How to Replace a RACO Pressure Cooker Gasket

By RACO Australia | Published: 2026-10-26

Category: How-to Guides

Learn how to replace the gasket on your RACO or Namco 6L stainless steel pressure cooker. Follow simple steps to restore the seal and get back to fast cooking.

Quick answer

To replace the gasket on your RACO or Namco 6L stainless steel pressure cooker, remove the old gasket, clean the lid groove, fit the new RACO gasket into place, and test the seal before cooking.

Why replace the gasket?

Over time, the gasket in your pressure cooker can harden, crack, or lose its flexibility, which breaks the airtight seal needed for pressure cooking. A worn gasket can cause steam leaks, longer cooking times, or food that isn't cooked evenly.

Replacing the gasket is far cheaper than buying a whole new pressure cooker. The RACO / Namco gasket is designed specifically for 6L stainless steel models with a 24cm diameter, so you can fix the issue without replacing the unit.

Check compatibility first

Before ordering a replacement, verify that your pressure cooker is a RACO or Namco stainless steel model with a 6L capacity and a 24cm diameter. Using the wrong gasket size can prevent a proper seal and create a safety hazard.

If you're unsure about your model, measure the diameter of the lid opening and check the capacity marking on the base of the cooker.

Step-by-step replacement steps

Ensure the cooker is cool and depressurized: Wait until the pressure cooker has cooled completely and the pressure indicator has dropped. Never attempt to remove the gasket while the cooker is hot or under pressure. Check that the pressure indicator is fully down before starting.
Remove the old gasket: Carefully pull the old gasket out of the groove around the lid. It may be stiff or brittle; work gently to avoid damaging the lid. Discard the old gasket – do not reuse it.
Clean the lid groove: Wipe the groove with a damp cloth to remove any food residue or debris. Dry it thoroughly before fitting the new gasket. A clean, dry groove helps the new gasket seat properly.
Fit the new gasket: Starting at one point, press the new gasket evenly into the groove all the way around the lid. Make sure it sits flat and is not twisted or stretched. Check that the gasket is evenly seated – no bulges or gaps.
Test the seal: Close the lid and lock it. Add water to the cooker and heat it to build pressure. Watch for any steam escaping around the lid. If you see leaks, reopen and reseat the gasket. If leaks persist, double-check that the gasket is the correct size for your model.

Product facts

RACO / Namco Gasket For Stainless Steel 6L Pressure Cooker (24cm Diameter): This RACO / Namco gasket is suitable for RACO and Namco stainless steel pressure cookers with a 6L capacity (24cm Diameter). It ensures a perfect fit for your specific pressure cooker, so you can restore the seal without buying a new unit.
RACO / Namco Gasket For Stainless Steel 6L Pressure Cooker (24cm Diameter)