What are the specs for this Valve?

The correct replacement for Lennox model OEM Lennox Expansion Valve — 16N31 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Lennox equipment which lists the model number OEM Lennox Expansion Valve — 16N31.

What symptoms indicate I need a new valve?

Common symptoms that indicate you need a new valve include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

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Lennox

OEM Lennox Expansion Valve — 16N31

Name: OEM Lennox Expansion Valve — 16N31
Brand: Lennox
SKU: LNX-16N31
Price: 59.95 USD
Availability: InStock

SKU: LNX-16N31 Brand: Lennox

$59.95 $84.95

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The Lennox 16N31 is a genuine OEM thermostatic expansion valve designed to precisely control the flow of refrigerant into the evaporator, maintaining ideal superheat and system efficiency in compatible Lennox HVAC equipment. When an expansion valve fails, common symptoms include loss of cooling, frozen evaporator coils, high head pressure, or compressor overheating. Replace with this authentic Lennox component to restore factory-level performance and protect your system from further damage.

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

OEM Lennox Expansion Valve — 16N31

$59.95

Frequently Asked Questions

Does this Valve fit my Lennox OEM Lennox Expansion Valve — 16N31?

Yes. This is the factory-specified OEM valve for the Lennox OEM Lennox Expansion Valve — 16N31. 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 Expansion Valve — 16N31?

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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OEM Lennox Expansion Valve — 16N31

Shipping Information

Return Policy

Frequently Asked Questions