4055930244 Genuine 55mm Phenolic Control Knob, 6.5mm Fitting, for Electrolux Group Cooking Appliances

This genuine Electrolux knob, part 4055930244, is made from phenolic, a hard heat-resistant plastic often chosen for controls that sit close to a flame or hot surface. The stock description gives two sizes, 55mm and 6.5mm, which most likely mean a 55mm knob for a 6.5mm shaft. Without a model list to go on, measure your old knob and the control shaft before ordering 4055930244.

Why phenolic knobs are used on hot controls

Ordinary plastics soften and distort when they sit near burners, so phenolic resin is used where a knob has to stay rigid and comfortable to touch. Even so, years of heat and cleaning can leave a phenolic knob brittle. The usual failures are a cracked skirt, a split around the shaft hole that lets the knob spin, or a broken insert that no longer grips. A knob that slips is more than a nuisance on a gas appliance, because you can't be sure the control is fully off.

Part details

• Genuine Electrolux part 4055930244
• Phenolic heat-resistant material
• 55mm size
• 6.5mm fitting

Fitting the knob

Make sure the appliance is off and the control area is cool. Pull the old knob straight off and check the shaft shape, whether round, D-shaped or with a flat. Push the new knob on so it seats fully and lines up with the off marking. Turn it through its full range to confirm it grips. If a gas control feels stiff or won't return to off, stop and call a licensed gas fitter.

Questions about this part

How do I measure my old knob?

Measure straight across the widest part of the knob face for the diameter, then measure the shaft it fits onto. If your knob is about 55mm across and the shaft about 6.5mm, this part is worth checking against your model's parts list.