OEM Goodman Liquid Line Cap w/ O-Ring for WGHP4430AAE — B9102097

The Goodman B9102097 Liquid Line Cap with O-Ring is a genuine OEM service fitting for the Goodman WGHP4430AAE packaged heat pump and air conditioner. This cap threads onto the liquid line service port and, together with its captive O-ring, forms a leak-tight secondary seal that protects the Schrader valve core from contamination and prevents slow refrigerant loss. A missing or cracked cap, or a flattened O-ring, is a common cause of low-charge call-backs — replacing it is cheap insurance for system performance.

Specifications

• OEM Part Number: B9102097
• Brand: Goodman
• Compatible Model: WGHP4430AAE
• Type: Liquid line service port cap
• Includes: Captive sealing O-ring
• Function: Secondary refrigerant-side seal / core protection

OEM vs. Generic

The OEM Goodman cap ships with the correct thread pitch and a pre-fitted O-ring rated for refrigerant service. Generic caps often arrive without the O-ring or with a mismatched durometer that takes a set and weeps over time. Buying the factory part guarantees the seal seats square and holds.

Installation Difficulty

Rating: Easy. A 5-minute job requiring no tools beyond a wrench for snug hand-tight torque. Inspect the O-ring for nicks before installing, seat the cap squarely, and tighten until snug — do not over-torque. No refrigerant recovery is needed to replace the cap itself. A great preventive part to keep on the truck.