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The Goodman 10254303 is a genuine OEM rubber coupling used to connect and seal hose and drain connections on the WFD195090S4CAB condensing gas furnace. Over years of exposure to heat, condensate, and vibration, rubber couplings harden and crack, causing pressure-switch faults, water leaks, and lockout codes. Replacing this small part restores a leak-free seal and reliable furnace operation.
Genuine Goodman couplings are molded to the exact inside diameter and durometer needed for a tight, lasting seal. Generic tubing often slips or weeps under pressure and may not survive furnace-cabinet temperatures. The OEM part is inexpensive insurance against repeat callbacks.
Very Easy (1/5). Slide off the old coupling, push the new one onto the fittings, and reseat any clamps. A 5-minute job — just power down the furnace and confirm no condensate leaks after restart.