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Lennox

OEM Lennox Scroll Compressor 3.5 Ton 208/230V R-22 — 40W59

SKU: LNX-40W59 Brand: Lennox
$389.95 $529.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 40W59 is an Interlink SQA042KAA scroll compressor rated at 41,200 BTUh (approximately 3.5 tons) for 208/230V single-phase R-22 systems. As the heart of your Lennox condensing unit, this compressor circulates and pressurizes refrigerant to drive the entire cooling cycle. Its scroll design delivers quiet, efficient, and reliable operation with fewer moving parts than reciprocating units.

Common failure symptoms: a failed compressor often presents as a unit that hums but won't start, tripping breakers, warm air from the vents, loud grinding or knocking noises, or a compressor that runs but produces no cooling. Overheating, a shorted or open winding, and locked-rotor conditions are typical end-of-life indicators.

Why OEM matters: using the factory-specified 40W59 guarantees correct displacement, electrical characteristics, and mounting fit for your Lennox equipment. OEM compressors preserve the engineered capacity and efficiency ratings of your system and protect any remaining manufacturer warranty, unlike generic substitutes that risk mismatched performance and premature failure.

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 Compressor fit my Lennox OEM Lennox Scroll Compressor 3.5 Ton 208/230V R-22 — 40W59?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Scroll Compressor 3.5 Ton 208/230V R-22 — 40W59. 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 compressor on my Lennox OEM Lennox Scroll Compressor 3.5 Ton 208/230V R-22 — 40W59?
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 compressor?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this compressor 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 compressor?
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