OEM Goodman Liquid Line Cap with O-Ring for CPC180 — B9102097

Goodman B9102097 Liquid Line Cap with O-Ring

The Goodman B9102097 is a genuine OEM liquid line service valve cap with a pre-installed O-ring, designed for Goodman CPC180XXX7BXXXAA air conditioning systems. This cap provides the secondary seal over the liquid-side service port — the primary leak barrier after the Schrader core. The captive O-ring delivers a positive, refrigerant-tight seal that prevents slow R-410A loss, which is critical on high-pressure 410A systems where even a weeping port can cause a low-charge fault over time.

Specifications

• Type: Liquid line service valve cap
• Seal: Integrated/pre-installed O-ring
• Side: Liquid (high) line service port
• Refrigerant: R-410A compatible
• Material: Brass / corrosion-resistant alloy

OEM vs. Generic

The genuine OEM B9102097 ships with the correct durometer O-ring sized to the Goodman service port, ensuring a leak-free seal on the first install. Generic caps often arrive without an O-ring or with a mismatched seal, leading to slow refrigerant loss and repeat service calls. At this price, OEM is the obvious choice.

Installation Difficulty: Easy

Hand-tighten the cap onto the liquid service port until snug, then finish with a wrench to the O-ring's seating point — do not overtighten. A two-minute job that should be performed any time the service port has been opened. Verify no leaks with an electronic detector after charging.