York S1-021-31419-000 Washer

The York S1-021-31419-000 Washer is a critical OEM replacement part engineered specifically for Thermal Expansion Valve (TXV) assemblies. As a veteran technician knows, maintaining pressure integrity within the refrigeration circuit is non-negotiable. This TXV sealing washer is designed to sit between valve components, providing a precise mechanical seal that prevents refrigerant leaks and ensures consistent superheat control across the evaporator coil. Manufactured to exact Source 1 technical specifications, this part eliminates the variability found in generic alternatives, ensuring a perfect fit for York, Luxaire, and Coleman HVAC systems.

When performing TXV troubleshooting or a full valve replacement, reusing old gaskets often leads to micro-leaks that compromise system efficiency. The S1-021-31419-000 is built from high-grade materials compatible with modern HVAC refrigerants and oils, preventing material degradation over time. Whether you are servicing a residential split system or a light commercial rooftop unit, having this York HVAC washer in your kit ensures you can complete the refrigerant flow control assembly without unplanned downtime or return trips due to seal failure.

• Ensures a leak-proof seal within the TXV assembly to maintain system charge.
• Compatible with York, Coleman, and Luxaire refrigeration equipment.
• Critical for refrigerant flow management and maintaining proper evaporator pressure.
• Durable OEM-grade construction designed to withstand high-pressure HVAC environments.
• Direct replacement for S1-021-31419-000, ensuring zero-clearance fitment.

Where is this washer typically installed?
This washer is utilized within the thermal expansion valve union or internal assembly to provide a robust seal between the valve body and the refrigerant lines or sensing components.

Can I use a standard nylon washer instead?
No. HVAC refrigeration systems require specific OEM washers like the S1-021-31419-000 that are rated for high-pressure fluctuations and chemical compatibility with refrigerants and POE/PVE oils.

When should this part be replaced?
It is standard practice for HVAC contractors to replace the TXV washer every time the expansion valve is opened, serviced, or replaced to prevent pressure loss.

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.