Lennox is a leading manufacturer of residential and commercial HVAC equipment, known for engineering precision, long-term reliability, and strict OEM quality standards. Genuine Lennox replacement parts are designed to meet exact factory specifications, ensuring proper fit, performance, and system compatibility.

 

Product overview:

The Lennox 12W74 Indoor Coil, part number 659576-03, is a genuine OEM evaporator coil designed for use in compatible Lennox indoor HVAC systems. This coil plays a critical role in the heat exchange process by absorbing heat from indoor air, allowing the system to deliver efficient and consistent cooling performance.

Manufactured to Lennox factory standards, this indoor coil ensures correct refrigerant flow, optimal heat transfer, and long service life. Using an OEM Lennox coil helps maintain system efficiency, prevents refrigerant leaks, and reduces the risk of premature component failure compared to aftermarket alternatives. It is intended for professional HVAC service, repair, or system restoration where original performance is required.

 

Specifications:

Brand: Lennox
Part number: 12W74
Alternate part number: 659576-03
Product type: Indoor evaporator coil
Application: Lennox compatible indoor HVAC units
Function: Heat exchange for cooling operation
OEM status: Genuine Lennox factory part
Installation: Indoor, professional installation recommended