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, Kenworth, 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 Kenworth 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 Kenworth: H-00450-CE, H0045032
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.
Withstands rigors of heavy-duty truck operations.
Compatible with multiple truck models such as Freightliner, Hadley, Haldex, Kenworth, Mack, Pai Industries, Peterbilt, and International Truck.
Easy Installation with the push-to-connect feature.
No delay in air pressure adjustment, ensuring smooth, real-time ride height connections.
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.