Amana-Goodman 4021309S 4-Cell Furnace Secondary Heat Exchanger OEM Replacement

The Amana-Goodman 4021309S is a genuine OEM 4-cell secondary heat exchanger designed as a direct replacement component for compatible Amana and Goodman gas furnaces. Also referenced under the internal product description HEAT EXCH PCKGING 4C17.5 MOD A, this part is engineered to restore proper furnace operation and heating efficiency.

How It Works:

The secondary heat exchanger transfers combustion heat to circulating air while keeping exhaust gases safely separated from conditioned air. Its 4-cell design provides increased surface area for efficient thermal energy exchange across air streams, helping maintain optimal system temperatures and reducing overall energy consumption.

Key Features:

• Genuine Amana-Goodman OEM replacement part
• 4-cell design for maximum heat transfer surface area
• Secondary heat exchanger — provides supplementary heating in a single package unit
• Sturdy construction for long-term durability and reliable performance
• Direct fit for compatible Amana-Goodman furnace models — no modifications required
• Sold as a single unit

Compatible Models:

• DDS80904BXA
• DMS80904BNA
• GDH80904BX
• GDS80904BNA
• GDS80904BX
• GDS80904BXA
• GMH80904BN
• GMH80904BX

Replacing a cracked or failed heat exchanger is critical for both heating efficiency and safe furnace operation. This OEM part ensures a proper fit and restores the furnace to factory performance standards. OEM Part Number: 4021309S