Air Height Control Leveling Valve Kit for Truck 90054007 Used for on all Neway models. All ports are 1/8inch NPT. equipment on many Trucks and Trailers Automatically adds air to, or exhausts air from air suspension to maintain constant static design height. Does not respond to short duration dynamic changes in axle position, thus reducing air consumption which extends compressor life and saves fuel. tip: Dump valve is not included Reference: for / 22040570 for / 5549705 for WC13583599 for 90554928 for K2954171 for K295-4171 for Meritor R304323 for Neway 90054007 for Oshkosh 121288B for & Chalin 10464 Material: Metal colour: As shown Package Contents: 1 x Air Height Control Leveling Valve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.