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The Goodman B9102097 Liquid Line Cap with O-Ring is a genuine OEM refrigerant-line fitting designed for the Goodman WAHME4260P4ABA air handler and compatible WAHME-series units. This cap seals the liquid line service connection and includes a factory O-ring to maintain a leak-tight refrigerant circuit, protecting system charge and efficiency during shipping, storage, and service.
This is a genuine Goodman OEM part, machined to the exact thread pitch and O-ring groove of the original fitting. Generic caps often use mismatched O-ring durometers or thread tolerances that can weep refrigerant or cross-thread the fitting. Choosing OEM guarantees a proper metal-to-metal seat and long-term seal integrity on warranty-sensitive systems.
Easy (1/5). Hand-thread the cap onto the cleaned liquid-line port and snug with a wrench to seat the O-ring—no brazing, recovery, or special tools required. Always confirm the line is at safe pressure before servicing.
Backed by exact-fit OEM sourcing and fast shipping from National HVAC Parts.