IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman B9102097 Liquid Line Cap with O-Ring is a genuine OEM sealing fitting for the liquid-line service connection on WAHME4260P4AEA air handlers. The integrated O-ring provides a secondary, refrigerant-tight seal over the service port, preventing slow leaks that degrade system performance and waste refrigerant.
A cap is a small part, but the wrong thread pitch or a hardened generic O-ring is a common source of nuisance refrigerant leaks. This OEM cap matches Goodman's thread and sealing specification exactly and arrives with a fresh, correctly sized O-ring — the right way to restore a positive seal after any service that opens the liquid line.
O-rings dry out and crack with age and heat cycling. Replacing the cap and O-ring after recovering or charging refrigerant ensures the service port holds a vacuum and stays leak-free between visits.
Hand-thread the cap onto the service port and snug to spec — no special tools beyond a wrench. Always recover refrigerant and follow EPA Section 608 handling requirements; service work should be performed by a certified technician.