The Lennox 31K74 is an OEM replacement blower shaft engineered to restore proper blower assembly operation in compatible Lennox HVAC systems. Precision-manufactured to exact factory specifications, this shaft ensures a secure, accurate fit that minimizes vibration, reduces wear on bearings and pulleys, and supports consistent airflow delivery throughout the system.
Key Features
- OEM Lennox replacement part — SKU 31K74
- Shaft length: 18 inches
- Shaft diameter: 1 inch
- Designed for direct drop-in replacement in compatible Lennox blower assemblies
- Precision-machined for accurate fit and reduced operational vibration
- Supports long-term blower assembly reliability and performance
Application
The Lennox 31K74 blower shaft is intended for use in Lennox HVAC equipment requiring an 18-inch, 1-inch diameter blower shaft. Always verify compatibility with your specific Lennox unit model before installation. Consult the equipment service manual or a qualified HVAC technician to confirm proper fit and installation procedures.
