What HP motor do I need for my Lennox unit?

The correct replacement for Lennox model OEM Lennox Fan Motor — 25W66 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Lennox equipment which lists the model number OEM Lennox Fan Motor — 25W66.

My AC fan is not spinning. What part do I need?

A fan that does not spin, spins slowly, or makes grinding or squealing noises needs a new motor. Grinding means the bearings have failed. Squealing means the bearings are dry. No spin with a humming sound means the capacitor may be the issue. Check the motor capacitor before replacing the entire motor.

Lennox

OEM Lennox Fan Motor — 25W66

Name: OEM Lennox Fan Motor — 25W66
Brand: Lennox
SKU: LNX-25W66
Price: 99.95 USD
Availability: InStock

SKU: LNX-25W66 Brand: Lennox

$99.95 $139.95

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The genuine OEM Lennox 25W66 fan motor powers the air movement at the heart of your Lennox system, turning the blower or condenser fan to circulate air across the coil for proper heat exchange. Manufactured to Lennox's exact specification, it installs as a true drop-in replacement for the original.

Common signs that this motor is wearing out include weak or intermittent airflow, a fan that hesitates or fails to start, loud humming, rattling, or squealing bearings, and a motor that overheats and shuts down mid-cycle. Ignoring these warning signs can cause your system to short-cycle or stress the compressor.

Installing the OEM 25W66 is the safest choice for your equipment because Lennox engineers this motor to the precise voltage, speed, bearing, and rotation profile your unit requires. Off-brand replacements frequently mismatch these parameters, leading to noise, early failure, or reduced efficiency. The factory part preserves your warranty coverage and delivers the durability Lennox designed it for.

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

OEM Lennox Fan Motor — 25W66

$99.95

Frequently Asked Questions

Does this Fan Motor fit my Lennox OEM Lennox Fan Motor — 25W66?

Yes. This is the factory-specified OEM fan motor for the Lennox OEM Lennox Fan Motor — 25W66. 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 fan motor on my Lennox OEM Lennox Fan Motor — 25W66?

Difficulty: Medium-Hard (1–2 hrs)
Step 1: Turn off breaker. Step 2: Note motor specs: HP, RPM, voltage, rotation direction. Step 3: Remove old motor from mounting. Step 4: Transfer fan blade to new motor. Step 5: Mount new motor, reconnect wiring. Step 6: Restore power, verify rotation direction.

My AC fan isn’t spinning. What part do I need?

Fan not spinning, spinning slowly, or making grinding/squealing noises = motor failure. Grinding = bearings failed. Squealing = bearings dry. No spin + hum = check the motor capacitor first before replacing the entire motor.

Is this fan motor 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 fan motor?

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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OEM Lennox Fan Motor — 25W66

Shipping Information

Return Policy

Frequently Asked Questions