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The Goodman 10254303 Rubber Coupling is a genuine OEM replacement connector used on the AMVC950453BXAE 96% AFUE two-stage variable-speed gas furnace and many other Goodman/Amana high-efficiency models. This flexible coupling joins condensate drain and vent hose sections, sealing the connection against water leaks and small air losses while absorbing vibration between components.
Over time, rubber couplings harden, crack, or slip loose — leading to nuisance water drips, pressure-switch faults, or a furnace that short-cycles. Replacing this inexpensive part restores a tight, reliable seal and protects the surrounding cabinet from moisture damage.
OEM vs. Generic: Our OEM Goodman coupling is molded to the exact inside diameter and durometer specified by the manufacturer, so it seats fully and holds its seal for years. Bargain generic couplings are often over- or under-sized, which causes slow leaks and repeat failures. For a part this affordable, genuine OEM is always the smart choice.
Installation difficulty: Easy (1/5). Power down the furnace, slide the old coupling off the hose barbs, press the new one into place, and confirm a snug fit. No tools required — typically a 5-minute repair.