Airlift, Helper Springs, Air Springs, Air Compressor, Standard Duty, Gen II, Wireless, Digital, Rear Axle, Heavy Duty, Adjustable, Dual, Remote, Bluetooth, Controller, App, Dodge, Ram 2500, Ram 3500, 4WD. Air Lift 7500 Air Springs w/ WirelessAIR Compressor Kit for 03-18 Ram 2500 3500. LoadLifter 7500 XL Ultimate Air Spring Kit and WirelessAIR Compressor System for Dodge Ram 2500 3500 4WD. LoadLifter 7500 XL Ultimate Air Spring Kit. The LoadLifter 7500 XL Ultimate offers up to 7,500 lbs. Of load-leveling capacity, designed to support the most demanding loads. With the 7500 XL, level the load with less pressure and better ride quality. Get full-time support while you level your vehicle, improve braking and ride comfort, and reduce the strain on factory suspension. Up to 7,500 lbs. Eliminates squat, trailer sway, rough ride and bottoming out. Fits many 3/4 ton and 1 ton pickups and vans. Internal jounce bumper absorbs shock and can be safely ran with zero psi (Maintain minimum air pressure for the ultimate ride comfort). Fits single rear wheel (SRW) and dual rear wheel (DRW) models. Will fit ALL models without a fifth-wheel hitch and will also fit most side mount fifth wheel hitch applications. Fits factory in-bed hitch system. Weight: 44.1 lb. Replacement Air Spring: 50236. Application Type: Rear Kit. WirelessAir Air Compressor System. WirelessAir provides one-touch inflation and deflation of your air springs from inside or outside the vehicle. Control the air like a boss. WirelessAir is a dual-path wireless control system that includes a heavy-duty compressor. Air springs are controlled by the wireless controller or with a compatible smartphone and our free app and are programmable with up to three user-defined presets. Remote controller included in kit. Free iOS and Android mobile app easily connects with Bluetooth®-enabled manifold. Dual-path control of all brands of air springs. Control your air springs individually from anywhere, at any time. Easy installation with common mechanics tools. Included easy-to-read installation guide.