Semi-Truck Horns Universal
Need to make some noise? Check out the best semi truck air horns over at 4 State Trucks. Whether you're into powerful train horns or sleek dual-tone options, we've got you covered for loud, reliable performance. Our top-rated truck horns will make sure you're heard. Explore and find the perfect fit for your rig today!
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3 Trumpet Chrome Train Horn With 9 Inch Air Valve Stand
UNITED PACIFIC
$220.99Chrome Plated 3 Trumpet Train Horn With Air Valve StandUpgrade your vehicle's horn system with our Train Horn set, a powerful addition for audible safety. This set includes three chrome-plated metal trumpets, each delivering an impressive sound output of...$220.99 -
Manual Lanyard Air Valve Pull Chain For Air Horns
WOLO MANUFACTURING
$13.99Lanyard Hand Pull Air Valve For 1/4 Inch Air Hose InstallationsManually pull the chain of this lanyard air valve on your truck to sound the horn. Use with air horns that require an on-board air system. It fits 1/4-inch diameter high pressure air hose...$13.99 -
Hadley Chrome Air Horn Mount Kit W/ Front Horn Support & Hardware
HADLEY
$9.29Hadley Chrome Air Horn Mount Kit W/ Hardware For Single Rectangular & Round Bell Horns W/3 Hole Pattern. * High Quality Air Horn Pedestal Kit* Measures 2 Inches Tall To Bottom Of Horn. 3-1/2 Inches Overall.* Includes- Pedestal- Mounting Hardware - (4)...$9.29 -
Stainless Steel Horn Cover Dome Style 7.25 Inch To 7.5 Inch
UNITED PACIFIC
$14.59Snap In Stainless Steel Dome Horn CoverUpgrade your vehicle's horn with our stainless steel Dome-Shaped Horn Cover. Crafted for durability and style, this cover adds a sleek touch to your horn setup. Designed to fit horns with a diameter ranging from 7...$14.59 -
Diaphragm For 3 Trumpet Train Horn
UNITED PACIFIC
$7.23Replacement 3 Trumpet Train Horn DiaphragmThis train horn, designed specifically to fit the 09-051354 model, features a 3-7/8 inch diameter and includes six evenly spaced holes around the circumference. Sold individually, this aftermarket replacement...$7.23 -
BESTfit Train Horn Manifold
BESTFIT TRUCK PARTS
$35.69BESTfit Train Horn ManifoldUpgrade your train horn system with our Train Horn Manifold, a crucial component for optimal performance. Sold individually as an aftermarket replacement part, this manifold is designed to efficiently distribute air to your...$35.69 -
BESTfit Rear Train Horn Cover
BESTFIT TRUCK PARTS
$17.33BESTfit Rear Train Horn CoverComplete your train horn assembly with our Horn Rear Cover, an essential component designed to enhance the appearance and protection of your horn. Crafted specifically for train horns, this rear cover is sold individually as...$17.33 -
Challenger EV 12V 125 Decibel 310-380 Hz Solenoid Operated Roof-Mount Chrome Air Horn
WOLO MANUFACTURING
$332.99Deluxe Roof-Mount Chrome-Plated Air Horn With 2.5 Liter Tank & Electric Solenoid ValveThe Model 810 Challenger EV produces an ultra-powerful, big rig alerting sound controlled by a 12 volt heavy-duty electric solenoid valve. The horn?s base is painted...$332.99 -
Chrome 3 Trumpet Competition Series Train Horn W/ 150 db +- 10db Sound Output
UNITED PACIFIC
$145.99Chrome 3 Trumpet Train HornUpgrade your vehicle's horn to the Competition Series Train Horn for an unmistakable and commanding sound. Crafted from durable chrome-plated metal, this horn set features three trumpets for an intense, super loud sound that...$145.99 -
Model 350 12V 105 Decibel Shrill Two Tone Wolf Whistle
WOLO MANUFACTURING
$27.994 X 4 X 4.5 Inch Shrill Two Tone Wolf Whistle * High Quality Horn* Wolf Whistle* 105 Decibels* 12-Volt Current* 1 AMP * Speaker Size- Length 4 Inch- Width 4 Inch- 4.50 Inch Width* Sold Individually* Warranty On Horn Set Against Defects in Workmanship &...$27.99 -
Nexgen Express 12-Volt / 80-Watts Electronic Train Horn
WOLO MANUFACTURING
$188.9912-Volt / 80-Watts Electronic Train HornFind your compact electronic train horn designed to fit the engine compartment of cars, SUVs and even compact vehicles at 4 State Trucks. This Wolo horn is simple to install. Just mount the compact speaker and...$188.99 -
30 Inch Hadley Style Round Bell With Square Back
HADLEY
$271.9930 Inch Long Hadley Style Round 7.25 Inch Bell With Square Back * High Quality Air Horn * 30 Inch Length* With 7.25 Inch Round Bell* Square Back* Horn Support Not Included* 7/16-24 Air Connection* Single Trumpet* Bell Cover Included* Made In USA* Sold...$271.99