Quick answer
Replace a worn Duromatic pressure cooker bulón by choosing the correct spring bolt diameter (35 mm for older lid handles, 45 mm for newer ones) and following a simple no-tool removal and snap-in installation process.
Why the bulón matters
The spring bolt (bulón) is the small pin that secures the lid handle to the pressure cooker lid. Over time, the spring can weaken or the pin can wear, causing the handle to feel loose or detach during use. A genuine Kuhn Rikon replacement restores the original fit and safety.
Choosing the right size
Kuhn Rikon offers two bulón diameters: 35 mm and 45 mm. The 35 mm version fits older Duromatic lid handles; the 45 mm version fits newer models. If you are unsure, measure the existing pin or check the handle's part number. Using the wrong size will not secure the handle properly.
Diagnosis and replacement steps
- Symptom: Lid handle feels loose, wobbles, or the retaining pin does not click firmly into place.
- Likely cause: Worn spring or deformed pin on the existing bulón. The spring loses tension over years of use. Inspect the old bulón: if the spring looks flattened or the pin is bent, replacement is needed.
- Corrective action: Remove the old bulón by pressing the spring and sliding it out. Insert the new genuine Kuhn Rikon bulón of the correct diameter (35 mm or 45 mm) until it clicks. No tools required. Test the handle by gently pulling it after installation. It should feel solid with no side-to-side play.
- Stop or choose another option: If the handle itself is cracked or the lid does not seal after replacement, stop and consult Kuhn Rikon support or a qualified technician. Do not use the pressure cooker with a damaged handle. A damaged handle cannot be fixed by replacing the bulón alone; order a replacement handle part instead.
Replacement bulón options
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Bulón muelle · Ø 45 mm: Genuine Kuhn Rikon spring bolt with 45 mm diameter, designed for Duromatic pressure cooker lids. This is the correct size for most current Duromatic models; ensures a tight, wobble-free handle.
Bulón muelle · Ø 45 mm
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Bulón muelle · Ø 35 mm: Genuine Kuhn Rikon spring bolt with 35 mm diameter, for older Duromatic lid handles. Use this size if your handle measures 35 mm across; avoids a loose fit that could compromise safety.
Bulón muelle · Ø 35 mm

