4055539086 Genuine Rapid Burner Cap Matt Black Enamel for Electrolux Group Gas Cooktops, Large Burner Cap Replacement

Part 4055539086 is a genuine Electrolux cap for the rapid burner, finished in matt black enamel. The rapid is the large, high output burner used for boiling and searing. Its cap rests on the crown and shapes the flame into an even ring. Replace it when the enamel is chipped or crazed, the cap has warped from heat, or it has gone missing. Confirm 4055539086 against your cooktop parts list first.

Rapid burner lighting poorly or burning unevenly

Because the rapid burner runs at the highest output, its cap sees the most heat. Over time the enamel can chip, exposing bare metal that rusts and flakes. A warped or misplaced cap leaves gaps, so the flame may be patchy, noisy or lift away from the ports. It can also make ignition slow or cause the burner to drop out. Check the cap is clean, dry and resting flat on the crown before deciding it needs replacing.

Part details

• Genuine Electrolux part 4055539086
• Cap for the rapid burner
• Matt black enamel finish
• Model fit not on file, check against your parts list

Fitting a new rapid burner cap

Let the cooktop cool and confirm the burner is off. Remove the old cap and wipe the crown clean and dry. Seat the new cap on its locating points so it is level, then light the burner on high and low. A steady blue ring of flame means it is right. Have a licensed gas fitter check any gas smell or lifting flame.

Questions about this part

How do I tell the rapid cap from the others?

On most cooktops the rapid is the largest single ring burner, so its cap has the widest diameter of the standard burners. Measure your old cap and compare it with the cooktop parts list before ordering 4055539086.