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Lennox

OEM Lennox Scroll Compressor ZP42K5E 460V R-410A — 18W52

SKU: LNX-18W52 Brand: Lennox
$389.95 $529.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

The OEM Lennox 18W52 is a Copeland ZP42K5E-TFD-830 scroll compressor rated at 41,900 BTUH, 460V, R-410A, 3-phase operation. This scroll compressor is the driving force of your Lennox condensing unit, compressing and circulating refrigerant to carry heat away from the conditioned space. It is supplied as a genuine factory replacement, precisely matching the capacity, voltage, and refrigerant specifications of your original Lennox compressor.

Common failure symptoms: the unit runs but delivers no cooling, grinding or knocking sounds, tripped breakers or blown fuses at startup, short-cycling, hard starting, and elevated amp draw. A compressor that hums but won't start, or one that repeatedly trips on internal overload, is usually at the end of its service life.

Why OEM matters: Lennox systems are engineered around exact compressor displacement, oil charge, and electrical protection. Installing the authentic 18W52 guarantees proper refrigerant flow, rated efficiency, and full compatibility with Lennox controls and safeties — ensuring the reliability generic substitutes can't provide. Verify voltage and application before installation.

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 ZP42K5E 460V R-410A — 18W52?
Yes. This is the factory-specified OEM compressor for the Lennox OEM Lennox Scroll Compressor ZP42K5E 460V R-410A — 18W52. 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 ZP42K5E 460V R-410A — 18W52?
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