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Set of two "lighted" control knobs for main burners. Fit Summit 400/600 Series "model years 2007-2011". Diameter of the knobs is 2-3/8". Feature translucent body for emitting light, red Weber Kettle logo on chrome top, gray finger grip notches and "Off/Ignition/High To Low" graphics. Genuine Weber Part. Helpful Installation Tip: place a small amount of liquid soap (or similar) to the control knob valve stem shaft prior to pressing the knob into place.
If you're replacing knobs on a Summit manufactured from 2012 - 2023, see part number 91538.
Please compare part photos and descriptions. Measure when necessary. Parts may vary between models.