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Lennox

OEM Lennox Replacement Burner Kit — Y5347

SKU: LNX-Y5347 Brand: Lennox
$49.95 $69.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox Y5347 replacement burner kit delivers factory-matched burner components to bring your Lennox gas furnace back to clean, reliable combustion. The burners blend gas and air and carry a stable flame across the heat exchanger, driving the safe and efficient heat transfer your furnace depends on during every heating cycle.

Common failure symptoms: Aging or corroded burners often lead to slow or failed ignition, yellow or lifting flames, rumbling noise, flame roll-out, soot buildup, short-cycling, and flame-sensor lockouts. Irregular flame appearance or repeated lockouts typically point to burners that need replacing.

Why OEM matters: The Y5347 kit is built to Lennox's precise port pattern, burner spacing, and gas ratings so the ignition sequence, flame sensor, and heat exchanger all perform as engineered. Substitute burners can change the air-fuel ratio and flame placement, threatening combustion safety and equipment warranties. The OEM kit restores dependable ignition, proper flame quality, and full rated performance.

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 Burner fit my Lennox OEM Lennox Replacement Burner Kit — Y5347?
Yes. This is the factory-specified OEM burner for the Lennox OEM Lennox Replacement Burner Kit — Y5347. 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 burner on my Lennox OEM Lennox Replacement Burner Kit — Y5347?
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 burner?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this burner 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 burner?
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