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Lennox

OEM Lennox Desuperheating Valve — 85K65

SKU: LNX-85K65 Brand: Lennox
$59.95 $84.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Lennox 85K65 is a genuine OEM desuperheating valve designed to reduce excessive refrigerant superheat within Lennox HVAC systems, protecting downstream components such as the compressor from dangerously high discharge temperatures. By injecting a controlled amount of liquid refrigerant into the discharge line, this valve lowers the temperature of superheated gas before it reaches sensitive system components, improving efficiency and extending equipment life. Signs of a failing desuperheating valve include abnormally high compressor discharge temperatures, reduced system efficiency, compressor overheating faults, or refrigerant temperature imbalances throughout the system. Install the Lennox 85K65 OEM replacement to maintain proper thermal management and safeguard your Lennox system's long-term reliability.

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 Desuperheating Valve — 85K65?
Yes. This is the factory-specified OEM valve for the Lennox OEM Lennox Desuperheating Valve — 85K65. 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 Desuperheating Valve — 85K65?
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