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The Goodman B1796632 Seal and Nut (3/8 inch) is a genuine OEM sealing set for refrigerant tube connections on the ARPF364216BA air handler coil assembly. The seal and matching nut form a leak-tight 3/8" joint at the metering device or coil connection. Worn seals and over-torqued nuts are a common source of slow refrigerant leaks — replacing them with the factory set restores a proper, code-compliant seal whenever a connection is opened for service.
This OEM Goodman seal and nut are matched to the exact thread pitch and sealing surface of the factory fitting. Generic hardware can have slightly different thread or seal durometer, leading to slow leaks that are hard to diagnose. The OEM set guarantees a clean, reliable seal on the first install.
Moderate (3/5). The seal swap itself is quick, but the connection typically carries refrigerant — recovery, evacuation, and recharge by an EPA-certified technician are required when opening the joint. Allow 30–60 minutes. Always confirm the system is isolated before loosening the nut.