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The Goodman 10254303 Rubber Coupling is a genuine OEM connector/seal component for the AMVC950453BXBA modulating gas furnace and compatible Goodman and Amana models. This flexible rubber coupling joins two lines — commonly on the inducer, condensate drain, or pressure-switch tubing path — creating an airtight, vibration-dampening seal. Over time rubber hardens, cracks, and leaks, which can cause pressure-switch faults, condensate leaks, or combustion-air problems. Replacing it with the correct OEM part restores a proper seal.
The OEM coupling is molded to the exact diameter and durometer needed for a leak-free fit. Generic rubber connectors are often the wrong size or a softer compound that fails prematurely and can cause hard-to-diagnose pressure-switch lockouts.
Very Easy (1/5) — Slide the old coupling off, seat the new one fully onto both connection points, and confirm it is snug. No tools required in most applications. Inspect adjacent tubing for cracks while you are in there.