4055986543 Genuine Electrolux Universal Control Knob 40mm Black, Single Knob for Ovens, Cooktops and Upright Cookers

Lost a knob or cracked one? Part 4055986543 is a genuine Electrolux universal control knob, 40mm in size and finished in black, sold one at a time. Universal knobs earn their keep when the original for an older stove, oven or cooktop has been discontinued or is hard to source. Before ordering, check your control shaft and make sure a 40mm knob sits comfortably on the panel.

Why a universal 40mm knob is worth considering

Behind every knob is a shaft that turns a thermostat, switch or gas valve. When the knob's insert wears or the body cracks, the knob spins without moving the control, sits crooked or keeps falling off. Some people end up turning bare shafts with pliers, which is unsafe and can break the control itself. A universal knob restores a firm grip without hunting for a part that may no longer be made. Black suits darker control panels. Because a universal knob may look different from the originals, some owners replace the whole row for a matching look.

Part details

• Genuine Electrolux part number 4055986543
• Universal style control knob
• 40mm size, black finish
• Sold as a single knob

Checking fit and fitting the knob

Turn the appliance off and, on gas models, close the gas isolation valve before working at the controls. Pull the old knob straight off and look at the shaft shape. Offer the new knob up to confirm it suits the shaft, then press it home. Universal knobs don't always line up with the original markings, so note where off sits before you rely on it.

Questions about this part

Will a 40mm universal knob fit my stove?

It comes down to the shaft and the space on the panel. Compare the shaft on your appliance with the knob, and check a 40mm knob won't foul the panel or the knob beside it. If you're unsure, send your model through our parts enquiry form.