The RAM HD Heavy Duty Onboard Air System was designed with the serious truck owner in mind. The 100% Duty-Cycle system will supply air for inflating tires, powering air tools, air suspension and honking your Kleinn Train Horn. These kits include a heavy-duty 150 PSI waterproof air compressor, 3-gallon air tank and custom-made mounting brackets. The kits are 100% Bolt-On and require no drilling, welding or vehicle modification. You no longer need to spend hours designing and fabricating mounting brackets to install your air system and train horn. Included is a remote mount quick connect tire inflator with storage bag, all necessary hardware, airline and wiring. The RAM HD Systems are also available as a stand alone Onboard Air System without a horn.