Vacuum Brushroll Sensor Light Assembly - Kirby BPI Sensor, Electrical Circuit Board, Part #640303

The Kirby Brushroll Sensor Light Assembly, part number 640303, is a genuine OEM replacement designed specifically for select Kirby upright vacuums to monitor brushroll performance and signal when the brushroll is operating at its best. This assembly helps maintain optimal airflow and filtration by ensuring the brushroll is functioning properly, which reduces dust, fine particles, and allergens in your home. Ideal for homeowners, pet owners, and those with allergies, it supports a cleaner environment by protecting the vacuum motor from debris buildup and preserving strong suction for consistent cleaning results. Built to Kirby’s exacting standards for durability and precise fit, this part ensures your vacuum continues to deliver peak performance, and routine replacement is essential for long-term reliability and efficiency. For more information about potential exposure to chemicals, visit For more information about potential exposure to chemicals, visit www.P65Warnings.ca.gov.