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Lennox

OEM Lennox Heat Exchanger Assembly — 13X41

SKU: LNX-13X41 Brand: Lennox
$399.95 $549.95

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Texas CMBL #19328542014
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The Lennox 13X41 is a genuine OEM heat exchanger assembly (factory reference 612224-06) made for Lennox gas furnaces. The heat exchanger transfers burner heat into the air circulating through your furnace while sealing combustion byproducts away from your home's air supply, keeping carbon monoxide out of the living space. Manufactured to Lennox specifications, it reproduces the exact heat transfer surface and airflow path your furnace was designed to use.

Common failure symptoms: Look for cracks, rust, or scaling on the exchanger cells, a burner flame that shifts or rolls out when the blower engages, soot deposits, rumbling or popping sounds during operation, and repeated shutdowns on the safety limit switch. A carbon monoxide detector alarm is the most serious symptom and should prompt an immediate inspection and replacement.

Why OEM matters: The heat exchanger is a critical safety component, so the genuine Lennox 13X41 is the right choice. OEM construction guarantees the correct metallurgy, dimensional accuracy, and sealing integrity needed for a leak-free installation and full rated efficiency. Aftermarket alternatives can fail to seal properly and allow dangerous combustion leaks — safeguard your furnace and your household with the authentic Lennox 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 Heat Exchanger fit my Lennox OEM Lennox Heat Exchanger Assembly — 13X41?
Yes. This is the factory-specified OEM heat exchanger for the Lennox OEM Lennox Heat Exchanger Assembly — 13X41. 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 heat exchanger on my Lennox OEM Lennox Heat Exchanger Assembly — 13X41?
Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.
What symptoms mean I need a new heat exchanger?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this heat exchanger 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 heat exchanger?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
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