Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart

IMAGE COMING SOON

Lennox

OEM Lennox Compressor — 14K56

SKU: LNX-14K56 Brand: Lennox
$389.95 $529.95

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The genuine OEM Lennox 14K56 compressor is the heart of your outdoor condensing unit, circulating and pressurizing refrigerant to move heat out of your home. It is matched to the exact capacity, refrigerant type, and electrical characteristics of your Lennox system, delivering the rated cooling performance and efficiency the equipment was engineered to provide.

A failing compressor often shows itself through a system that runs but no longer cools, a unit that hums or trips the breaker on startup, loud knocking or clattering, or a hard-start condition where the motor struggles to spin up. Internal winding failures, seized bearings, or valve damage can leave the compressor unable to build pressure, halting cooling entirely.

OEM is essential for this high-value component: the 14K56 is engineered to the precise displacement and refrigerant tolerances of your Lennox condenser, so pressures, capacity, and efficiency stay within spec. A mismatched aftermarket compressor risks poor performance, oil incompatibility, and premature failure. Installing the factory compressor restores full cooling capacity and safeguards your Lennox system and its 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 Compressor — 14K56?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Compressor — 14K56. 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 Compressor — 14K56?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online