What are the specs for this Compressor?

The correct replacement for Lennox model OEM Lennox Scroll Compressor 42,000 BTU R-410A — 97M57 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 Scroll Compressor 42,000 BTU R-410A — 97M57.

What symptoms indicate I need a new compressor?

Common symptoms that indicate you need a new compressor include unusual noises, intermittent operation, complete failure to operate, or visible damage. For specific diagnostic guidance, visit nationalhvacparts.com/pages/hvac-diagnostic.

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Lennox

OEM Lennox Scroll Compressor 42,000 BTU R-410A — 97M57

Name: OEM Lennox Scroll Compressor 42,000 BTU R-410A — 97M57
Brand: Lennox
SKU: LNX-97M57
Price: 389.95 USD
Availability: InStock

SKU: LNX-97M57 Brand: Lennox

$389.95 $529.95

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The Lennox 97M57 is a genuine OEM Copeland ZP42K5E-PFV-830 scroll compressor rated at 42,000 BTUh (3.5 tons), operating on 208/230V, single-phase power with R-410A refrigerant. This compressor powers the refrigeration cycle in your Lennox condensing unit, compressing refrigerant vapor so heat can be released at the condenser coil. The Copeland scroll design is prized for its quiet operation, high efficiency, and long service life.

Common Failure Symptoms

Little to no cooling despite the unit running
Compressor buzzes or clicks but won't start
Frequent breaker trips or short-cycling
Loud mechanical noise or excessive vibration
Overheating and repeated overload trips

Why OEM Matters

The factory-authorized 97M57 is engineered to match your Lennox system's exact displacement, voltage, and oil charge. Aftermarket substitutes can cause capacity loss, oil-management issues, and premature failure that may void your warranty. Installing the correct OEM scroll compressor restores rated efficiency and dependable cooling. Ships same day when ordered before the daily cutoff.

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 Scroll Compressor 42,...

$389.95

Frequently Asked Questions

Does this Compressor fit my Lennox OEM Lennox Scroll Compressor 42,000 BTU R-410A — 97M57?

Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Scroll Compressor 42,000 BTU R-410A — 97M57. 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 42,000 BTU R-410A — 97M57?

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.