This is a genuine Chef white cooktop control knob with part number 305519703. It serves as a replacement for part numbers 305517901 and 305519701. This knob is suitable for a range of Chef & Simpson white cooktops, including models GHC605W, GHC607W, GHC615W, GHC617W, GHS605W, GHS607W, GHS915W, GHS917S, GHC935W, GHC937W, 72J315W, and WHI324BA. The knob has a diameter of 41mm, a height of 25mm, and a height including the shaft of 34.7mm. The shaft has a diameter of 6mm. When the pointer is pointing up and the knob is viewed from the back, the flat side of the shaft is on the right - hand side. If you're unsure whether this part is suitable for your cooktop, just contact us with your full model number before purchasing. We'll check with the manufacturer for you. With over 25 years of experience supplying appliance parts to both the trade and retail sectors, you can buy with confidence.



Using this Chef cooktop control knob is easy. Just align the flat side of the shaft with the corresponding slot on your cooktop when the pointer is pointing up. Then, gently push the knob onto the shaft until it fits securely. When using your cooktop, turn the knob smoothly to adjust the heat settings as needed. As for maintenance, clean the knob regularly with a soft, damp cloth to keep it looking good. Avoid using abrasive cleaners that could scratch the surface. If you're not sure if this knob fits your cooktop model, don't hesitate to reach out to us before buying. We're here to help you make the right choice.