professional installation. The compressor has a heavy-duty 12-volt motor that is balanced to precision. There are 4 heavy rubber bushings mounted into the compressor base plate to virtually eliminate vibration. For surface mounting of the compressor, there is an extended length stainless steel high-pressure hose that connects the compressor to the 2.5-gallon metal air storage tank. Other features of the GIANT PRO includes; an air storage tank that has a built-in pressure switch, manual water drain, pressure gauge, pressure relief valve and brass fittings. Kit also comes with mounting hardware, 10 ft. of flexible high-pressure hose and 20 ft. coiled filler hose with quality brass fittings, stainless steel mounting hardware, flexible inlet hose, and rubber gaskets for a watertight installation.