Air Suspension Helper Kit w/Compressor, White Gauge & Tank. Air Compressor Control Inside Cab. (will not fit trucks with rear sway bar). 2 – Standard 2500lb Air Springs. Bag Mounting Brackets With Hardware. Pewter AM400 Air Compressor. 1/4 Stainless Steel Braided Leader Hose. 1/4NPT Check Valve. 2 – 1/4NPT Brass Air Valves. Premium 40 Amp Relay 15′ Roll of 1/4 Air Hose. 200 PSI Dual Needle White Face Air Gauge with Mounting Bracket. Air Hose Fitting Kit. 12 Volt Electric Valve Control Rocker Switch. 3 Gallon 6 Port Seamless Aluminum Air Tank. Replaces Factory Bumpstops (requires light trimming of upper bump stop mount to install) Provides Up To 5000lbs Of Leveling Capacity. AirMaxxx Tow Assist Convenience Package in Cab Air Control on Board Air Management Allows in-cab air pressure control to your tow helper/load assist kit or single zone air bag system. Durable compressor included quickly fills air directly to bags with a simple push of a switch. Have a train horn? This kit will include what you need to plumb it in as well. Need to fill a tire or run an air tool? This kit will do just that. No specialty tools are required for install. Never exceed more than truck manufacturers maximum load recommendations.