Presto Pressure Cooker Sealing Ring and Overpressure Plug

You should replace your sealing ring if you notice steam escaping from the lid during cooking, if the cooking time has become significantly longer than usual, or if the ring itself feels brittle, cracked, or stretched out.

No, this specific kit is designed for 6-quart Presto pressure cookers and replaces part numbers 09904 and 50295. Always check your specific model number or manual to ensure compatibility before purchasing.

The overpressure plug is a critical safety component that releases steam if the primary vent pipe becomes blocked. It is standard practice to replace the plug whenever you replace the sealing ring to ensure your cooker maintains its full safety integrity.

Not at all. The sealing ring is flexible and fits into the groove on the underside of the lid, while the overpressure plug pushes into its designated hole. No special tools are required for either part.

While not strictly required, applying a very light coating of vegetable oil to the sealing ring can help it seat properly and make the lid easier to open and close during the first few uses.