OEM Goodman Liquid Line Cap w/ O-Ring for WPC4348AHBA — B9102097

Goodman B9102097 Liquid Line Cap with O-Ring

The Goodman B9102097 is a genuine OEM liquid line service cap, supplied with its sealing O-ring, for WPC4348AHBA air conditioning units. This cap threads onto the liquid line service port and forms the secondary seal that prevents refrigerant from leaking past the Schrader valve. A missing, cross-threaded, or dry-rotted cap is a common cause of slow refrigerant loss — and a slow leak means weak cooling and eventual compressor damage.

Specifications

• OEM Part Number: B9102097
• Brand: Goodman
• Fits Model: WPC4348AHBA
• Includes: Service cap + sealing O-ring
• Function: Liquid line service port seal

OEM vs. Generic

The genuine Goodman cap arrives with the correctly sized, refrigerant-rated O-ring already matched to the port threads. Generic caps may use the wrong O-ring durometer or thread pitch, which won't seal reliably under system pressure. Because this part directly protects your refrigerant charge, the OEM seal is worth the small premium.

Installation Difficulty

Easy (2 of 5). With the system off, seat the O-ring and hand-thread the cap onto the service port, then snug it with a wrench — do not over-tighten. If the port was leaking, have refrigerant levels checked afterward by a licensed technician, as handling refrigerant requires EPA certification.