Compatibity/Fitment: Height Control Leveng Valve Fits Hadley, , Kenworth 20-QE-3126 OEM is manufactured with exact OEM specifications. Fits Peterbilt: 03-01633, 03-01634, 03-05473, 03-06212, 306212, Haldex: 90555121, 90555375 Dimensions: Lever Arm: 7” Adjustable Arm; Supper Port: 3/8" Push to Connect - 1; Suspension Port: 3/8" Push to Connect - 1 Installation: Mount the leveng valve at the designated location, connect air nes, and secure it with bolts. Adjust the lever arm to the proper ride height and check for air leaks after installation. Recommended For: Leveng valves maintain consistent vehicle ride height, ensuring stabity and proper suspension function, improving comfort, and reducing wear on suspension components. Warranty: 18-month Warranty: This product is covered for one year or completion of 100,000 miles since installation or 18 months after your purchase, whichever comes first.

Our leveling valve is a direct replacement for OEM part number 20-QE-3126. It serves as a direct replacement for multiple OEM parts, including Hadley and Haldex models, making it ideal for a wide range of applications in air suspension systems. This part is compatible with leading brands like Freightliner, , Mack, and International Trucks. Our trailer leveling valve is designed to maintain optimal vehicle ride height in heavy-duty trucks. The other important details of the leveling valve are as mentioned below:

• Application: Our trailer leveling valve is a critical part of the vehicle’s air suspension system. It helps trucks to maintain a consistent ride height even during load changes. It provides a smoother ride by adjusting air pressure in the suspension to compensate for road conditions and load variations.
• Adjustable lever arm: Our leveler valve comes with an adjustable lever arm in 7" size which allows it to fine-tune the valve’s height-sensing mechanism. It helps the valve to adapt to the specific requirements of the vehicle’s suspension system. It also promotes a balanced ride and reduces wear on tires and other suspension components.
• Push-to-Connect Fittings: The air leveling valve is equipped with a 3/8" push-to-connect supply and suspension ports to simplify installation and ensure a secure, leak-free connection to the air suspension system.
• Compatibility: This leveling valve is compatible with a wide range of truck models, such as Freightliner, Haldex and among others. This broad compatibility ensures that it works seamlessly across multiple makes and models.

• • Fits Peterbilt: 03-01633, 03-01634, 03-05473, 03-06212, 306212
  • Fits Velvac: 034114
  • Fits Crane Carrier: 12144, TTN12144
  • Fits Triangle Air Springs: 1322, AS-1322
  • Fits Tectran: 14525, 80-450CE
  • Fits Navistar: 1670-556-C, 1670556C, 1670556C91, 574-696-C, 574696C, 574696C91
  • Fits Automann: 171.90555375, 171.H00450CA, 171.H00450CE, 171.H00450HE, 171.H909, AM171H00450CA, AM171H00450CE
  • Fits Mack: 20-QE-3126, 20-QE-3126-P2, 20QE3126, 20QE3126P2, 20QE3191, FS-H00450CE, MID90555375
  • Fits Dayton Parts: 334-750
  • Fits OE Aftermarket: 334750, 801006, E-9624, H-00450-AJ, H-00450-CR, H00450BB, H00450BS, H00450CA
  • Fits PAI: 3627, 36270, EM36280, LCV-3628
  • Fits Haldex: 90555121, 90555375, H450CE
  • Fits Euclid: E-9623, E9623
  • Fits Hadley: H00450AM, H00450C, H00450CE, H00450CR, H00450HE, H0045AJ, H450, H450CL, H909
  • Fits Freightliner: HDX 90555375, HDYH00450CE
  • Fits Torque: TRH00450CE

Installation: The leveling valve comes with user-friendly push-to-connect fittings that make installation straightforward. However, it is important to follow proper guidelines:

• Ensure that the air system is depressurized before installation.
• Secure all connections to prevent leaks.
• Follow manufacturer torque specifications for mounting.

When to Replace it

• If there is noticeable uneven ride height or sagging suspension.
• If the vehicle rides rough or feels unbalanced.
• When air leaks are detected in the suspension system.
• If the original leveling valve is damaged or malfunctioning.
• During routine suspension system maintenance or part inspections.

Why to Choose this Leveler Valve

• Works with OEM part number 20-QE-3126 and provides flexibility.
• An adjustable lever arm that allows fine-tuning for enhanced ride stability.