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The Goodman 10254303 Rubber Coupling is a genuine OEM sealing component used on the condensate and drain plumbing of the Amana AMH951155DXAD 95%+ AFUE multi-position gas furnace. This flexible coupling creates a leak-tight connection between drain fittings, the collector box, and condensate tubing, preventing water seepage that can corrode the heat exchanger cabinet and trip pressure switches.
Our OEM coupling is molded to the exact durometer and inner diameter Goodman engineered for a factory-tight seal, resisting the acidic condensate produced by high-efficiency furnaces. Aftermarket generic couplings often use a softer or thinner rubber that takes a set, cracks, or slips under thermal cycling — a common cause of nuisance drain leaks. For a component this inexpensive, OEM is the reliable choice.
Easy (1/5). No tools beyond your hands are typically required — power down the furnace, slide the old coupling off, seat the new one fully onto both fittings, and confirm a snug fit. Most homeowners complete this in under 5 minutes.
Always shut off electrical power and gas before servicing. If you are unsure of your furnace model or the correct part, contact us at info@nationalhvacparts.com and we will confirm fitment.