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Lennox

OEM Lennox Reversing Valve Kit — 49W64

SKU: LNX-49W64 Brand: Lennox
$59.95 $84.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 49W64 reversing valve kit is the component that lets a heat pump switch between heating and cooling by reversing the direction of refrigerant flow. Supplied as a complete kit for correct installation, it is engineered to Lennox heat pump specifications so your system reliably changes modes and maintains proper refrigerant charge and pressure.

A malfunctioning reversing valve often shows up as a heat pump stuck in one mode — blowing cold air in heating season or warm air in cooling season — failing to change over on demand, a loud hissing or clunking during mode transitions, or inconsistent temperatures throughout the home. A stuck or leaking valve can leave the system unable to satisfy the thermostat at all.

Choosing the OEM 49W64 kit matters for Lennox equipment because reversing valves are matched to the system's refrigerant type, capacity, and solenoid control circuit. A factory kit ensures correct port sizing, leak-free connections, and full compatibility with Lennox controls — critical for restoring proper heat pump performance and protecting the compressor.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Valve fit my Lennox OEM Lennox Reversing Valve Kit — 49W64?
Yes. This is the factory-specified OEM valve for the Lennox OEM Lennox Reversing Valve Kit — 49W64. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the valve on my Lennox OEM Lennox Reversing Valve Kit — 49W64?
Requires licensed HVAC technician. Gas valve work involves gas lines that must meet local building codes. Improper installation risks dangerous gas leaks. Buy the part yourself to save 40–60% on markup, then have your technician install it.
What symptoms mean I need a new valve?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this valve compatible with Bryant or Payne too?
Many Lennox parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Lennox valve?
Always use OEM. Gas valves must match exact pressure ratings, port configurations, and safety certifications. Non-OEM gas valves can create safety hazards and may violate building codes.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
HVAC Parts Specialist — Online