4-way valves
4-way valves manage air distribution across multiple circuits. They enable controlled operation of different air systems from a single control point.
A 4-way valve is used when compressed air needs to be directed to more than one circuit within a vehicle. With its four connection ports, it can distribute or switch airflow depending on the system configuration. Proper control of pressure and timing is key for reliable operation.
In trucks and trailers, 4-way valves are commonly found in systems such as air suspension, trailer steering, or auxiliary air functions. By handling multiple outputs with one unit, these valves improve installation efficiency and reduce the amount of hose routing required.
A faulty or leaking 4-way valve can cause circuit imbalance, air loss, or failure of connected functions. That’s why choosing high-quality components is essential, especially in demanding environments with fluctuating pressure and temperature.
Key features and uses:
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Directs or switches air to multiple circuits
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Ideal for air suspension, trailer steering, and auxiliary systems
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Enhances pneumatic layout and system efficiency
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Durable under pressure, heat, and vibrations
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Compatible with various vehicle types and configurations
At Sanders Parts, we offer OEM-grade 4-way valves designed for durability, accuracy, and system integration — for air control you can rely on.