Set of 4 Cooktop Burner Knobs, part number WP74010839, compatible with models JED8430BDB JED8430BDF JED8430BDS. Condition: . Key benefits Restores full control of cooktop burners by replacing worn, cracked, or missing knobs. Directfit replacement using the original part number for consistent fit and reliable operation. Four knobs included for uniform appearance and simultaneous replacement of all burners. Designed to match the original equipment specifications so position markings and tactile response remain familiar. What these knobs do Function: control burner on, off, and variable heat settings for each cooktop burner. Compatibility: specifically made to fit models JED8430BDB JED8430BDF JED8430BDS using part number WP74010839. Quantity: set of four knobs, one for each burner position. Attributes and performance Fit and function engineered to the original part number to ensure correct engagement with the control shafts and accurate adjustment. condition delivers consistent turning action and clear setting positions to help maintain safe and predictable cooking control. Appearance restored when replacing a full set, improving visual uniformity on the cooktop. Typical applications and use scenarios a single cracked or melted knob after accidental damage to restore safe and reliable control of the affected burner. all four knobs during a kitchen refresh to eliminate mismatched or discolored controls and achieve a consistent look. Keep a set on hand for routine maintenance in rental properties or service settings to reduce downtime when a knob fails. Installation notes Sold as a direct replacement part by part number WP74010839 for the listed models. Installation is straightforward for the compatible cooktop models; verify alignment with the control shaft before final placement. This set provides a straightforward, modelspecific replacement to restore function and appearance for cooktops using part number WP74010839 and the listed model numbers.