What HP motor do I need for my Lennox unit?

The correct replacement for Lennox model OEM Lennox Condenser Fan Motor — Y4957 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 Condenser Fan Motor — Y4957.

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 Condenser Fan Motor — Y4957

Name: OEM Lennox Condenser Fan Motor — Y4957
Brand: Lennox
SKU: LNX-Y4957
Price: 119.95 USD
Availability: InStock

SKU: LNX-Y4957 Brand: Lennox

$119.95 $159.95

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The genuine OEM Lennox Y4957 condenser fan motor powers the fan in your outdoor condensing unit, moving air over the condenser coil so your Lennox system can expel the heat it collects indoors. Adequate condenser airflow directly determines cooling capacity and operating efficiency, and the Y4957 is a direct factory replacement built to the original RPM, voltage, and rotation specifications.

Common failure symptoms: a fan that won't spin or starts only with a push, humming without rotation, slow or intermittent operation, grinding and squealing bearing noise, an overheating outdoor unit, warm air from the vents, and compressor trips caused by elevated head pressure. Motors at end of life often draw high amperage and trip the breaker.

Why OEM matters: Lennox engineers its condensers around exact motor characteristics, so the OEM Y4957 restores proper airflow, precise fit, and full-rated service life. Generic replacements may differ in shaft size, rotation, or capacitor requirements, leading to poor cooling, premature failure, or voided warranty coverage. Install the OEM part for confident, long-lasting 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

OEM Lennox Condenser Fan Motor —...

$119.95

Frequently Asked Questions

Does this Fan Motor fit my Lennox OEM Lennox Condenser Fan Motor — Y4957?

Yes. This is the factory-specified OEM fan motor for the Lennox OEM Lennox Condenser Fan Motor — Y4957. 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 Condenser Fan Motor — Y4957?

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 Condenser Fan Motor — Y4957

Shipping Information

Return Policy

Frequently Asked Questions