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OEM Lennox Draft Inducer Motor Assembly — 99K57
Lennox

OEM Lennox Draft Inducer Motor Assembly — 99K57

SKU: LNX-99K57 Brand: Lennox
$159.95 $219.95

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Texas CMBL #19328542014
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Govt POs Accepted

The genuine OEM Lennox 99K57 draft inducer motor assembly pulls combustion gases through the heat exchanger and safely expels them out the flue before and during furnace ignition. This pre-purge and venting action is essential for safe operation, and the pressure switch relies on the inducer establishing proper airflow before the gas valve is allowed to open.

When a draft inducer motor wears out, you'll often hear loud humming, grinding, or rattling from the furnace, notice the blower failing to start, or find the system locked out on a pressure-switch fault. Failed bearings or a seized motor will prevent the furnace from igniting at all.

The OEM 99K57 arrives as a complete assembly matched to your Lennox furnace's airflow and mounting requirements, including the correct blower wheel and housing. Aftermarket substitutes can deliver incorrect CFM that trips the pressure switch or causes incomplete combustion. This factory-authorized part restores proper draft, safe venting, and reliable ignition.

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 Draft Inducer fit my Lennox OEM Lennox Draft Inducer Motor Assembly — 99K57?
Yes. This is the factory-specified OEM draft inducer for the Lennox OEM Lennox Draft Inducer Motor Assembly — 99K57. 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 draft inducer on my Lennox OEM Lennox Draft Inducer Motor Assembly — 99K57?
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 draft inducer?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this draft inducer 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 draft inducer?
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