Vacuum Screw Knob - Kirby Blue Handle Fork Cover, Fits 3CB Tradition, Part #174979S

The Kirby Handle Fork Cover Screw Knob, part number 174979S, is a genuine OEM replacement designed specifically for Kirby 3CB Tradition upright vacuums, providing a secure fit that keeps the handle fork cover firmly in place for optimal stability and smooth operation. Engineered to Kirby’s high standards, this blue screw knob helps maintain the vacuum’s original appearance while ensuring a precise fit that supports strong airflow and effective filtration, reducing dust, fine particles, and allergens in your home. By keeping the handle fork cover properly secured, it protects the vacuum motor from debris buildup, helping to preserve powerful suction and consistent cleaning performance. Ideal for homeowners, pet owners, and allergy-sensitive households, this durable part is essential for maintaining your vacuum’s efficiency and prolonging its lifespan, making routine replacement a key step in ensuring long-term performance and cleaner indoor air. For more information about potential exposure to chemicals, visit For more information about potential exposure to chemicals, visit www.P65Warnings.ca.gov.