Kleinn Direct Fit Train Horn and Onboard Air System for 2007-2019 GM 2500HD & 3500HD

THE GMHD-734 includes a 100% bolt-on onboard train horn system features direct fit vehicle specific mounting brackets. No cutting, welding or drilling is required. Kit includes the Demon™ model 730 train horn, 6450RC 150 PSI waterproof high output air compressor, powder coated steel 3-gallon air tank and remote mount quick connect tire inflator with storage bag. The horns be upgraded to be even louder by adding a P/N 6890 Ultra Blast Master™ Valve Upgrade Kit. System comes complete with all necessary air line, wiring and hardware for a professional looking installation.