Description
The Rheem-Ruud AS-104123-42 is an OEM replacement 90% furnace burner assembly designed for use in Rheem and Ruud high-efficiency gas furnaces. This 4-burner natural gas (NL) assembly delivers reliable, consistent combustion performance and is engineered to meet the precise specifications of compatible Rheem-Ruud furnace models.
Product Overview
This burner assembly is a direct OEM replacement part, ensuring a proper fit and restoring your furnace to factory performance standards. Designed for 90% AFUE high-efficiency furnaces, the assembly supports clean, efficient combustion and long-term operational reliability.
Key Features
- OEM replacement burner assembly for Rheem and Ruud 90% AFUE furnaces
- 4-burner natural gas (NL) configuration
- Engineered for precise fit and factory-level combustion performance
- Supports consistent flame pattern and efficient fuel utilization
- Durable construction for long service life
- Direct drop-in replacement — no modifications required
Applications
- Compatible with select Rheem and Ruud 90% high-efficiency gas furnaces
- Ideal for residential HVAC service and repair applications
- Recommended for use by qualified HVAC technicians
Specifications
- SKU: AS-104123-42
- Brand: Rheem-Ruud
- Burner Configuration: 4-Burner
- Fuel Type: Natural Gas (NL)
- Furnace Efficiency: 90% AFUE
Always verify compatibility with your specific furnace model number before installation. Consult your equipment documentation or contact a qualified HVAC professional for assistance.







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