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Trane VAL18910 Expansion Valve/TXV, R410A, 4.5 Ton

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Manufacturer:
Trane
Manufacturer #:
VAL18910
Parts Town #:
TRNVAL18910
Units:
Each
Fits Models:
View Models List

Trane VAL18910 Genuine OEM Replacement Part

A Trane VAL18910 Expansion Valve/TXV regulates refrigerant delivery in response to system demands, supporting consistent cooling performance when the machine is in use.

  • Engineered for durability, real OEM valves and fittings keep refrigerant flow stable to reduce strain on key components and avoid costly breakdowns
  • Fits Popular Models: WSC102H4RKA0500A1A1B000000000D0000000000, WSC102H3R0A040700000000A00000D1000000000, WSC102H3RCA04C0A1000700A00000D0000000000
  • Product Type: Expansion Valve/TXV
  • Refrigerant: R410A
  • Capacity: 4.5 Ton

Common Questions and Answers

Why is the Trane VAL18910 Expansion Valve/TXV a critical component in the system?

The expansion valve/TXV regulates refrigerant flow into the evaporator so the HVAC system can maintain proper pressure, temperature and efficient heat transfer during operation. Its design for R410A refrigerant and 4.5-ton capacity matters because correct metering supports stable performance, protects the compressor and keeps the heating and cooling unit operating as intended.

How can I identify if the Trane VAL18910 Expansion Valve/TXV might need replacement?

The expansion valve/TXV might need replacement if the heat pump shows poor cooling or heating performance, inconsistent coil temperatures, reduced efficiency or abnormal suction and superheat conditions. Physical signs can include refrigerant leaks, corrosion, frost buildup or contamination around the valve and you might notice environmental factors such as moisture exposure or debris that may contribute to wear or restricted operation.

Read More FAQs

Does the Trane VAL18910 Expansion Valve/TXV qualify for same-day shipping?

Yes! We offer same-day shipping on all in-stock real OEM heating and cooling parts Monday—Friday until 9 PM ET and on Saturday until 4 PM ET for online air orders. With our extensive system of fulfillment centers, we keep delivery as fast as possible.

How do I check the delivery status of my Trane VAL18910 Expansion Valve/TXV?

You can check the delivery status of your real OEM heating and cooling parts by heading to our Track My Order page and entering your order number or purchase order (PO) number along with your zip code. With 24/7 access to updates on your shipment, you'll always have the latest details right at your fingertips.

Is customer support available for the Trane VAL18910 Expansion Valve/TXV?

Absolutely! Customer support for real OEM heating and cooling replacement parts is available 8 AM to 9 PM ET Monday—Friday with chat, email and phone among the options. Go to our Contact Us page and find out how to connect with us if you have any questions.

Does Parts Town have a return policy for the Trane VAL18910 Expansion Valve/TXV?

Yes! Parts Town gives you the option to return most new, unopened real OEM heating and cooling replacement parts within 90 days of delivery, so check our Returns page to see if your purchase qualifies. If your order was fulfilled by a third-party seller, the return must be handled directly with them.

  • Length:
    5 in / 12.70 cm
  • Width:
    4.75 in / 12.07 cm
  • Height:
    4.75 in / 12.07 cm
  • Weight:
    Not Available