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Lennox

OEM Lennox Heat Exchanger Repair Parts Kit — 98W34

SKU: LNX-98W34 Brand: Lennox
$39.95 $54.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 98W34 heat exchanger repair parts (interchange 605996-53) provide the factory-specified hardware needed to service and reseal the heat exchanger in your Lennox gas furnace. These repair components ensure the heat exchanger and its combustion passages remain properly gasketed and sealed, keeping flue gases separated from the conditioned air in your home.

When you need this part: Repair parts like these are typically required when servicing, resealing, or reassembling a heat exchanger, or when original gaskets and mounting hardware have deteriorated. Signs that service is due include air leaks around the exchanger, degraded or crumbling seals, combustion odors, or a burner flame that reacts when the blower engages.

Why OEM matters: Heat exchanger seals and hardware operate under high heat and must maintain an exact, gas-tight fit. The OEM Lennox 98W34 repair parts are made to the correct material spec and dimensions, ensuring a reliable seal, preserving furnace efficiency, and keeping the unit within its original safety certification. Using factory-correct repair parts protects both performance and the integrity of your Lennox system.

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 Repair Parts Kit — 98W34?
Yes. This is the factory-specified OEM heat exchanger for the Lennox OEM Lennox Heat Exchanger Repair Parts Kit — 98W34. 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 Repair Parts Kit — 98W34?
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