OEM Goodman Liquid Line Cap with O-Ring for WPC4442AHAA — B9102097

The genuine Goodman B9102097 Liquid Line Cap with O-Ring is the factory service-port seal for the liquid line on your Goodman WPC4442AHAA air conditioner. This cap protects the Schrader valve from contamination and provides a secondary leak-tight seal against refrigerant loss. The included O-ring is the part that most often hardens, cracks, or goes missing — and a worn seal is a common source of slow refrigerant leaks.

Specifications

• OEM Part Number: B9102097
• Part Type: Liquid Line Service Cap with O-Ring
• Fits Model: WPC4442AHAA
• Brand: Goodman
• Equipment: Air Conditioner / Condensing Unit
• Includes: Brass cap + replacement O-ring seal
• Fit Type: Direct OEM thread match

OEM vs. Generic

The genuine Goodman cap ships with the correctly sized, refrigerant-rated O-ring and matches the factory thread pitch exactly. Generic caps may use the wrong O-ring durometer or thread, leading to weeping leaks at the service port. For sealing refrigerant under pressure, the OEM part is worth the small premium.

Installation Difficulty

Very Easy (1/5). Hand-tighten the cap onto the liquid line service port — no special tools required. Seat the O-ring and snug the cap finger-tight plus a slight turn. A 5-minute job. Have the system serviced by a licensed tech if refrigerant pressure needs to be checked.