Genuine Dyson DC15 Brushroll On/Off Switch, also works for DC07, DC14, DC17, DC18, DC21 , DC23, DC24, DC25, DC26, DC27, DC28C, DC33C, DC37C, DC39C, DC41C, DC39, DC52, DC54, DC78 and CY18 #901181-06

Genuine Dyson DC15 On/Off Switch.
Also Fits Dyson DC07, DC14, DC17, DC18, DC21 , DC23, DC24, DC25, DC26 City, DC27, DC28C, DC33C, DC37C, DC39C Origin, DC41C, DC39, DC52, DC54, DC78 and CY18 model vacuums

Part no # 901181-06, DY-90118106

Fits
DC15 All Floors USA (Steel/Yellow) 09329-02
DC15 Animal USA (Steel/Lavender) 09331-02
DC15 Full Kit (Costco Exclusive) USA (Steel/White/Yellow) 09332-05
DC15 HSN Exclusive USA (Steel/Yellow) 14469-01