Presto Pressure Cooker Sealing Ring and Overpressure Plug

This kit is designed specifically for Presto pressure cookers with a 4-quart or 6-quart capacity. Before purchasing, check the bottom of your pressure cooker for the model number and verify it matches the list of compatible units provided in your owner's manual.

Both components are made of materials that degrade over time due to heat and pressure exposure. Replacing them together ensures your cooker maintains a consistent, safe seal and that the safety mechanism functions exactly as intended.

While the frequency depends on how often you cook, a good rule of thumb is to replace both the sealing ring and the overpressure plug at least once a year. If you notice the ring has become brittle, stretched, or cracked, replace it immediately regardless of age.

Yes, it is helpful to wash the new ring in warm, soapy water and dry it thoroughly before installation. Once installed, ensure it lies flat and is seated evenly around the inside rim of the cover to guarantee a proper seal.

The overpressure plug is a critical safety feature designed to release pressure if the primary vent pipe becomes blocked. If the plug becomes stiff or damaged over time, it may fail to release pressure correctly, which compromises the safety of your cooking process.