GM 2500HD/3500HD Direct Fit Onboard Air System and 730 Train Horn

SKU: GMHD-734 Categories: ,

$ 2,057.95 $ 1,399.95

Model GMHD-734

2007 – 2019 GMC and Chevrolet 2500HD & 3500HD

Basic hand tools are all you’ll need to install your own direct fit heavy-duty onboard air system that features a 150 PSI high output waterproof air compressor and Model 730 Demon™ spun steel triple train horn. No drilling, cutting or making any vehicle modifications are required. Everything needed comes in one box for a professional custom designed installation.

Kit comes complete with vehicle specific, direct fit powder coated steel brackets, all necessary hardware, wiring and air line as well as a quick connect tire inflator with storage bag.



Want to add more fun and versatility to your Kleinn Train Horn System? Add the Sniper™ Wireless Remote Horn Button (P/N 333). Now you can honk your Kleinn Train Horn from up to 200 feet away. It’s a great way to find your truck in a crowded mall parking lot or prank your friends.

Ultra BlastMaster

Want it louder? Add the Ultra BlastMaster™ Valve Upgrade (P/N 6890) to your order. This kit includes two more Vortex 6 all brass solenoid valves, 12 feet of 1/2″ air line and all the necessary fittings to mount a Vortex 6 valve on all three trumpets to deliver the maximum air volume and pressure.

Installation Instructions
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to
SKU: GMHD-734 Categories: ,
Kleinn Air Horns