OEM Goodman Liquid Line Cap w/ O-Ring for WPC4424AHAB — B9102097

Goodman B9102097 Liquid Line Cap with O-Ring

The B9102097 is a genuine Goodman liquid line service cap with an integrated O-ring seal, designed for the WPC4424AHAB air conditioner and compatible Goodman/Amana condensing units. This brass service-port cap protects the liquid line Schrader valve from dirt and moisture while the captive O-ring forms a positive, leak-free secondary seal against refrigerant loss. Replacing a worn or missing cap is one of the cheapest ways to prevent slow R-410A leaks at the service port.

Specifications

• OEM Part Number: B9102097
• Part Type: Liquid Line Cap with O-Ring
• Fits Model: WPC4424AHAB
• Brand: Goodman
• Application: Air Conditioner liquid line service port
• Seal: Captive O-ring for leak-tight closure

OEM vs. Generic

The genuine Goodman OEM cap ships with the correct thread pitch and a factory-spec O-ring rated for high-pressure R-410A systems, so it seats fully and seals on the first turn. Generic universal caps often use the wrong O-ring durometer or loose threads, leading to slow leaks that fail at the next gauge check. For a sealing component this inexpensive, OEM is the smart choice.

Installation Difficulty

Easy (1/5). Hand-thread onto the liquid line service port and snug with light wrench tension — no tools or recovery required. Most homeowners can replace this in under a minute.