Leveling Valve Leveling valves are installed in vehicles with air suspension and control the height of the chassis. Any possible height changes due to variable loads are compensated automatically. Replace Part # 90054007, 90054007, TR90054007 Used in all Neway Airide models. All ports are 1/8″ NPT threaded. Automatically adds air to or releases air from the air suspension to maintain a constant static height of the structure. Does not react to short-term dynamic changes in axle position, thereby reducing air consumption, which extends the life of the compressor and saves fuel. Application: Chevrolet / GM 22040570 Chevrolet / GM 5549705 Firestone WC13583599 Haldex 90554928 Kenworth K2954171 Kenworth K295-4171 Meritor R304323 Neway 90054007 Oshkosh 121288B Watson & Chalin 10464