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The Goodman 10254303 Rubber Coupling is a genuine OEM replacement designed for AMV90704CXAB gas furnaces and compatible Goodman/Amana high-efficiency models. This flexible coupling creates a leak-tight, vibration-dampening connection between condensate and inducer/drain tubing runs, keeping combustion byproducts contained and your furnace operating safely and quietly.
Over time, factory rubber couplings harden, crack, or loosen from repeated heat cycling, which can cause water leaks, whistling, or nuisance pressure-switch faults. Replacing this low-cost part restores a proper seal and protects surrounding components from moisture damage.
Our Genuine OEM Goodman coupling is molded to exact factory dimensions and durometer for a guaranteed seal. Generic aftermarket couplings may vary in inner diameter and wall thickness, leading to slow leaks or premature failure. For a critical sealing point, we recommend the OEM part.
A basic DIY repair — no special tools required. Power down the furnace, slide the old coupling off, seat the new one squarely on both fittings, and confirm a snug fit. Always verify system operation and check for leaks after installation. If you are unsure, consult a licensed HVAC technician.