Bissell Separator Assembly for SurfaceSense Upright 3415, 3418

This genuine Bissell Separator Assembly (Part #163-5991) is the cyclonic dirt-separation unit for Bissell SurfaceSense upright vacuums. The separator spins the incoming airstream so dust and debris are pulled out and dropped into the dirt tank, while cleaner air continues on to the filtration stage. When the separator gets cracked, clogged with packed debris, or worn, you'll notice reduced suction and a dirt cup that fills unevenly or releases dust back into the air.

• What it is: Complete cyclonic separator assembly for the dirt tank
• Fits: Bissell SurfaceSense upright vacuums, models 3415 and 3418
• Function: Centrifugally separates dirt and debris from airflow to keep filters cleaner and suction strong

SurfaceSense uprights rely on this separator to deliver their advertised pickup across hard floors and carpet, so a healthy unit is key to performance. As an exact-fit Bissell replacement, Part #163-5991 drops straight into the same housing as the original with no adapters. Refresh your separator to restore consistent suction and cleaner exhaust.