OEM Goodman Liquid Line Cap with O-Ring for CPC180XXX4BXXXAA — B9102097

The genuine OEM Goodman B9102097 Liquid Line Cap with O-Ring is the factory sealing cap for the liquid line service port on the CPC180XXX4BXXXAA condenser and compatible Goodman/Amana units. The cap is the secondary leak barrier over the Schrader valve — its captive O-ring forms a positive seal that prevents slow refrigerant loss and keeps moisture and dirt out of the service port between visits.

Specifications

• Type: Liquid line service-port sealing cap
• Includes: Pre-fitted O-ring gasket
• Refrigerant: R-410A rated
• Material: Brass / plated metal cap with elastomer seal
• Fits: Goodman CPC180XXX4BXXXAA liquid line service fitting and compatible models

OEM vs. Generic

The OEM cap comes with the correctly sized O-ring already installed and the exact thread pitch for the Goodman liquid line port, so it torques down to a true leak-tight seal. Generic caps cost less but may use a mismatched O-ring or thread, risking a slow seep that gradually undercharges the system. For a $9 sealing part on a sealed system, OEM is inexpensive insurance.

Install Difficulty: Easy

Simple hand-service item. With the system at rest, thread the cap onto the liquid line port and snug it to seal the Schrader valve. No refrigerant recovery is required to replace the cap itself. Always wear eye protection when working near service ports.