What are the specs for this Compressor?

The correct replacement for Lennox model OEM Lennox Copeland Scroll Compressor — 11C43 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 Copeland Scroll Compressor — 11C43.

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 Copeland Scroll Compressor — 11C43

Name: OEM Lennox Copeland Scroll Compressor — 11C43
Brand: Lennox
SKU: LNX-11C43
Price: 389.95 USD
Availability: InStock

SKU: LNX-11C43 Brand: Lennox

$389.95 $529.95

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The genuine OEM Lennox 11C43 Copeland Scroll compressor drives the refrigeration cycle in your Lennox cooling or heat pump system. Its scroll design uses two interleaved spirals to compress refrigerant smoothly and continuously, delivering quieter operation, higher efficiency, and greater reliability than older reciprocating designs. Built to Lennox factory specifications, the 11C43 is a direct replacement that matches the displacement, voltage, and capacity your outdoor unit was designed around.

Common failure symptoms include the outdoor unit humming or buzzing without starting, breakers tripping when the system calls for cooling, weak or warm airflow, unusually loud operation, or the compressor cutting out on thermal overload. Oil staining around the base or a burnt smell often signals internal electrical failure or a seized scroll set.

Why OEM matters: Copeland Scroll compressors supplied through Lennox are calibrated to work with your system's metering device, charge, and controls. Choosing the OEM 11C43 maintains rated SEER efficiency, prevents compatibility problems, and safeguards your equipment warranty. Refrigerant recovery and installation should always be performed by a licensed HVAC professional.

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 Copeland Scroll Compr...

$389.95

Frequently Asked Questions

Does this Compressor fit my Lennox OEM Lennox Copeland Scroll Compressor — 11C43?

Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Copeland Scroll Compressor — 11C43. 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 Copeland Scroll Compressor — 11C43?

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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OEM Lennox Copeland Scroll Compressor — 11C43

Shipping Information

Return Policy

Frequently Asked Questions