Description
Product Overview
The Shaobrc Height Leveling Control Valve is engineered for commercial truck suspension systems that demand reliable air height regulation. Constructed from high‑grade metal with a machined exterior finish, the valve provides superior durability and resistance to corrosion. It features a compression‑type inlet connection and a standard NPT outlet, supporting seamless integration with existing air lines. The unit is compact, measuring 10.04 x 3.9 x 3.27 inches and weighing just 1.48 pounds, making it easy to handle during installation. Designed to replace OEM part numbers HV9990, 334‑1974, 171.H185K, and VS228, it ensures a direct fit for a range of models.
Usage
Ideal for long‑haul trucks, delivery vans, and heavy‑duty vocational vehicles, this valve maintains consistent ride height across varying loads. It is particularly suited for Freightliner, Barksdale, and Peterbilt series 335, 337, 357, 359, 377, 379, and 389. By regulating air pressure in the suspension, it enhances driver comfort, reduces tire wear, and improves vehicle handling on uneven terrain. 
Why Choose Us
Shaobrc combines rigorous visual inspection, durability testing, and precise calibration to guarantee each valve meets strict performance standards. Our manufacturing process emphasizes material quality and dimensional accuracy, resulting in a product that outlasts typical aftermarket replacements. With a focus on compatibility and ease of installation, we provide a reliable solution that minimizes downtime and maintenance costs.
Key Features
- High‑strength metal body with machined finish for long‑term durability
- Compression inlet and NPT outlet for straightforward integration
- Direct OEM replacement for part numbers HV9990, 334‑1974, 171.H185K, VS228
- Compatible with Freightliner, Barksdale, and Peterbilt truck models
- Compact size and lightweight design for easy handling and installation
FAQ
What vehicles are compatible with this valve?
The valve fits Freightliner, Barksdale, and Peterbilt models, including series 335, 337, 357, 359, 377, 379, and 389.
Is any special tool required for installation?
Standard hand tools for tightening compression and NPT fittings are sufficient; no specialized equipment is needed.
Does this valve come with a warranty?
Shaobrc does not provide a formal warranty, but each unit undergoes thorough quality testing before shipment.
Can this valve be used as a direct OEM replacement?
Yes, it is designed to replace OEM part numbers HV9990, 334‑1974, 171.H185K, and VS228 without modifications.
How does the valve improve ride quality?
By maintaining consistent air pressure in the suspension, the valve helps keep the vehicle at a stable height, reducing sway and improving comfort over uneven roads.





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