York S1-325-44123-000 Gas Valve

The York S1-325-44123-000 Gas Valve is an OEM-standard component engineered for precise fuel regulation in residential and light commercial equipment. This 24V natural gas valve is factory-set to a 3.5" WC manifold pressure, ensuring stable burner performance and optimal combustion efficiency. Featuring high-grade 1/2" NPT inlet and outlet ports, this HVAC gas control valve integrates directly into the existing gas train without the need for complex modifications. As a veteran technician knows, maintaining correct gas pressure is critical for avoiding rollout and ignition delay. This unit serves as the direct manufacturer replacement for legacy models 325-37426-000, S1-2702-326P, and S1-2702-331P. When sourcing York HVAC parts, utilizing genuine components ensures compatibility with the furnace control board’s sequences. This York furnace gas valve provides the reliability required for harsh winter duty cycles, preventing common diagnostic faults associated with solenoid failure or internal diaphragm issues.

• Precision regulation at 3.5" Water Column for consistent thermal output.
• Standard 1/2 inch connection for seamless installation in York S1-325-44123-000 applications.
• Redundant solenoid design for safe fuel shut-off during system calls.
• Verified OEM cross-compatibility with older S1-2702-331P and S1-2702-326P units.

Is this valve compatible with liquid propane (LP) systems?
This specific model is configured for natural gas. For LP applications, a manufacturer-approved conversion kit must be used to ensure the orifice and spring settings meet pressure requirements.

How do I verify if the solenoid is faulty?
Using a multimeter, technicians should check for 24VAC at the valve terminals during the ignition trial. If voltage is present but the valve fails to open, the internal operator may be seized or the coil may be open.

What does the 3.5" WC rating indicate?
This refers to the Water Column pressure at the outlet tap. It is the standard setting for most natural gas furnaces to achieve the rated BTU input while maintaining safe carbon monoxide levels.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.