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The Goodman 10254303 Rubber Coupling is a genuine OEM replacement part engineered for the Goodman GKS90904CXAE gas furnace. This flexible coupling creates a leak-free connection between condensate, drain, and vent components, absorbing minor vibration and thermal movement to keep your furnace running quietly and reliably. A worn or cracked coupling is a common cause of water leaks and hissing air noises — replacing it restores a proper airtight, watertight seal.
Our OEM Goodman coupling is molded to exact factory dimensions and rubber durometer, guaranteeing a precise fit and full-life durability. A generic aftermarket coupling costs less up front but may vary in inner diameter or wall thickness, risking slow leaks and premature hardening. For a critical seal in a heated appliance, OEM is the safe choice.
Easy (1/5) — Slip-on replacement. Shut off power and gas, remove the old coupling, and press the new one into place. No special tools required. Typical time: under 10 minutes.