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The Goodman B9102097 is a genuine OEM liquid line service cap supplied with a sealing O-ring, designed for the Goodman WGPH4536AMAB packaged unit. This cap threads onto the liquid-line service port to provide a secondary, leak-tight seal over the Schrader valve, protecting the refrigerant charge and keeping dirt and moisture out of the system.
This genuine Goodman OEM cap arrives with the correctly sized O-ring for a guaranteed refrigerant-tight seal. Generic caps frequently ship with the wrong thread pitch or a loose O-ring, which can allow slow refrigerant leaks. OEM ensures a proper match and code-compliant seal.
Difficulty: Easy. Seat the O-ring, hand-thread the cap onto the service port, then snug it lightly with a wrench. No refrigerant recovery is required for the cap itself. Allow 5–10 minutes.