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Lennox

OEM Lennox LP Gas Valve 104119-02 — 14C42

SKU: LNX-14C42 Brand: Lennox
$169.95 $229.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 14C42 (factory part number 104119-02) is a liquid propane (LP) gas valve built for Lennox furnaces configured to run on propane. It regulates the flow and pressure of LP fuel to the burners, opening and closing on command from the furnace control to provide safe ignition and consistent heat. Because propane operates at different pressures than natural gas, this LP-specific valve is calibrated accordingly.

Common failure symptoms: A failing 14C42 may present as no ignition, intermittent lighting, weak or fluctuating flames, short cycling, or repeated safety lockouts. Inconsistent heat, clicking without ignition, or evidence of a gas leak all point to a valve that needs prompt replacement for safe propane operation.

Why OEM matters: LP gas valves must match exact propane pressure and electrical specifications to operate safely with your Lennox furnace. The OEM 14C42 is factory-calibrated for LP service, ensuring correct fuel delivery, proper combustion, and full safety compliance. Substituting a natural-gas or universal valve can create dangerous conditions and void your warranty — always use the matched OEM part.

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 Gas Valve fit my Lennox OEM Lennox LP Gas Valve 104119-02 — 14C42?
Yes. This is the factory-specified OEM gas valve for the Lennox OEM Lennox LP Gas Valve 104119-02 — 14C42. 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 gas valve on my Lennox OEM Lennox LP Gas Valve 104119-02 — 14C42?
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 gas valve?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this gas 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 gas 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