10Pcs Chainsaw Primer Bulb Pump for Ryobi Stens Homelite Zama Stihl Ms211 Ms210
For Stihl Ms211 Ms211c Ms192t Ms192tc Ms210 Ms230 Ms250 Ht250 Fs36 Fs40 Fs44 Fs120 Fs120r Fs250 Fs250r. For Ryobi 791-683974 B 683974. For Ryobi RY3714 RY3716 RY3818. item type Carburetor. reference part number 188-512, 188-512-1.