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Lennox

OEM Lennox Scroll Compressor 83,000 BTU R-410A 3-Phase — 79M91

SKU: LNX-79M91 Brand: Lennox
$389.95 $529.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The Lennox 79M91 is a genuine OEM ZP83KCE-TFD-830 scroll compressor rated at 83,000 BTUH for 460V, 3-phase systems charged with R-410A refrigerant. This compressor pressurizes and circulates refrigerant through the condenser and evaporator, making it the single most critical component in your Lennox air conditioner or heat pump.

Common failure symptoms: the outdoor unit trips the breaker on start-up, the compressor buzzes but won't turn over, cooling output drops noticeably, or you hear metallic knocking and rattling. Overheating, tripped overloads, and shorted or open windings are typical indicators the ZP83KCE has reached end of life.

Why OEM matters: designed specifically for high-pressure R-410A operation, the 79M91 matches Lennox's exact tonnage, oil type, and 460V 3-phase electrical spec. Using a non-OEM compressor risks incorrect capacity, refrigerant incompatibility, and accelerated wear that can damage the entire refrigerant circuit. Choosing the factory part restores full rated efficiency and preserves your equipment warranty.

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 83,000 BTU R-410A 3-Phase — 79M91?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Scroll Compressor 83,000 BTU R-410A 3-Phase — 79M91. 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 83,000 BTU R-410A 3-Phase — 79M91?
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