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This OEM Goodman B9102097 liquid line cap is a direct-fit sealing component engineered for the WGGE4336A090MAB furnace and other compatible Goodman/Amana equipment. It includes a pre-installed O-ring that creates a leak-tight seal on the liquid line service port, protecting the refrigerant circuit from contamination and moisture intrusion during service and storage.
The genuine Goodman part guarantees exact thread pitch and O-ring durometer, ensuring a reliable factory seal. Generic caps may fit loosely or use lower-grade seals that harden and leak over time. Choose OEM for a guaranteed match and long-term reliability.
Easy — a hand-tightened replacement that most DIYers can complete in minutes. No refrigerant handling required for the cap itself. If working on the sealed system, use an EPA-certified technician.