The trailer leveling valve from us is a replacement for OEM part H600. Our height control valve is designed to fit different multiple heavy-duty trucks such as Kenworth, Mack, , Meritor, and International truck models. Our air leveling valve can be crucial for you to maintain vehicle stability as it ensures suspension leveling across different road conditions. The other crucial details of this leveler valve are as mentioned below:Application: The leveling valve adjusts the air suspension in response to changes in vehicle load. It helps to provide a consistent ride height and improves vehicle handling. Our trailer leveling valve also helps you maintain proper leveling and prevent uneven tire wear, minimize suspension stress, and promote passenger comfort. Durable and Functional Design: The leveling valve has a 1/8" NPT supply port and one air connection port to provide seamless integration with the existing air suspension system. The two lever arms in 1/16" and 4" size provides flexibility to fit different vehicle configurations and make installation easier and more reliable.Compatibility: Our air leveling valve can fit different truck models including Kenworth H600, Mack 20-QE-2373, Meritor E-11464, 20470002, and International trucks such as 2505489C91 and 2507385C91.Fits OE Aftermarket: 0118-37808-000, 20724370, 2505489C91, 2507385C1, 3457333, 5105541, H600Fits Batco: 03-2139 Fits Velvac: 032139 Fits Paccar Parts: 032139VEL Fits Automann: 171.H00600, 171.H00600P, 171.H00600POE, AM171H00600POE Fits Freightliner: 18-28710-000 Fits Mack: 20-QE-2373, 20-QE-373, 20QE2373, 25155047, 8846-032139 Fits Navistar: 2505-489-C, 2507-385-C, 595-979-C, 595-979-C93, VEL032139 Fits PAI: 3409, LCV-3409 Fits Euclid: E-11464 Fits Haldex: H00600PFits Torque: TRH00600P Installation:Our leveling valve comes with the necessary brackets and fittings to provide an easy and smooth installation process. It is recommended to follow proper installation guidelines and torque specifications to avoid over-tightening or incorrect positioning. Do not forget to confirm the vehicle's compatibility and OEM part number before proceeding with the installation to ensure correct fitment.When to Replace It?The air suspension is not leveling properly.If there is any noticeable sagging in the vehicle’s ride height.If you notice any uneven tire wear or improper vehicle handling.When you hear any air leaks or hissing sounds near the valve.If there is any visible wear or damage to the leveling valve components.Reasons to Get This Leveling ValveDirect replacement for OEM part number H600, and fits multiple truck brands.Withstands harsh road conditions and heavy loads.Easy to install with all necessary hardware.Helps to improve ride stability by maintaining proper suspension leveling.18-month Warranty: This product is covered for one year, 100,000 miles after the installation, or 18 months after the purchase, whichever comes first. The product’s warranty is only active when the parts have defective material or workmanship defaults. Inappropriate application will lead to the dismissal of the warranty. Additionally, the warranty doesn’t cover the parts that fail or get damaged due to misuse, misapplication, or accident. If the customer wishes to return/replace this product under warranty, reach out to us. The team will verify by doing a thorough inspection and if they find a defect that is covered in the above-mentioned warranty; the product will be replaced without any charge. We disclaim liability for labor or consequential damages of any nature. We request the customers to wait until the claim is resolved and settled from our end after the replacement is requested under warranty.