Kirby Variable Speed Suction/Blower Assembly - Satin Gray, G3/G4 3920 The strip and cap seat

The strip and cap seat into the nozzle by hand with no tools

which shows up as patchy pickup and reduced agitation

Tip: Replace any cord showing nicks or exposed wire

Part: valve disc

rated at 1450 watts with up to 135 CFM of airflow and 136 inches of water lift

Kirby Variable Speed Suction/Blower Assembly - Satin Gray, G3/G4 3920 The strip and cap seatThis genuine OEM Kirby variable speed suction and blower assembly in satin gray serves the Gen 3 and G4. The unit adjusts airflow for vacuuming and blowing tasks through the attachment system, giving you variable control at the tool. With age the assembly's housing or speed control can crack or wear, causing air leaks, lost suction, or erratic speed at the attachments. A leaking unit undercuts every above floor job. A sound assembly restores full,